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Astronomy Units 1-5

Total questions: 500

Worksheet time: 9hrs 33mins

Name
Class
Date
1.
A light year is the 
a)
distance that light travels in one year
b)
Speed at which light travels 
c)
Distance between the sun and the earth. 
d)
Distance at which light no longer exists. 
2.

What is an astronomical unit (A.U.)?

a)

the time it takes light to travel one year

b)

the distance between the Earth and the Moon

c)

the distance between the Earth and the Sun

d)

the distance between the Earth and the Neptune

3.
What do we use astronomical units to measure?
a)
distances in our solar system
b)
How far our solar system is from others in our galaxy.
c)
The distances between galaxies. 
d)
The distance from one side of the universe to the other. 
4.

Why do we use light years and astronomical units to measure distances in space?

a)

Scientists want to sound smart.

b)

Hubble discovered these units and wanted to use them.

c)

Space is too small to use km, it wouldn't make sense.

d)

Space is too big, vast, enormous to use traditional units, like miles.

5.

Which of the following scenarios would be appropriate to use light years?

a)

From the sun to Earth

b)

from Earth to Neptune

c)

from the Milky Way to its closest galaxy

d)

Asteroid Belt to the Kuiper Belt

6.

Which of the following scenarios would we use Light Years to determine, not Astronomical Units (AU)?

a)

distance from Mercury to Saturn

b)

distance from Sun to Neptune

c)

distance from Earth to Sun

d)

distance from Asteroid Belt to the Betelgeuse Star

7.

Which of the following is CLOSEST to planet Earth:

a)

Jupiter

b)

Andromeda Galaxy

c)

Earth's moon

d)

the Sun

8.

Light year is a unit of _?_.

a)

time

b)

distance

c)

brightness

d)

heat

9.

Why create a new unit for distance?

a)

Kilometers or miles were too small.

b)

Kilometers or miles were too big.

c)

They could not agree whether to use kilometers or miles.

10.

Which is a longer distance: a parsec or a light year

a)

parsec

b)

light-year

c)

They are equal distances. Parsec is Latin for light-year.

11.

A.U. (astronomical units) are used to measure distances between _?_.

a)

stars

b)

planets

c)

galaxies

d)

solar systems

12.

Light years are used to measure distances between _?_.

a)

stars

b)

planets

c)

galaxies

d)

solar systems

13.

The distance that light can travel in a year is called....

a)

A light second

b)

A light minute

c)

A light month

d)

A light year

14.

This geometrically derived unit equals about 3.26 light years

a)

Astronomical Unit

b)

Light year

c)

Parsec

d)

Light second

15.

_____________ would be the best to use to measure the distance between galaxies

a)

Astronomical units

b)

Light seconds

c)

Light years

d)

Parsecs

16.

_______________ would be the best unit to use to measure the distance between the asteroid belt and Pluto

a)

Astronomical units

b)

Light seconds

c)

Light years

d)

Parsecs

17.

_______________ would be the best unit to use to measure the distance between the our sun and Proxima Centauri (our nearest star neighbor).

a)

Astronomical units

b)

Light seconds

c)

Light years

18.

What's wrong with Han Solo's claim of making "the Kessel Run in less than 12 parsecs"

a)

Even the Millennium Falcon can't travel that fast

b)

He should have used 'astronomical units'

c)

Parsec is a measure of distance, not time

d)

He should have used 'light seconds'

19.

An object at the other end of the universe is billions of ___________ away.

a)

AUs

b)

Light seconds

c)

Light minutes

d)

Light years

20.
A light year is the 
a)
distance that light travels in one year
b)
Speed at which light travels 
c)
Distance between the sun and the earth. 
d)
Distance at which light no longer exists. 
21.
What do we use astronomical units to measure?
a)
distances in our solar system
b)
How far our solar system is from others in our galaxy.
c)
The distances between galaxies. 
d)
The distance from one side of the universe to the other. 
22.
The average distance between the earth and the sun is the 
a)
astronomical unit 
b)
Light year
23.

Which distance is larger: 1 astronomical unit or 1 light-year?

a)

1 AU

b)

1 LY

24.

If an object is 7.4 light years away from Earth, what does this tell you?

a)

It would take 7.4 minutes for the light to get to Earth.

b)

Traveling at the speed of light it takes 7.4 yrs to get to the earth.

c)

The object is very close to Earth.

d)

It would take 7.4 seconds for the light to get to earth.

25.

What units would you use to measure the diameter of a planet?

a)

Light Years

b)

Astronomical Units

c)

Kilometers

d)

Centimeters

26.

The distance light can travel in one year is ______________

a)

15,000 kilometers

b)

1 light-year

c)

15 Astronomical Units

d)

6,000 miles

27.

Which unit of measure would be used to measure the distance from our solar system to the center of the MIlky Way?

a)

ft

b)

ly

c)

AU

d)

km

28.

Arrange the following distances in order from smallest to largest.

Kilometer

Light-year

Yard

Astronomical unit

a)

Yard, Astronomical unit, light year, Kilometer

b)

Yard, light year, Kilometer, Astronomical unit

c)

Yard, Kilometer, Astronomical unit, light year

29.

A light year is the ______________ light travels in a ____________. It is used to measure _____________ in space.

a)

Distance, Year, Distances

b)

Year, Distance, Distances

c)

Distance, Distance, Year

30.

Which two objects in space are located farthest apart?

a)

Earth and Mars

b)

Earth and the sun

c)

Earth and the moon

d)

the Milky Way galaxy and the Andromeda galaxy

31.

Space exploration has advanced our knowledge of the universe. Which space journey would take the longest?

a)

a journey from Earth to the sun

b)

a journey from Earth to the moon

c)

a journey from Earth to a star in the constellation Centaurus

d)

a journey from Earth to the farthest planet in our solar system, Neptune

32.

Which object is closest to Earth?

a)

Barnard’s Star

b)

Planet Neptune

c)

Andromeda galaxy

d)

Triangulum galaxy

33.
The sun and everything that revolves around it.
a)
solar system
b)
galaxy
c)
universe
d)
rotation
34.

The galaxy we are a part of is called:

a)

Milky Way

b)

Andromeda

c)

Whirlpool

d)

Sombrero

35.

The unit used to measure distances between objects like stars or galaxies is

a)

kilometers

b)

miles

c)

light years

d)

astronomical units

36.

Proxima Centauri is the closest star to Earth after the Sun and is located 4.3 light years away from Earth. How long does it take light from Proxima Centauri to reach Earth?

a)

1 year

b)

4.3 years

c)

43 years

d)

10 trillion years

37.

Which unit is best to measure the distance to Neptune?

a)

a red shift

b)

The Astronomical Unit

c)

a light-year

d)

a parsec

38.
If you were going to make a scale model of the Solar system what planet should be the largest?
a)
Jupiter
b)
Saturn
c)
Earth
d)
Uranus
39.

What is the time taken for the light to travel between the Sun and Earth?

a)

2 minutes

b)

4 minutes

c)

8 minutes

d)

12 minutes

40.

If an object is 7.4 light years away from Earth, what does this tell you?

a)

It would take 7.4 minutes for the light to get to Earth.

b)

Traveling at the speed of light it takes 7.4 yrs to get to the earth.

c)

The object is very close to Earth.

d)

It would take 7.4 seconds for the light to get to earth.

41.
The shift in position of an object, viewed along two different lines of sight, is called ___
a)
paralyses
b)
triangulation
c)
parallax
d)
perspicacity
42.
When using parallax, the distance between the two observation points is called ___
a)
the astronomical distance
b)
the astronomical unit
c)
the wavelength
d)
the baseline
43.
A parallax shift of one arcsecond (1/3600th of a degree) is called ___
a)
a light-year
b)
an astronomical unit
c)
a parsec
d)
a Kessel Run unit
44.
How far away is Proxima Centauri, the nearest star to the Sun?
a)
4.2 astronomical units
b)
42 astronomical units
c)
4.2 light years
d)
42 light years
45.

What is parallax?

a)

the average distance between a celestial object and Earth

b)

the angle formed by Earth and two celestial bodies located in different directions from Earth

c)

the apparent difference in the position of an object when viewed at the same time each year

d)

the apparent difference in the position of an object when viewed from different lines of sight

46.

Which of the following best describes the difference between two different units of distance in space?

a)

An AU is useful for measuring distances within the solar system; a light-year is useful for measuring distances beyond the solar system.

b)

An AU is calculated by dividing kilometers by 150 million; a light-year is calculated by determining how long it takes an object to travel 150 million AUs.

c)

An AU is useful for measuring objects fewer than 300 light-years from Earth; a parsec is useful for measuring objects more than 300 light-years from Earth.

d)

An AU equals the distance between Earth and the Sun; a parsec equals the angle between an object’s apparent positions when viewed from two different locations.

47.

Your friend argues that all the stars in a typical constellation are approximately the same distance from Earth. Is your friend correct?

a)

Yes. All the stars in a typical constellation are approximately the same distance from Earth.

b)

No. The stars in a constellation fall within the same patch of sky on the celestial sphere, but some stars are typically much closer to Earth than others.

c)

No. The stars in a constellation fall within the same patch of sky on the celestial sphere, but brighter stars are always much closer to Earth than dimmer stars.

d)

No. The stars in a constellation fall within the same patch of sky on the celestial sphere, but only equally bright stars are the same distance from Earth.

48.

An astronomical unit is equivalent to

a)

150,000 miles

b)

150,000 kilometers

c)

150 million miles

d)

150 million kilometers

49.

What is necessary to calculate a star's distance from Earth?

a)

the parallax angle

b)

the position of the star observes twice, six months apart

c)

the distance between the two points of observation

d)

all of the above

50.

What is the distance of Andromeda Galaxy measured from the Earth?

a)

1.7 million light years

b)

2.2 million light years

c)

28 million light years

51.

Which of the following will show the smallest parallax shift?

a)

the Moon

b)

the planet Jupiter

c)

the Sun

d)

Alpha Centauri, the nearest star

e)

the star 51 Pegasi, about 50 lightyears away

52.

How many Lightyears are in a Parsec?

a)

3.26

b)

1

c)

150 million

d)

30.1

53.
Because the Earth is 93 million mies from the Sun, the light from this star takes_____ to reach us.
a)
8 hours
b)
1 hour
c)
8 minutes
54.
An apparent shift in the position of an object when viewed from different locations. 
a)
Parallax
b)
Perihelion
c)
Solar Nebula
d)
Prominence
55.

The orbit of the Earth around the sun (diameter of 2 AU) is used as the ...

a)

parsec

b)

baseline

c)

parallax

56.

Dave runs a 400 m race with a speed of 4 meters per second. What time will it take him to finish the race?

a)

400 minutes

b)

100 minutes

c)

100 seconds

d)

.25 seconds

57.
What is the speed of a cheetah that travels 112.0 m in 4.0 s?
a)
0.0357 m/s
b)
28 m/s
c)
0.036 m/s
d)
28.0 m/s
58.
What is the distance formula?
a)
D=R/T
b)
D=T/R
c)
D=R*T
d)
Uhhh...
59.

If a man runs at a speed of 70 meters per second, and has a time of 30 seconds. Calculate the distance he ran.

a)

2100 m

b)

0.233 m

c)

2.33 m

d)

300m

60.
Michael rides his bike at a constant speed of 12 miles per hour. How far can he travel in 2 hours?
a)
1/2 mile
b)
6 miles
c)
24 Kilometers
d)
24 miles
61.

Joanna drives for 400 km at an average speed of 80 km per hour. How long was her journey?

a)

Joanna's journey was 5hrs long

b)

Joanna's journey was 10hrs long

c)

Joanna's journey was 20hrs long

d)

Joanna's journey was 15hrs long

62.

How do you calculate speed? (rate)

a)

divide the time by the distance (time/distance)

b)

Divide the distance by the time (distance/time)

c)

multiply the distance by the time (distance x time)

d)

multiply the speed by the time (speed x time)

63.

How do you calculate distance?

a)

Divide the speed by the time (speed/time)

b)

Multiply the rate of speed by the time (rate x time)

c)

divide the rate by the distance

64.

What are the underlined words?

Mike can run 50 miles per hour. If he ran for 3 hours, how far would he get?

a)

Distance

b)

Rate of Speed

c)

Time

65.

What are the underlined words?

Mike can run 50 miles per hour. If he ran for 3 hours, how far would he get?

a)

Distance

b)

Rate of Speed

c)

Time

66.

If distance = rate * time, which of the following must also be true?

a)

Rate = distance * time

b)

Time = distance ÷\div Rate

c)

Distance = rate ÷\div Rate

d)

Time = rate ÷\div Distance

67.

Which of the following steps is important in solving distance, rate, and time problems?

a)

Working quickly.

b)

Doing the whole problem in your head.

c)

Drawing diagrams.

d)

Memorizing the average speeds of different trains.

68.
Speed is equal to 
a)
Distance/Time
b)
Time/Distance
c)
Time x Distance
d)
Acceleration
69.

If a puppy runs across a park at a speed of 15 meters per second. The puppy has a time of 5 seconds. How far did the puppy run?

a)

75 m

b)

30 m

c)

45 m

d)

105 m

70.

You know you have a "rate" when you see which keyword?

a)

through

b)

under

c)

per

d)

via

71.
Where is the planet moving faster
a)
Position A to B
b)
Position B to C
c)
Position H to I
d)
Position I to J
72.
Kepler's first law states that the orbits of the planets are oval in shape or 
a)
ellipses
b)
perfect circles
73.

What is the speed of light?

a)

1 000 000 km/h

b)

359 892 560 m / s

c)

299 792 458 m / s

d)

It is impossible to calculate the speed

74.

The Milky Way measures ____ light years in length.

a)

26,000

b)

1 million

c)

1000

d)

100 thousand

75.
Which of the following is the largest?
a)
star
b)
universe
c)
cluster
d)
galaxy
76.

In comparison to other stars in the sky, the Sun appears brighter because it is–

a)

Bigger

b)

Smaller

c)

Nearer

d)

Further

77.
A student notices that the moon looks larger than the stars.  Why?
a)
The moon is reflecting light from the sun
b)
The moon is closer to Earth then the stars
c)
The moon is much larger than the stars
d)
The moon is much larger than Earth
78.
The color of a star depends on its
a)
size
b)
temperature
c)
shape
d)
magnitude
79.
Put the stars in order from coolest to hottest.
a)
Blue, White, Yellow, Orange, Red
b)
Red, Orange, Yellow, White, Blue
c)
Red, Orange, Yellow, Blue, White
d)
Red, Yellow, Orange, White, Blue
80.
What color of star is the coolest?
a)
Red
b)
Yellow
c)
Blue
d)
White
81.
Which property of a star is the brightness of a star at a standard distance?
a)
Apparent (magnitude) brightness
b)
Absolute (magnitude) brightness
c)
Luminosity
d)
Size of the star
82.
The brightness of a star as seen from Earth is its 
a)
apparent brightness.
b)
absolute brightness.
c)
parallax.
d)
reflective brightness.
83.
A very bright star can seem to be dimmer because it is 
a)
further away
b)
cooler in temperature
c)
very close
d)
batteries are dying
84.

As the _________ of a star increases, luminosity increases.

a)

size

b)

distance

c)

age

d)

composition

85.

The luminosity of a star describes its ______________.

a)

brightness

b)

temperature

c)

age

d)

color

86.
The teacher gave Carly a list of four stars of different colors. Carly used the graph shown above to help compare the stars’ luminosity.
Which star would have the highest luminosty? 
a)
White
b)
Red
c)
Blue
d)
Yellow
87.
The teacher gave Carly a list of four stars of different colors. Carly used the graph shown above to help compare the stars’ luminosity. 
Based on the graph a star of whoich color most likely has the lowest luminosity? 
a)
Red
b)
Blue
c)
Yellow
d)
White
88.
Which property of a star is the brightness of a star at a standard distance?
a)
Apparent (magnitude) brightness
b)
Absolute (magnitude) brightness
c)
Luminosity
d)
Size of the star
89.

Which celestial body above is most likely to have the highest surface temperature?

a)

A

b)

B

c)

C

d)

D

90.

Which of the following stellar spectral classes has the highest surface temperature?

a)

O

b)

A

c)

F

d)

K

91.

Is the star marked X belong to the main sequence stars?

a)

True

b)

False

92.

Which pair is most likely to have stars with approximately equal radii?

a)

A

b)

B

c)

C

d)

D

e)

It is impossible to compare stellar radii using a H–R diagram.

93.

What kind of star has the longest lifespan?

a)

A very massive star, like a blue giant

b)

An average sized star, like our Sun

c)

A star with low mass, like a red dwarf

94.

Which of the following give off infrared radiation?

a)

people

b)

light bulbs

c)

stars

d)

a heated / glowing stovetop burner

95.
  The table above compiles information about the distance of various stars from Earth, their apparent magnitude, and their absolute magnitude. 
Which star has the greatest luminosity?
a)
Sirius
b)
Rigel
c)
Arcturus
d)
Aldebaran
96.
The table above compiles information about the distance of various stars from Earth, their apparent magnitude, and their absolute magnitude.
Which star shines brightest as seen from Earth?
a)
Sirius
b)
Rigel
c)
Vega
d)
Betelgeuse 
97.
The teacher gave Carly a list of four stars of different colors. Carly used the graph shown above to help compare the stars’ luminosity. 
Based on the graph a star of whoich color most likely has the lowest luminosity? 
a)
Red
b)
Blue
c)
Yellow
d)
White
98.
The teacher gave Carly a list of four stars of different colors. Carly used the graph shown above to help compare the stars’ luminosity.
Which star would have the highest luminosty? 
a)
White
b)
Red
c)
Blue
d)
Yellow
99.
The teacher gave Carly a list of four stars of different colors. Carly used the graph shown above to help compare the stars’ luminosity. 
Which star is going to have the highest temperature? 
a)
Yellow
b)
White
c)
Red
d)
Blue
100.
Felix examined several photos of stars. To compare their temperatures, he looked at the colors of the stars. He organized the photos in order from coolest to hottest. Which of these answers shows the correct order? 
a)
red, yellow, white, blue
b)
blue, yellow, white, red
c)
yellow, white, blue, red
d)
white, blue, yellow, red
101.
Gamma rays, visible light, and radio waves are part of the electromagnetic spectrum. The figure above compares these three types of electromagnetic waves.  What three properties of these waves are shown in this figure?  
a)
wavelength, frequency, and energy
b)
refraction, wavelength, and frequency
c)
energy, reflection, and wavelength
d)
frequency, visibility, and wavelength
102.
How are we able to detect different colors in the visible light spectrum? 
a)
Temperature
b)
Distance
c)
Wavelength
d)
Reflection 
103.
Based on the HR diagram above, how would we describe our sun? 
a)
Blue/ 30,000K
b)
Red/ 3,500K
c)
White/ 20,000K
d)
Yellow/ 6,000K
104.
Based on the chart above, which Star would appear the dimmest when observed from Earth? 
a)
Sirius
b)
Rigel
c)
Arcturus
d)
Alderbaran
105.
Based on the chart above, which Star has the lowest luminosity? 
a)
Sirius
b)
Rigel
c)
Arcturus
d)
Alderbaran
106.

Stars are made of mostly which two gases?

a)

Hydrogen and Helium

b)

Hydrogen and Oxygen

c)

Hydrogen and Nitrogen

d)

Hydrogen and Carbon

107.

Stars give off heat and light in a process called ___________.

a)

nuclear fusion

b)

supernova

c)

luminosity

d)

spectroscopy

108.

In the process of nuclear fusion, hydrogen atoms combine to form ___________ atoms.

a)

helium

b)

carbon

c)

nitrogen

d)

oxygen

109.

Billions of stars are held together in groups called __________.

a)

galaxies

b)

solar systems

c)

planets

d)

comets

110.

Our Sun is part of which galaxy?

a)

Milky Way

b)

Andromeda

c)

Sombrero

d)

Whirlpool

111.

The luminosity of a star describes its ______________.

a)

brightness

b)

temperature

c)

age

d)

color

112.

As the _________ of a star increases, luminosity increases.

a)

size

b)

distance

c)

age

d)

composition

113.

What color are the coolest stars?

a)

red

b)

blue

c)

white

d)

orange

114.

What color are the hottest stars?

a)

blue

b)

red

c)

white

d)

yellow

115.

The types of gases that make up a star is also known as the star's _______________.

a)

composition

b)

temperature

c)

size

d)

luminosity

116.

Describe the difference between luminosity and magnitude.

a)

Luminosity measures energy, magnitude measures brightness

b)

Luminosity measures brightness, magnitude measures energy

c)

Luminosity measures distance, magnitude measures time

d)

Luminosity measures time, magnitude measures distance

117.

Stars that are further away...

a)

Will be more blueshifted

b)

Will display less parallax

c)

Will always appear dimmer

d)

Will have a greater magnitude

118.

very large star of high luminosity and low surface temperature, thought to be in a late stage of evolution when no hydrogen remains in the core to fuel nuclear fusion.

a)

nuclear fusion

b)

main sequence star

c)

core collapse

d)

red giant

119.

extremely large red giant star with a minimum of 15 solar masses. The best known red supergiant is Betelgeuse, with a luminosity about 10,000 times that of the Sun.

a)

super redgiant

b)

main sequence star

c)

supernova

d)

neutron star

120.

the intrinsic brightness of a celestial object

a)

mass

b)

gravity

c)

luminosity

d)

stars

121.

Which star has a surface temperature most similar to the surface temperature of Alpha Centauri?

a)

Polaris

b)

Betelgeuse

c)

Procyon B

d)

Sirius

122.

Which star is hotter, but less luminous, than Polaris?

a)

Deneb

b)

Aldebaran

c)

Sirius

d)

Pollux

123.

Which two stars are most similar in luminosity?

a)

Betelgeuse and Barnard's Star

b)

Procyon B and Proxima Centauri

c)

Polaris and the Sun

d)

Alpha Centauri and Sirius

124.

Compared the the Sun, the star Betelgeuse is

a)

less luminous and warmer

b)

less luminous and cooler

c)

more luminous and warmer

d)

more luminous and cooler

125.

Which of the following are characteristic of the surface temperature and luminosity of some white dwarf stars?

a)

Surface Temperature: 5,000 K Luminosity: 100

b)

Surface Temperature: 5,000 K Luminosity: 0.001

c)

Surface Temperature: 10,000 K Luminosity: 100

d)

Surface Temperature: 10,000 K Luminosity: 0.001

126.

Which star is more massive than our Sun but has a lower surface temperature?

a)

40 Eridani B

b)

Sirius

c)

Aldebaran

d)

Barnard's Star

127.

For other stars in our galaxy that go through a similar life cycle to our Sun, which star is currently in the late stage of its life cycle?

a)

Alpha Centauri

b)

Procyon B

c)

Bernard's Star

d)

Polaris

128.

Shows the relationship between luminosity and temperature in a star.

a)

HR (Hertzsprung - Russell) Diagram

b)

Color vs. Brightness chart

c)

Temperature vs. Luminosity chart

d)

Stellar life cycle chart

129.

Shows the relationship between luminosity and temperature in a star.

a)

HR (Hertzsprung - Russell) Diagram

b)

Color vs. Brightness chart

c)

Temperature vs. Luminosity chart

d)

Stellar life cycle chart

130.
Main Sequence
a)
Binary Star
b)
Parsec
c)
the brightness that a star would have at a distance of 32.6 light-years from Earth
d)
the location on the H-R diagram where most stars lie
131.
Parsec
a)
the brightness of a star as seen from Earth have at a distance of 32.6 light-years from Earth Luminosity The actual brightness of a star
b)
A unit of distance that is equal to 3.26 light years
c)
the brightness that a star would have at a distance of 32.6 light-years from Earth
d)
The actual brightness of a star
132.

Apparent Magnitude

a)

the brightness of a star as seen from Earth have at a distance of 32.6 light-years from Earth Luminosity The actual brightness of a star

b)

the brightness that a star would have at a distance of 32.6 light-years from Earth

c)

the location on the H-R diagram where most stars lie

d)

the brightness of a star as seen from Earth

133.
Luminosity
a)
the brightness of a star as seen from Earth have at a distance of 32.6 light-years from Earth Luminosity The actual brightness of a star
b)
the brightness that a star would have at a distance of 32.6 light-years from Earth
c)
The actual brightness of a star
d)
the location on the H-R diagram where most stars lie
134.
Wavelength
a)
Luminosity
b)
the distance between successive crests, especially points in a sound or electromagnetic
c)
Parsec
d)
A unit of distance that is equal to 3.26 light years
135.

A star in a galaxy has a surface temperature of 8,000 K and a luminosity of 10. Identify the stage and color of this star.

a)

Super Giant and White

b)

Main Sequence and Red

c)

White Dwarf and White

d)

Main Sequence and White

136.
The category that contains the most stars is...
a)
Main Sequence
b)
Supergiants
c)
Giants
137.
Which category is our Sun located in?
a)
White Dwarfs
b)
Supergiants
c)
Main Sequence
d)
Giants
138.
Compared to the rest of the stars, our sun is considered...
a)
Extremely Large and Cold
b)
Small with a medium temperature
c)
Medium size with medium temperature
139.

Compared to our Sun, the star Betelgeuse is

a)

smaller, hotter, and less luminous

b)

smaller, cooler, and more luminous

c)

larger, hotter, and less luminous

d)

larger, cooler, and more luminous

140.

Which star color indicates the hottest star surface temperature?

a)

Blue

b)

White

c)

Yellow

d)

Red

141.
He defined the brightnesses of stars (made a scale) & discovered the wobble of the Earth's axis
a)
Claudius Ptolemy
b)
Hipparchus
c)
Tycho Brahe
d)
Giovanni Cassini
142.

Which might change, depending on the distance to a star?

a)

absolute magnitude

b)

apparent magnitude

c)

compostion

d)

luminosity

143.

Which star on the graph has the greatest apparent magnitude?

a)

Polaris

b)

Proxima Centauri

c)

Sirius

d)

the Sun

144.

The brightness of a star as seen from earth

a)

Apparent magnitude

b)

Awesome magnitude

c)

Absolute magnitude

d)

Amazing magnitude

145.
The absolute brightness of a star depends on its
a)
distance and temperature.
b)
size and temperature.
c)
color and temperature.
d)
distance and color.
146.

As the frequency of a wave increases, how does the wavelength change?

a)

increases

b)

decreases

c)

It does not change.

d)

There is not enough information to answer this question.

147.

Which of the following types of electromagnetic radiation travels the slowest?

a)

Gamma Rays

b)

Radio Waves

c)

Visible Light

d)

They all travel at the same speed.

148.

Which of the following is the speed of light when traveling through space?

a)

3 x 1083\ x\ 10^8   m/s

b)

300, 000 km/s

c)

3 x 1053\ x\ 10^5  km/s

d)

All of these answers are correct.

149.

A wave has a frequency of 50Hz and a wavelength of 10m. How fast is the wave traveling?

a)

50 m/s

b)

5 m/s

c)

500 m/s

d)

5000 m/s

150.

A wave has a wavelength of 10 m and a speed of 340 m/s. What is its frequency?

a)

34 Hz

b)

3400 Hz

c)

34 m

d)

3400 m

151.

What is the wavelength of an electromagnetic wave with a frequency of 3.76 x 10143.76\ x\ 10^{14}  Hz?

a)

1.25 x 106 1.25\ x\ 10^{6\ }  meters

b)

3 x 1083\ x\ 10^8  meters

c)

1.13 x 1023 1.13\ x\ 10^{23\ }  meters

d)

7.98 x 10−77.98\ x\ 10^{-7}  meters

152.

How would you write 137840000 in scientific notation?

a)

1.3784 x 1081.3784\ x\ 10^8  

b)

13.784 x 10713.784\ x\ 10^7  

c)

1.3784 x 10−81.3784\ x\ 10^{-8}  

d)

13.784 x 10−713.784\ x\ 10^{-7}  

153.

Write 7.89 x 10−47.89\ x\ 10^{-4}  in standard notation.

a)

.0000789

b)

7890000

c)

.000789

d)

78900

154.

In minutes, how long does it take light to reach Earth from the Sun?

a)

100

b)

8

c)

1

d)

80

155.

What is the speed of light in kilometers per second?

a)

3 x 1083\ x\ 10^8  

b)

3000

c)

3 x 10113\ x\ 10^{11}  

d)

300,000

156.

If the plane of the Milky Way Galaxy is about 100,000 light years across, how long would it take for light to travel from one end of the galaxy to the other?

a)

100 years

b)

1000 years

c)

100,000 years

d)

1 million years

157.

The fastest spacecraft made by humans so far is the Parker Solar Probe, which has reached a speed of 430,000 miles per hour. At this speed, how long would it take for the spacecraft to go from one end of the Milky Way Galaxy to the other if the plane of the galaxy is 100,000 light years across?

a)

100,000 years

b)

over 150 million years

c)

15 years

d)

1 year

158.

The fastest spacecraft to ever carry humans was the Apollo 10 vehicle. It reached a speed of about 25,000 miles per hour. At this speed, how long would it take people to get to Proxima Centauri, which is about 4 light years away?

a)

235 years

b)

39, 193, 333 years

c)

107, 379 years

d)

940,640,000 years

159.

If Mars is about 70 million miles away from Earth and you sent a laser pulse there, how long would it take the photons to reach the surface of the planet?

a)

6 minutes

b)

5 months

c)

2 minutes

d)

3 days

160.

Saturn is about 1.42 x 10141.42\ x\ 10^{14}  cm away from the Sun. How long would it take for my favorite song playing on the radio right now to reach my alien buddy on Saturn?

a)

about an hour

b)

a few minutes

c)

they can hear it right now

d)

it will take years

161.

Polaris is about 323 light years away from Earth. How many days would it take for light from the North Star to reach us?

a)

118 million

b)

118,000

c)

118

d)

18

162.

When light passes through a prism, each wavelength bends a different amount so that we can see the different colors at different wavelengths. This is called...

a)

resolution

b)

reflection

c)

refraction

d)

interference

163.

Which type of spectrum is a rainbow with black lines where specific wavelengths are missing?

a)

continuous

b)

emission

c)

absorption

164.

Which type of spectrum is mostly dark with only colored lines at specific wavelengths where light is emitted?

a)

continuous

b)

emission

c)

absorption

165.

When the wavelengths of an observed astronomical object appear to be longer than they really are, we say that the object's light has been...

a)

redshifted

b)

blueshifted

166.

When an object's light has been redshifted, it must be...

a)

moving away from us

b)

moving towards us

167.

Most objects in the universe are...

a)

moving away from us

b)

moving towards us

c)

are not moving compared to us

168.

The light from most galaxies appears to be...

a)

blueshifted

b)

redshifted

169.

The farther away the galaxy, the more its light has been redshifted. This means that the farther away a galaxy is from us, the __________ it is moving away.

a)

faster

b)

slower

170.

When we look out into the universe, most astronomical objects are moving away from us and the farther away they are, the faster they are moving. This tells us that the universe is...

a)

getting smaller (contracting)

b)

getting larger (expanding)

171.

What is the highest point on a wave called?

a)

Crest

b)

Trough

c)

Wavelength

d)

Frequency

172.

What is the lowest point on a wave called?

a)

Crest

b)

Trough

c)

Wavelength

d)

Frequency

173.

What is the distance between two adjacent crests or troughs on a wave called?

a)

Crest

b)

Trough

c)

Wavelength

d)

Frequency

174.

What is the number of waves that pass a point in a given time period called?

a)

Crest

b)

Trough

c)

Wavelength

d)

Frequency

175.

What speed do electromagnetic waves travel at?

a)

30 kilometers per second

b)

3 meters per second

c)

300 meters per second

d)

300,000 kilometers per second

176.

EM Waves are everywhere?

a)

True

b)

False

177.

Which EM wave has the longest wavelength?

a)

Visible Light

b)

Gamma Rays

c)

Radio Waves

d)

Microwaves

178.

What waves are used to transmit signals to radio and tv stations?

a)

UV rays

b)

Infrared Waves

c)

X-rays

d)

Radio Waves

179.

This EM Wave is often used in medical imaging.

a)

Microwaves

b)

X-Rays

c)

Gamma rays

d)

Infrared waves

180.

This EM Wave is responsible for the warmth you feel.

a)

UV Rays

b)

Microwaves

c)

Gamma Rays

d)

Infrared Waves

181.

This EM Wave has the shortest wavelength, highest frequencies, and highest energy.

a)

Gamma Ray

b)

Visible Light

c)

Microwaves

d)

UV Rays

182.

Prolonged exposure to this EM Wave can damage human tissue.

a)

Gamma Rays

b)

Microwaves

c)

X-Rays

d)

Radio Waves

183.

Which EM wave does NOT damage living tissue?

a)

X-Rays

b)

Gamma Rays

c)

Ultraviolet Rays

d)

Radio Waves

184.

This is the electromagnetic radiation that can be detected by your eyes.

a)

Radio Waves

b)

Visible Light

c)

UV Rays

d)

X-Rays

185.

Which color on the visible spectrum has the shortest wavelength?

a)

Yellow

b)

White

c)

Red

d)

Violet

186.

Which color on the visible spectrum has the longest wavelength?

a)

Yellow

b)

White

c)

Red

d)

Violet

187.

This EM Wave can be used for cell phones and to cook food quickly.

a)

Frequency

b)

Microwaves

c)

UV Rays

d)

Infrared Waves

188.

Which of the following below list the EM Waves in order from the longest wavelength to shortest wavelength?

a)

Radio, Infrared, Microwaves

b)

Radio, UV Rays, Microwaves

c)

Radio, Microwaves, Infrared

d)

Radio, X-Rays, Microwaves

189.

If a EM Wave has a long wavelength, it has what kind of energy?

a)

low energy

b)

high energy

c)

medium energy

d)

no energy

190.

If a EM Wave has a long wavelength, it has what kind of frequency?

a)

no frequency

b)

high frequency

c)

medium frequency

d)

low frequency

191.

The portion of the electromagnetic spectrum that humans can see is called:

a)

radio waves

b)

visible light

c)

gamma rays

d)

x-rays

192.

Which has a longer wavelength?

a)

infrared

b)

ultraviolet

193.

Which is can be felt as "heat"?

a)

gamma rays

b)

infrared

c)

x-ray

d)

blue light

194.

Which of the following types of EMR is used to send a signal from a TV remote control device to change the channel on a TV?

a)

radio waves

b)

microwaves

c)

infrared

d)

X-ray

195.

All electromagnetic waves travel through space at the same speed.

a)

True

b)

False

196.

The electromagnetic spectrum from long wavelength to short.

a)

gamma, xray, ultraviolet, visible light, infrared, microwaves, radio

b)

radio, visible, microwaves, infrared, ultraviolet,x ray, gamma

c)

radio, microwave, infrared, visible, ultraviolet, xray, gamma

d)

gamma,radio, microwave,infrared, visible, ultraviolet, xray

197.

On this diagram of a wave, which end shows the SHORTEST wavelength?

a)

Left

b)

Right

c)

Middle

198.

Which type of radiation causes sunburns?

a)

Xrays

b)

Ultraviolet

c)

visible light

d)

gamma rays

199.

This type of radiation can help heat up food and can be found in cellphones

a)

microwaves

b)

UV

c)

Infrared

d)

gamma

200.

What is TRUE about Gamma Ray Waves? (choose two)

a)

used for treating certain types of cancer

b)

are very safe

c)

can be very dangerous

d)

used for cooking food

201.

What is TRUE about Infrared Waves? (choose two)

a)

used for treating certain types of cancer

b)

used for our tv remotes

c)

have very high energy

d)

used for thermal (heat) imaging

202.

Which type of wave can detect broken bones?

a)

radio waves

b)

gamma ray waves

c)

x-ray waves

d)

visible light waves

203.

Waves that can be the size of a skyscraper.

a)

Radio

b)

Visible

c)

Ultra violet

d)

x rays

204.

Waves that can kill bacteria on hospital equipment.

a)

Radio

b)

Visible

c)

Ultra violet

d)

x rays

205.

Waves that can kill cancer cells.

a)

Radio

b)

Visible

c)

Gamma

d)

x rays

206.

As white light travels through a prism

a)

All the colors of the rainbow are seen

b)

Only red and purple are seen

c)

White light is absorbed

d)

White light is refracted

207.

Colors of white light low frequency to high

a)

red, orange, yellow, green, blue, indigo, violet

b)

violet, indigo, blue, green, yellow, orange, red.

c)

indigo, blue, red, orange, yellow, green, violet

d)

red, yellow, orange,green,blue,indigo,violet

208.

As wavelength gets longer...

a)

Frequency increases

b)

Frequency decreases

209.

As wavelength gets smaller..

a)

Frequency and energy increases

b)

Frequency and energy decreases

210.

Which of the following options best compares and contrasts electromagnetic radiation?

a)

Each type of electromagnetic radiation has different frequencies but each have similar energy.

b)

Each type of electromagnetic radiation has a different wavelengths but have similar frequencies.

c)

Each type of electromagnetic radiation travels at the same speed but have different wavelengths.

d)

Each type of electromagnetic radiation travels at different speeds but have different wavelengths.

211.
The distance between one point of a wave to the same point on the next wave.
a)
frequency
b)
wavelength
c)
amplitude
d)
crest
212.

The full range of frequencies of electromagnetic radiation is called

a)

visible light.

b)

radio waves.

c)

the electromagnetic spectrum.

d)

invisible radiation.

213.

Electromagnetic waves vary in

a)

the speed they travel in a vacuum.

b)

wavelength and frequency.

c)

the way they reflect.

d)

the orientation of their electric and magnetic fields.

214.

Which type of radiation causes sunburns?

a)

Xrays

b)

Ultraviolet

c)

visible light

d)

gamma rays

215.

What is TRUE about Gamma Ray Waves? (choose two)

a)

used for treating certain types of cancer

b)

are very safe

c)

can be very dangerous

d)

used for cooking food

216.

What is TRUE about Infrared Waves? (choose two)

a)

used for treating certain types of cancer

b)

used for our tv remotes

c)

have very high energy

d)

used for thermal (heat) imaging

217.
What are the units of frequency?
a)
m/s
b)
s
c)
Hz
d)
m
218.

Which wave has a greater frequency?

a)

A

b)

B

219.
High frequency waves have _________ wavelengths.
a)
varying
b)
long
c)
the same
d)
short
220.
Look carefully at the waves.  Which carries the most energy?
a)
microwave
b)
infrared
c)
ultraviolet
d)
x-ray
221.
Which type of wave has the highest frequency?
a)
gamma ray
b)
x ray
c)
infrared
d)
radio waves
222.
Light is a form of 
a)
energy
b)
radiation
c)
reflection
223.
Which color has the longest wavelength?
a)
red
b)
orange
c)
blue
d)
violet
224.
What does refract mean?
a)
To shrink
b)
To bend
c)
To widen
d)
To enlarge
225.

Calculate the wavelength of light that has a frequency of 5.2 x 1012/s.

a)

5.8 x 10 -5 m

b)

5.8 x 10 -7 m

c)

5.19 x 10 14 m

d)

1.56 x 10 23 m

226.

A microwave oven emits radiation at a wavelength of 0.00500 m. What is the frequency of this radiation?

a)

6.67 x 10-7 Hz

b)

2.00 Hz

c)

1.50 x 106 Hz

d)

6.00 x 1010 Hz

227.

If an AM radio station broadcasts at

9.95 x 105 Hz, what is the wavelength of this radiation?

a)

6.59 x 10-28 m

b)

1.01 x 10-6 m

c)

3.32 x 10-3 m

d)

302 m

228.

When you go out in the sunshine, ultraviolet light rays may give you a tan or a sunburn. What is the wavelength of this light if it has a frequency of

7.74 X 1014 Hz?

a)

3.88 x 10-7 m

b)

3.26 x 10-2 m

c)

2.58 x 106 m

d)

2.32 x 1023 m

229.

IRAS, the Infrared Astronomy Satellite launched by NASA in 1983, had a detector that measured infrared or heat radiation from different regions of space. What is the frequency of infrared light that has a wavelength of

1.10 X 10-6 m?

a)

3.67 x 10-15 Hz

b)

3.67 x 10-3 Hz

c)

2.73 x 102 Hz

d)

2.73 x 1014 Hz

230.

A particular light source gives off light waves with a measured wavelength of

2.0 x 10-7 m. What is the frequency of the light source?

a)

6.67 x 10-15 Hz

b)

6.0 x 1011 Hz

c)

1.5 x 1015 Hz

d)

not enough information to answer

231.
Which wave has the largest wavelength?
a)
A
b)
B
c)
C
d)
None (same wavelength)
232.
Which wave has the largest frequency?
a)
A
b)
B
c)
C
d)
None (same frequency)
233.

What does a wave carry from place to place?

a)

energy

b)

matter

c)

people

234.

The highest point on a transverse wave is the

a)

compression

b)

crest

c)

rest position

d)

trough

235.

The lowest point on a transverse wave is the

a)

compression

b)

crest

c)

rest position

d)

trough

236.

The number of waves that pass somewhere in a second is:

a)

amplitude

b)

frequency

c)

wavelength

237.

Unit used to measure the frequency of wavelengths.

a)

Amplitude

b)

Hertz

c)

Joule

d)

Engergy

238.
Velocity= ________
Wavelength= .5m
Frequency= 150 hertz
a)
.75 m/s
b)
75 m/s
c)
300 m/s
239.
Velocity= ________
Wavelength= 1.2 m
Frequency= 210 hertz
a)
175 m/s
b)
252 hertz
c)
252 m/s
240.
Velocity= _________
Wavelength= 3.0 m
Frequency= 120 hertz
a)
40 m/s
b)
360 m/s
c)
0.025 hertz
241.
Velocity= 12 m/s
Wavelength= __________
Frequency= 600 hertz
a)
7200 m
b)
0.02 m
c)
612 m
242.
Velocity= ________
Wavelength= 1.2 m
Frequency= 210 hertz
a)
175 m/s
b)
252 hertz
c)
252 m/s
243.

Which wave has the most energy?

a)

Wave 1

b)

Wave 2

c)

Wave 3

d)

Wave 4

244.

Identify B

a)

Wavelength

b)

Crest

c)

Amplitude

d)

Trough

245.

Find the frequency of an electromagnetic wave with a wavelength 2.75 × 10–8 m.

a)

1.10 Hz

b)

1.09 × 1016 Hz

c)

9.17 × 1015 Hz

d)

9.17 × 1016 Hz

246.

What is the variable c used for?

a)

frequency

b)

wavelength

c)

Energy

d)

speed of light

247.

What is the variable λ used for?

a)

frequency

b)

wavelength

c)

Energy

d)

speed of light

248.

When bombarded with light, lithium emits a light with a frequency of 4.29 x 1014 Hz. Calculate the wavelength and use the chart to predict the color.

a)

blue

b)

green

c)

yellow

d)

red

249.

Which wave has a greater frequency?

a)

A

b)

B

250.

How are frequency and wavelength related?

a)

As frequency increases, wavelength gets shorter

b)

As frequency increases, wavelength gets longer

c)

As frequency increases, wavelength gets lower

d)

As frequency increases, wavelength gets higher

251.

Six waves go past a fixed point in two seconds. What is the frequency of the wave?

a)

3

b)

6 Hz

c)

3 Hz

d)

2

252.
The unit of frequency is ___.
a)
meters
b)
nanometers (nm)
c)
m/s
d)
Hertz
253.
Look carefully at the waves.  Which carries the most energy?
a)
microwave
b)
infrared
c)
ultraviolet
d)
x-ray
254.

Find the frequency of an electromagnetic wave with a wavelength 2.75 × 10–8 m.

a)

1.10 Hz

b)

1.09 × 1016 Hz

c)

9.17 × 1015 Hz

d)

9.17 × 1016 Hz

255.

Which of the following electromagnetic waves travels the fastest?

a)

gamma rays

b)

radio waves

c)

ultraviolet waves

d)

they all travel the same speed

256.
Which letter(s) represent the trough of the wave?
a)
A
b)
B & D
c)
D
d)
C & G
257.
Which vocabulary term is used to identify the distance between points C & G?
a)
Amplitude
b)
Crest
c)
Frequency
d)
Wavelength
258.
Which letter(s) represent the crest of the wave?
a)
A
b)
B & D
c)
B & F
d)
F
259.
Which of the following regions of the electromagnetic spectrum has the longest wavelengths?
a)
microwave
b)
infrared
c)
x-ray
d)
gamma ray
260.
Which of the following colors of visible light has the longest wavelength?
a)
orange
b)
blue
c)
red
d)
green
261.
Which of the following regions of the electromagnetic spectrum has the lowest frequency?
a)
ultraviolet
b)
infrared
c)
visible
d)
x-ray
262.
How much of the electromagnetic spectrum is visible?
a)
All of it
b)
None of it
c)
Most of it
d)
Only a small part
263.

The relationship between wavelength and frequency is c=fλ.  Calculate the wavelength of light that has a frequency of 5.2 x 1012 Hz. The speed of of light is 3.0x 108 m/s.

a)

5.8 x 10 -5 m

b)

5.8 x 10 -7 m

c)

5.19 x 10 14 m

d)

1.56 x 10 23 m

264.

Solve this problems using the equation:  c = fλ If an AM radio station broadcasts at 9.95 x 105 Hz, what is the wavelength of this radiation?

a)

6.59 x 10-28 m

b)

1.01 x 10-6 m

c)

3.32 x 10-3 m

d)

302 m

265.

What is the variable ƒ used for?

a)

frequency

b)

wavelength

c)

Energy

d)

speed of light

266.

The frequency of light is 7.14 x 1014 Hz. What is the wavelength?

a)

3.00 x 108 m

b)

4.20 x 10-7 m

c)

2.25 x 1023 m

d)

3.90 x 10-9 m

267.

What is the frequency of ultraviolet light with a wavelength of 1.24 x 10-7 m?

a)

2.42 x 1015 Hz

b)

8.22 x 10-34 Hz

c)

3.00 x 108 Hz

d)

1.04 x 1013 Hz

268.

What is the frequency of infrared light with a wavelength of 1.05 x 10-6 m?

a)

6.96 x 10-40 Hz

b)

2.86 x 1014 Hz

c)

9.62 x 10-13 Hz

d)

2.55 x 10-19 Hz

269.

A violet spectral line of an element has a wavelength of 4.2 x 10-7 m. What is the frequency of the violet light?

a)

3.00 x 108 Hz

b)

6.63 x 10-34 Hz

c)

7.14 x 1014 Hz

d)

1.04 x 10-13 Hz

270.

Electromagnetic waves vary in

a)

the speed they travel in a vacuum

b)

wavelength and frequency

c)

the way they reflect

d)

the orientation of their electric and magnetic fields

271.

To calculate the frequency of an electromagnetic wave, you need to know the speed of the wave and its

a)

wavelength

b)

refraction

c)

intensity

d)

amplitude

272.

Infrared rays have a shorter wavelength than

a)

Ultraviolet ray

b)

X-rays

c)

gamma rays

d)

radio waves

273.

Which wave has a longer wavelength?

a)

wave C

b)

wave D

274.

Which wave has a greater frequency?

a)

wave B

b)

wave C

275.

How would you write 0.0005 in scientific notation?

a)

50 x 10-5

b)

5 x 10-4

c)

5 x 103

d)

.5 x 103

276.

Which of the following numbers is written in scientific notation?

a)

20.35 x 104

b)

.2035 x 104

c)

2035 4

d)

2.035 x104

277.

Express the following in scientific notation:


.000457

a)

457 x 106

b)

457 x 10-6

c)

4.57 x104

d)

4.57 x 10-4

278.

Convert to scientific notation:


520,000,000

a)

52 x 107

b)

5.2 x 10-7

c)

5.2 x 108

d)

0.52 x 109

279.

If the exponent is a positive number the original number was...

a)

a really big number.

b)

a really small number.

280.

If the exponent is a negative number the original number was...

a)

a really large number.

b)

a really small number.

281.

Convert this number into scientific notation:


0.068

a)

6.9 x 106

b)

6.8 x 10-9

c)

6.8 x 10-2

d)

None of the above

282.

Convert this number into scientific notation:


950,000

a)

9.5 x 105

b)

9.5 x 10-9

c)

9.5 x 102

d)

None of the above

283.

Which value is the greatest?

a)

5.0 x 10-9

b)

5.0 x 10-4

c)

5.0 x 106

d)

5.0 x 108

284.

Which number is the least in value?

a)

5.0 x 10-9

b)

5.0 x 10-4

c)

5.0 x 106

d)

5.0 x 108

285.
7.82 x 10-6 is an example of scientific notation. The exponent of -6 tells you your number will be very ________.
a)
Large
b)
Small
c)
Basic
286.
Change from standard form to scientific notation: 12,000,000
a)
12.0  x  107
b)
0.12  x  107
c)
1.2  x  106
d)
1.2  x  107
287.

The ____________ refers to an imaginary sphere of heavenly objects that seems to center on the observer.

a)

Constellation

b)

Celestial Sphere

c)

North Pole

d)

South Pole

288.

The apparent shifting of nearby objects with respect to distant ones as the position of the observer changes is called:

a)

Peristalsis

b)

Ex-Lax

c)

Periscope

d)

Parallax

289.

The first person to use a telescope to study the sky was __________.

a)

Ptolemy

b)

Kepler

c)

Galileo

d)

Aristotle

290.

The two most famous believers of the geocentric model of the universe were:

a)

Orville and Wilbur Wright

b)

Kepler and Tycho Brahe

c)

Copernicus and Galileo

d)

Aristotle and Ptolemy

291.

What did Galileo discover about the surface of the moon when he saw it through his telescope?

a)

It had craters and mountains

b)

It was smooth

c)

It was all water

d)

It was made of cheese

292.

Kepler's 1st Law of Planetary Motion states that each planet's path around the Sun is in the shape of a/an:

a)

Ellipse

b)

Ecliptic

c)

Circle

d)

Rhombus

293.

Ptolemy hypothesized that planets travel in circular orbits centered around the Earth. He called these circular orbits __________.

a)

Ellipses

b)

Epicenters

c)

Epicycles

d)

Epic Cycles

294.

While observing the planet Venus through his telescope, Galileo observed that it changed size and shape over a period of months. What conclusion did this help him come to?

a)

The Earth is round

b)

The Sun goes around the Earth

c)

Venus goes around the Sun

d)

Venus has four moons

295.

Geocentric models place the _______ at the center of the universe?

a)

Sun

b)

Moon

c)

Earth

d)

Stars

296.

________________ developed three laws of planetary motion.

a)

Tycho Brahe

b)

Aristotle

c)

Johannes Kepler

d)

Galileo Galilei

297.

Copernicus theorized that the stars do not actually move across the sky each night. That is an illusion created by what?

a)

Parallax

b)

The Zodiac

c)

The Sun revolving around the Earth

d)

The rotation of the earth

298.

The second law of planetary motion has to do with the changing speeds of planets. As a planet gets closer to the sun it _________, and as it gets further away from the sun it _____________.

a)

Speeds up, maintains constant speed

b)

Speeds up, slows down

c)

Slows down, speeds up

d)

Slows down, maintains constant speed

299.

What is the name for the group of constellations the Sun passes through on its apparent path along the ecliptic?

a)

Galaxies

b)

The Zodiac

c)

Jupiter

d)

The Ecliptic

300.

Kepler’s third law of planetary motion implied that __________ holds the planets near the Sun.

a)

Gravity

b)

The Force

c)

Magnets

d)

Inertia

301.
What are the units of frequency?
a)
m/s
b)
s
c)
Hz
d)
m
302.

Which wave has a greater frequency?

a)

A

b)

B

303.
High frequency waves have _________ wavelengths.
a)
varying
b)
long
c)
the same
d)
short
304.
Look carefully at the waves.  Which carries the most energy?
a)
microwave
b)
infrared
c)
ultraviolet
d)
x-ray
305.
Which type of wave has the highest frequency?
a)
gamma ray
b)
x ray
c)
infrared
d)
radio waves
306.
Light is a form of 
a)
energy
b)
radiation
c)
reflection
307.
Which color has the longest wavelength?
a)
red
b)
orange
c)
blue
d)
violet
308.
What does refract mean?
a)
To shrink
b)
To bend
c)
To widen
d)
To enlarge
309.

Calculate the wavelength of light that has a frequency of 5.2 x 1012/s.

a)

5.8 x 10 -5 m

b)

5.8 x 10 -7 m

c)

5.19 x 10 14 m

d)

1.56 x 10 23 m

310.

A microwave oven emits radiation at a wavelength of 0.00500 m. What is the frequency of this radiation?

a)

6.67 x 10-7 Hz

b)

2.00 Hz

c)

1.50 x 106 Hz

d)

6.00 x 1010 Hz

311.

If an AM radio station broadcasts at

9.95 x 105 Hz, what is the wavelength of this radiation?

a)

6.59 x 10-28 m

b)

1.01 x 10-6 m

c)

3.32 x 10-3 m

d)

302 m

312.

When you go out in the sunshine, ultraviolet light rays may give you a tan or a sunburn. What is the wavelength of this light if it has a frequency of

7.74 X 1014 Hz?

a)

3.88 x 10-7 m

b)

3.26 x 10-2 m

c)

2.58 x 106 m

d)

2.32 x 1023 m

313.

IRAS, the Infrared Astronomy Satellite launched by NASA in 1983, had a detector that measured infrared or heat radiation from different regions of space. What is the frequency of infrared light that has a wavelength of

1.10 X 10-6 m?

a)

3.67 x 10-15 Hz

b)

3.67 x 10-3 Hz

c)

2.73 x 102 Hz

d)

2.73 x 1014 Hz

314.

A particular light source gives off light waves with a measured wavelength of

2.0 x 10-7 m. What is the frequency of the light source?

a)

6.67 x 10-15 Hz

b)

6.0 x 1011 Hz

c)

1.5 x 1015 Hz

d)

not enough information to answer

315.
Which wave has the largest wavelength?
a)
A
b)
B
c)
C
d)
None (same wavelength)
316.
Which wave has the largest frequency?
a)
A
b)
B
c)
C
d)
None (same frequency)
317.

What does a wave carry from place to place?

a)

energy

b)

matter

c)

people

318.

The highest point on a transverse wave is the

a)

compression

b)

crest

c)

rest position

d)

trough

319.

The lowest point on a transverse wave is the

a)

compression

b)

crest

c)

rest position

d)

trough

320.

The number of waves that pass somewhere in a second is:

a)

amplitude

b)

frequency

c)

wavelength

321.

Unit used to measure the frequency of wavelengths.

a)

Amplitude

b)

Hertz

c)

Joule

d)

Engergy

322.
Velocity= ________
Wavelength= .5m
Frequency= 150 hertz
a)
.75 m/s
b)
75 m/s
c)
300 m/s
323.
Velocity= ________
Wavelength= 1.2 m
Frequency= 210 hertz
a)
175 m/s
b)
252 hertz
c)
252 m/s
324.
Velocity= _________
Wavelength= 3.0 m
Frequency= 120 hertz
a)
40 m/s
b)
360 m/s
c)
0.025 hertz
325.
Velocity= 12 m/s
Wavelength= __________
Frequency= 600 hertz
a)
7200 m
b)
0.02 m
c)
612 m
326.
Velocity= ________
Wavelength= 1.2 m
Frequency= 210 hertz
a)
175 m/s
b)
252 hertz
c)
252 m/s
327.

Which wave has the most energy?

a)

Wave 1

b)

Wave 2

c)

Wave 3

d)

Wave 4

328.

Identify B

a)

Wavelength

b)

Crest

c)

Amplitude

d)

Trough

329.

Find the frequency of an electromagnetic wave with a wavelength 2.75 × 10–8 m.

a)

1.10 Hz

b)

1.09 × 1016 Hz

c)

9.17 × 1015 Hz

d)

9.17 × 1016 Hz

330.

What is the variable c used for?

a)

frequency

b)

wavelength

c)

Energy

d)

speed of light

331.

What is the variable λ used for?

a)

frequency

b)

wavelength

c)

Energy

d)

speed of light

332.

When bombarded with light, lithium emits a light with a frequency of 4.29 x 1014 Hz. Calculate the wavelength and use the chart to predict the color.

a)

blue

b)

green

c)

yellow

d)

red

333.

Which wave has a greater frequency?

a)

A

b)

B

334.

How are frequency and wavelength related?

a)

As frequency increases, wavelength gets shorter

b)

As frequency increases, wavelength gets longer

c)

As frequency increases, wavelength gets lower

d)

As frequency increases, wavelength gets higher

335.

Six waves go past a fixed point in two seconds. What is the frequency of the wave?

a)

3

b)

6 Hz

c)

3 Hz

d)

2

336.
The unit of frequency is ___.
a)
meters
b)
nanometers (nm)
c)
m/s
d)
Hertz
337.
Look carefully at the waves.  Which carries the most energy?
a)
microwave
b)
infrared
c)
ultraviolet
d)
x-ray
338.

Find the frequency of an electromagnetic wave with a wavelength 2.75 × 10–8 m.

a)

1.10 Hz

b)

1.09 × 1016 Hz

c)

9.17 × 1015 Hz

d)

9.17 × 1016 Hz

339.

Which of the following electromagnetic waves travels the fastest?

a)

gamma rays

b)

radio waves

c)

ultraviolet waves

d)

they all travel the same speed

340.
Which letter(s) represent the trough of the wave?
a)
A
b)
B & D
c)
D
d)
C & G
341.
Which vocabulary term is used to identify the distance between points C & G?
a)
Amplitude
b)
Crest
c)
Frequency
d)
Wavelength
342.
Which letter(s) represent the crest of the wave?
a)
A
b)
B & D
c)
B & F
d)
F
343.
Which of the following regions of the electromagnetic spectrum has the longest wavelengths?
a)
microwave
b)
infrared
c)
x-ray
d)
gamma ray
344.
Which of the following colors of visible light has the longest wavelength?
a)
orange
b)
blue
c)
red
d)
green
345.
Which of the following regions of the electromagnetic spectrum has the lowest frequency?
a)
ultraviolet
b)
infrared
c)
visible
d)
x-ray
346.
How much of the electromagnetic spectrum is visible?
a)
All of it
b)
None of it
c)
Most of it
d)
Only a small part
347.

The relationship between wavelength and frequency is c=fλ.  Calculate the wavelength of light that has a frequency of 5.2 x 1012 Hz. The speed of of light is 3.0x 108 m/s.

a)

5.8 x 10 -5 m

b)

5.8 x 10 -7 m

c)

5.19 x 10 14 m

d)

1.56 x 10 23 m

348.

Solve this problems using the equation:  c = fλ If an AM radio station broadcasts at 9.95 x 105 Hz, what is the wavelength of this radiation?

a)

6.59 x 10-28 m

b)

1.01 x 10-6 m

c)

3.32 x 10-3 m

d)

302 m

349.

What is the variable ƒ used for?

a)

frequency

b)

wavelength

c)

Energy

d)

speed of light

350.

The frequency of light is 7.14 x 1014 Hz. What is the wavelength?

a)

3.00 x 108 m

b)

4.20 x 10-7 m

c)

2.25 x 1023 m

d)

3.90 x 10-9 m

351.

What is the frequency of ultraviolet light with a wavelength of 1.24 x 10-7 m?

a)

2.42 x 1015 Hz

b)

8.22 x 10-34 Hz

c)

3.00 x 108 Hz

d)

1.04 x 1013 Hz

352.

What is the frequency of infrared light with a wavelength of 1.05 x 10-6 m?

a)

6.96 x 10-40 Hz

b)

2.86 x 1014 Hz

c)

9.62 x 10-13 Hz

d)

2.55 x 10-19 Hz

353.

A violet spectral line of an element has a wavelength of 4.2 x 10-7 m. What is the frequency of the violet light?

a)

3.00 x 108 Hz

b)

6.63 x 10-34 Hz

c)

7.14 x 1014 Hz

d)

1.04 x 10-13 Hz

354.

Electromagnetic waves vary in

a)

the speed they travel in a vacuum

b)

wavelength and frequency

c)

the way they reflect

d)

the orientation of their electric and magnetic fields

355.

To calculate the frequency of an electromagnetic wave, you need to know the speed of the wave and its

a)

wavelength

b)

refraction

c)

intensity

d)

amplitude

356.

Infrared rays have a shorter wavelength than

a)

Ultraviolet ray

b)

X-rays

c)

gamma rays

d)

radio waves

357.

Which wave has a longer wavelength?

a)

wave C

b)

wave D

358.

Which wave has a greater frequency?

a)

wave B

b)

wave C

359.

How would you write 0.0005 in scientific notation?

a)

50 x 10-5

b)

5 x 10-4

c)

5 x 103

d)

.5 x 103

360.

Which of the following numbers is written in scientific notation?

a)

20.35 x 104

b)

.2035 x 104

c)

2035 4

d)

2.035 x104

361.

Express the following in scientific notation:


.000457

a)

457 x 106

b)

457 x 10-6

c)

4.57 x104

d)

4.57 x 10-4

362.

Convert to scientific notation:


520,000,000

a)

52 x 107

b)

5.2 x 10-7

c)

5.2 x 108

d)

0.52 x 109

363.

If the exponent is a positive number the original number was...

a)

a really big number.

b)

a really small number.

364.

If the exponent is a negative number the original number was...

a)

a really large number.

b)

a really small number.

365.

Convert this number into scientific notation:


0.068

a)

6.9 x 106

b)

6.8 x 10-9

c)

6.8 x 10-2

d)

None of the above

366.

Convert this number into scientific notation:


950,000

a)

9.5 x 105

b)

9.5 x 10-9

c)

9.5 x 102

d)

None of the above

367.

Which value is the greatest?

a)

5.0 x 10-9

b)

5.0 x 10-4

c)

5.0 x 106

d)

5.0 x 108

368.

Which number is the least in value?

a)

5.0 x 10-9

b)

5.0 x 10-4

c)

5.0 x 106

d)

5.0 x 108

369.
7.82 x 10-6 is an example of scientific notation. The exponent of -6 tells you your number will be very ________.
a)
Large
b)
Small
c)
Basic
370.
Change from standard form to scientific notation: 12,000,000
a)
12.0  x  107
b)
0.12  x  107
c)
1.2  x  106
d)
1.2  x  107
371.

The brightness of a star as seen from earth

a)

Apparent magnitude

b)

Awesome magnitude

c)

Absolute magnitude

d)

Amazing magnitude

372.

Brightness determined by DISTANCE from the earth

a)

Amazing magnitude

b)

Absolute magnitude

c)

Apparent magnitude

d)

Awesome magnitude

373.

Why can the apparent magnitude be inaccurate?

a)

It doesn't exist

b)

It may not be brighter compared to another star but instead just closer

c)

It only shows the brightness of stars too far away for humans to detect

d)

the scale is messed up

374.

In comparison to other stars in the sky, the Sun appears brighter because it is–

a)

Bigger

b)

Smaller

c)

Nearer

d)

Further

375.

Alpha Centauri A is a star that is larger than the Sun, yet it appears much less bright. Which of the following is the best explanation for this?

a)

The difference in brightness is due to the distance of the Sun and Alpha Centauri A from Earth

b)

The smaller a star the brighter it appears

c)

The older the star the brighter it appears

d)

The larger the star always appears to be brighter

376.
Characteristics used to classify stars include
a)
distance, size, and color.
b)
size, distance, and brightness.
c)
color, brightness, and distance.
d)
size, brightness, and temperature.
377.
The absolute brightness of a star depends on its
a)
distance and temperature.
b)
size and temperature.
c)
color and temperature.
d)
distance and color.
378.
The brightness of a star as seen from Earth is its 
a)
apparent brightness.
b)
absolute brightness.
c)
parallax.
d)
reflective brightness.
379.
What color of star is the hottest?
a)
Blue
b)
Red
c)
Yellow
d)
Orange
380.
The color of a star depends on its
a)
size
b)
temperature
c)
shape
d)
magnitude
381.
A very bright star can seem to be dimmer because it is 
a)
further away
b)
cooler in temperature
c)
very close
d)
batteries are dying
382.
Put the stars in order from coolest to hottest.
a)
Blue, White, Yellow, Orange, Red
b)
Red, Orange, Yellow, White, Blue
c)
Red, Orange, Yellow, Blue, White
d)
Red, Yellow, Orange, White, Blue
383.
This color of star is the coolest temperature
a)
Blue
b)
Green
c)
Red
d)
Yellow
384.
Which of the following would be the dimmest star? 
a)
-15
b)
-5
c)
0
d)
25
385.
What is magnitude?
a)
the process inside a star that produces the star's energy
b)
term used by scientists to describe a star's brightness
c)
star groupings in space
d)
the process inside a star that produces the star's energy
386.
Which of the following stars would be seen as the brightest star?
a)
Alpheratz, which has an apparent magnitude of 2
b)
Alcyone, which has an apparent magnitude of 3
c)
Deneb, which has an apparent magnitude of 1
d)
Sirius, which has an apparent magnitude of -1
387.
A student notices that the moon looks larger than the stars.  Why?
a)
The moon is reflecting light from the sun
b)
The moon is closer to Earth then the stars
c)
The moon is much larger than the stars
d)
The moon is much larger than Earth
388.
Which is the hottest?
a)
a red giant
b)
small, white dwarf
c)
main-sequence yellow star
d)
main-sequence blue star
389.
The color of a star depends on its
a)
size
b)
temperature
c)
shape
d)
magnitude
390.

Put the stars in order from hottest to coolest.

a)

Blue, White, Yellow, Orange, Red

b)

Red, Orange, Yellow, White, Blue

c)

Red, Orange, Yellow, Blue, White

d)

Red, Yellow, Orange, White, Blue

391.

Which star is the least bright?

a)

B

b)

A

c)

C

d)

D

392.

Which star appears the least bright from Earth?

a)

B

b)

A

c)

C

d)

D

393.

Order the stars from brightest to dimmest based on ABSOLUTE brightness.

a)

A, B C, D

b)

D, C, B, A

c)

D, C, A, B

d)

A, D, C, B

394.

Which star is the brightest based on APPARENT magnitude?

a)

Sun

b)

Sirius

c)

Vega

d)

Polaris

395.

Which choice below has the stars correctly ordered from dimmest to brightest, based on absolute brightness?

a)

Sun, Polaris, Betelgeuse

b)

Sirius, Vega, Sun

c)

Vega, Sirius, Sun

d)

Betelgeuse, Sun, Vega

396.

What is the brightness of Rigel as seen from Earth?

a)

-1.46

b)

-8.1

c)

0.12

d)

0.85

397.

Which star is the brightest?

a)

Sirius

b)

Alderban

c)

Rigel

d)

Sun

398.

When sunlight is split by a prism or diffraction grating it appears to emit a ___ spectra.

a)

absorption

b)

dark-line

c)

continuous

d)

bright-line

399.

Upon closer examination, sunlight (and all stars) actually emit ___ spectra.

a)

bright-line (or emission)

b)

absorption (or dark-line)

c)

continuous

d)

multiple

400.

The analysis of the way matter emits and absorbs radiation is called ___.

a)

astronomy

b)

chemistry

c)

spectroscopy

d)

atomic theory

401.

Spectroscopy can be used to study

a)

the atmosphere of Mars.

b)

the age of stars.

c)

spectroscopes.

d)

the Moon.

402.

Spectroscopy can also be used to study

a)

galaxies.

b)

the surface of Mercury.

c)

stellar composition.

d)

UFO's.

403.

___ or "bright-line" spectra can be used to study the elemental composition of stars.

a)

Absorption

b)

Dark

c)

Continuous

d)

Continuous

404.

When electrons of an element reach an "excited" state, ___ lines are produced.

a)

dark

b)

emission (bright)

c)

continuous

d)

invisible

405.

A ___ is used in astronomy to break down light like a prism.

a)

telescope

b)

spectroscope

c)

stethoscope

d)

microscope

406.

Each element on the periodic table can be identified by its

a)

classification as a solid, liquid or gas.

b)

location on the table.

c)

ability to react to form compounds.

d)

unique spectral "fingerprint."

407.

Emission spectra emitted by an element (or compound) will produce ___ through a spectroscope.

a)

bright lines

b)

a continuous rainbow

c)

dark lines

d)

white light

408.

The spectroscope is a powerful tool used by astronomers to infer the nature of matter.

a)

True

b)

False

409.

Excited hydrogen gas forms a series of distinct bright spectral lines called absorption lines.

a)

True

b)

False

410.

When an electron changes state it produces a proton.

a)

True

b)

False

411.

By passing starlight light through a ___the light is spread out into its component colors.

a)

spectrograph or spectrometer

b)

telescope

c)

prism or diffraction grating

d)

mirror

412.

After hydrogen is ___ - which is made up of two protons, two neutrons & two electrons.

a)

helium

b)

beryllium

c)

lithium

d)

oxygen

413.

___ produces many emission lines in the red-wavelengths & is used in lights.

a)

Neon

b)

Argon

c)

Hydrogen

d)

helium

414.

A spectroscope may be connected to a ___ to record an object's spectra.

a)

telescope

b)

CCD (charged coupled device)

c)

spectrometer

d)

spectrograph

415.

A ___ can be used in place of a prism in a spectroscope & is inexpensive.

a)

plastic prism

b)

diffraction grating

c)

CCD

d)

lens

416.

If an object like a star is moving away from Earth, the spectral lines are observed to be

a)

smaller or thinner & red-shifted.

b)

smaller or thinner & blue-shifted.

c)

wider or broader & blue-shifted.

d)

wider or broader & red-shifted.

417.

Spectral lines that are observed to be narrower & blue-shifted indicates that an object is

a)

moving away from Earth.

b)

showing transverse motion.

c)

moving towards Earth.

d)

showing radial motion.

418.

When sunlight is split by a prism or diffraction grating it appears to emit a ___ spectrum.

a)

absorption

b)

emission

c)

continuous

419.

Upon closer examination, sunlight (and all stars) actually emit ___ spectra.

a)

bright-line (or emission)

b)

absorption (or dark-line)

c)

continuous

d)

multiple

420.

The analysis of the way matter emits and absorbs radiation is called ___.

a)

astronomy

b)

chemistry

c)

spectroscopy

d)

atomic theory

421.

Spectroscopy can be used to study

a)

the atmosphere of Mars.

b)

the age of stars.

c)

spectroscopes.

d)

the Moon.

422.

Spectroscopy can be used to study...

a)

galaxies.

b)

the surface of Mercury.

c)

stellar composition.

d)

UFOs.

423.

___ or "bright-line" spectra can be used to study the elemental composition of hot gas clouds.

a)

Absorption

b)

Emission

c)

Continuous

424.

When electrons of an element reach an "excited" state, ___ lines are produced.

a)

dark

b)

emission (bright)

c)

continuous

d)

invisible

425.

A ___ is used in astronomy to break down light like a prism.

a)

telescope

b)

spectroscope

c)

stethoscope

d)

microscope

426.

Each element on the periodic table can be identified by its

a)

classification as a solid, liquid or gas.

b)

location on the table.

c)

ability to react to form compounds.

d)

unique spectral "fingerprint."

427.

Emission spectra emitted by an element (or compound) will produce ___ through a spectroscope.

a)

bright lines

b)

a continuous rainbow

c)

dark lines

d)

white light

428.

The spectroscope is a powerful tool used by astronomers to infer the nature of matter.

a)

True

b)

False

429.

Excited hydrogen gas forms a series of distinct bright spectral lines called absorption lines.

a)

True

b)

False

430.

When an electron changes state it produces a proton.

a)

True

b)

False

431.

By passing starlight through a ___the light is spread out into its component colors.

a)

telescope

b)

prism

c)

mirror

432.
The _______________ determines the color of visible light. 
a)

wavelength

b)

speed

c)

amplitude

d)

intensity

433.
Emission of light from an atom occurs when an electron
a)
drops from a higher to a lower energy level.
b)
   jumps from a lower to a higher energy level.   
c)
   moves within its atomic orbital.
d)
falls into the nucleus.
434.
Which drawing represents the process by which an emission line is formed?
a)
A
b)
B
c)
C
d)
D
435.
Which drawing represents the process by which an absorption line is formed?
a)
A
b)
B
c)
C
d)
D
436.
The ground state is the highest energy state of an atom.
a)
True
b)
False
437.
For an electron to change from ground state to an excited stated it must...
a)
Absorb energy
b)
Release energy
438.
When talking about energy levels in an atom, what is an "excited state"?
a)
The highest energy state of an atom.
b)
Any level higher than the ground state.
c)
The lowest energy state of an atom.
d)
When an atom loses an electron
439.

Why are emission spectra of elements called "atomic fingerprints"?

a)

They are all the same

b)

They are all unique

c)

They are all similar

d)

They all contain colored light

440.

According to the Bohr model of the atom, the single electron of a hydrogen atom circles the nucleus

a)

in specific, allowed orbits

b)

in one fixed orbit at all times

c)

at any of an infinite number of distances, depending on its energy

d)

counterclockwise

441.

An emission spectrum is produced when an electron moves from one energy level

a)

into the nucleus

b)

to a higher energy level

c)

to another position in the same sublevel

d)

to a lower energy level

442.

If an electron moves from n=4 to n=2 it ____

a)

absorbs energy

b)

releases energy

443.

Based on the picture, choose the best description of how wavelength and frequency are related

a)

As wavelength increases, frequency increases

b)

As frequency increases, wavelength decreases

c)

As frequency increases, wavelength remains the same

d)

Frequency and wavelength mean the same thing

444.

Each element on the periodic table can be identified by its

a)

classification as a solid, liquid or gas.

b)

location on the table.

c)

ability to react to form compounds.

d)

unique spectral "fingerprint."

445.

A ___ is used in astronomy to break down light like a prism.

a)

telescope

b)

spectroscope

c)

stethoscope

d)

microscope

446.

What is the unknown spectrum?

a)

beryllium

b)

copper

c)

manganese

d)

strontium

447.
What kind of spectrum is this?
a)
absorption spectrum
b)
continuous spectrum
c)
emission spectrum
448.
Which elements are in the unknown sample?
a)
A and B
b)
B and C
c)
A and D
d)
B and D
449.

Which element(s) is/are in Unknown W?

a)

Cadmium, Potassium, and Helium

b)

Hydrogen, Potassium, and Lithium

c)

Cadmium and Sodium

d)

Only Sodium

450.

What kind of spectrum is this?

a)

absorption spectrum

b)

continuous spectrum

c)

emission spectrum

451.

The unknown emission spectrum belongs to the element...

a)

Hydrogen

b)

Mercury

c)

Neon

d)

Sodium

452.

The unknown emission spectrum belongs to the element...

a)

Hydrogen

b)

Mercury

c)

Neon

d)

Helium

453.

When an electron falls down in energy level, it releases:

a)

heat

b)

speed

c)

juice

d)

light

454.

True or False: All light has the same energy.

a)

True

b)

False

455.

A big transition will produce more _______ than a small transition.

a)

heat

b)

energy

c)

red

456.

Emission spectra can tell us the ________ of a substance.

a)

color

b)

components

c)

state

d)

light

457.

Which of the following colors has the longest wavelength?

a)

blue/violet

b)

green

c)

yellow

d)

red

458.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
459.

Which element(s) is/are found in the star's spectra below?

a)

Hydrogen only

b)

Hydrogen & Helium

c)

Calcium only

d)

Hydrogen & Calcium

460.

What happens when you shine a light through a prism?

a)

The prism absorbs the light

b)

The amount of light is low density

c)

There is a continuous spectrum of light

d)

There is no light that shines through

461.

How do scientists know what stars are made of?

a)

The Doppler Effect

b)

Emission and Absorption Lines

c)

Radio Waves

d)

The Electromagnetic Spectrum

462.
All electromagnetic waves have the same...
a)
frequency
b)
speed
c)
wavelength
d)
energy
463.

Emission spectra come from

a)

Dense gases

b)

Hot, low density gases

c)

Cold, low density gases

d)

All of the above

464.

A sample of gas is analyzed, producing the spectrograph in the image. Identify which element the sample is mostly made-up of?

a)

Hydrogen

b)

Helium

c)

Neon

d)

Mercury

465.

When we compare the star spectrum with the gas spectrum in this picture what does it tell us

a)

the Sun has Helium

b)

the Sun only has Helium

c)

Helium is made from the fusion process

d)

Sun does not have Helium

466.

When we compare the star spectrum with the gas spectrum in this picture what does it tell us

a)

the Sun has Hydrogen

b)

the Sun only has Hydrogen

c)

Helium is made from the fusion process

d)

Sun does not have Hydrogen

467.

The types of gases that make up a star is also known as the star's _______________.

a)

composition

b)

temperature

c)

size

d)

luminosity

468.

Look carefully at the picture. It shows an electron in the excited state on the left, and the electron returning to its ground state on the right. When the electron return to the ground state it emits a_______________________.

a)

blast of cold air

b)

electrostatic charge

c)

proton

d)

photon (light)

469.

The picture shows an atom in the ground state absorbing energy and the electron jumps to the excited state. Which state has higher energy?

a)

Ground State

b)

Excited State

470.

Each element produces its own pattern of emission spectra lines because each element has its own distinct

a)

Speed of light

b)

Electron configuration

c)

Number of neutrons

d)

None of these

471.

How is white light able to separate through a prism?

a)

the light is being absorbed

b)

the light is being refracted

c)

the light is being reflected

472.
a)

reflection

b)

refraction

473.

High-mass stars burn hotter & brighter because they have more _______ at their cores.

a)

fusion

b)

fuel

c)

energy

d)

pressure

474.
Most stars are identified as ___________ on an H-R Diagram?
a)
Supergiants
b)
Giants
c)
Main Sequence
d)
White Dwarf
475.
Label part 1
a)
#1 Core
b)
#1 Radiation zone
c)
#1 Convection zone
d)
#1 Photosphere
476.

The hottest stars have surface temperatures up to 54,000 oF (30,000 K) and are

a)

red/orange in color.

b)

blue/violet in color.

c)

generally just too hot to observe with a telescope.

d)

about the same size as our Sun.

477.

The three stars that make up the "belt" in the constellation Orion are

a)

yellow stars like our Sun (or Sol ).

b)

all going to blow up as supernovae very soon.

c)

all very hot blue giant stars.

d)

called Mintaka & Bellatrix.

478.

Examples of very hot blue/violet stars include

a)

the Sun (or Sol ) and Alpha Centauri A.

b)

Mintaka, Rigel & Sirius.

c)

Betelgeuse & Mira.

d)

Alpha Centauri B & Proxima Centauri.

479.

Yellow or "medium" hot stars like our Sun & Alpha Centauri A have surface temperatures around

a)

1 million degrees Fahrenheit.

b)

10,000 degrees Celsius.

c)

1 million degrees Celsius.

d)

10,000 degrees Fahrenheit.

480.

Relatively "cool" stars (5000 oF surface temps) are generally

a)

red in the visible light spectrum.

b)

going to blow up pretty soon.

c)

yellow in the visible light spectrum.

d)

not found very often in our galaxy.

481.

Basically the ____ index of stars allow astronomers to determine stellar surface temperatures.

a)

Doppler

b)

color

c)

spectral

d)

radial

482.

Stellar classification is the classification of stars based on their ____ characteristics.

a)

spectral

b)

color

c)

stellar

d)

size

483.

EM radiation from a star is analyzed by splitting it with a

a)

prism.

b)

charged coupled device (CCD).

c)

telescope.

d)

diffraction grating.

484.

A star's spectrum exhibits the rainbow of colors interspersed with

a)

bright-line emissions.

b)

absorption lines.

c)

a continuous spectrum.

d)

Fraunhofer lines.

485.

Stars are classified based on spectral type & temperature with "O-type" stars

a)

the coolest.

b)

classified as the most dangerous.

c)

somewhere in the middle temperature-wise.

d)

the hottest.

486.

Spectral classification of stars based on temps. are O, B, A F, G, K, M (hottest to coolest).

a)

True

b)

False

487.

"M-type" stars are classified as the coolest and make up the majority of stars in the galaxy.

a)

True

b)

False

488.

Our Sun (or Sol ) and Alpha Centauri A are classified as "K-type" stars.

a)

True

b)

False

489.

Two of the brightest stars in the night sky are the red supergiant Betelgeuse and blue giant

a)

Bellatrix in the constellation Centaurus.

b)

Arcturus in the constellation of Orion.

c)

Rigel in the constellation of Orion.

d)

Mintaka in the constellation Centaurus.

490.

Parallax is used by astronomers to determine "nearby" stellar distance to within

a)

about 330 light years.

b)

100 parsecs.

c)

about 330 parsecs.

d)

100 light years.

491.

Astronomers use luminosity, distance and ___ to indirectly measure star radius.

a)

size

b)

temperature

c)

weight

d)

gravitational pull

492.

Stars (like Mira ) that are 10-100 times the size of our Sun are called

a)

white dwarfs.

b)

red giants.

c)

red supergiants.

d)

white supergiants

493.

Stars (like Betelgeuse ) which are 100-1000 times the Sun's radius are classified as

a)

way too hot to get close to.

b)

supernova stars.

c)

giants.

d)

supergiants.

494.

Stars that are comparable to our Sun in size or smaller are classified as ____ stars.

a)

average

b)

dwarf

c)

yellow

d)

blue dwarf

495.

Earth-size stars that are very hot (like Sirius B ) are classified as

a)

too small to actually be a star.

b)

white dwarfs

c)

re dwarfs

d)

blue dwarfs

496.

If the plane of the Milky Way Galaxy is about 100,000 light years across, how long would it take a spacecraft moving at 430,000 miles per hour to get from one end to the other?

a)

15 years

b)

1500 years

c)

150,000 years

d)

150 million years

497.

If a star is 356 light years from Earth, how long would it take radio waves emitted from that star to reach us?

a)

35 hours

b)

3.56 seconds

c)

356 minutes

d)

356 years

498.

If Jupiter's orbit has a 5 AU long radius, what is its distance from the Sun in meters?

a)

7.48×10117.48\times10^{11}

b)

7.48

c)

748

d)

7.48×1057.48\times10^5

499.

If you sent a mission to Mars and the spacecraft could travel at 25,000 miles per hour, about how long would it take to get there if Mars is 70 million miles away?

a)

2.8 hours

b)

28 hours

c)

280 hours

d)

2800 hours

500.

If Saturn is 1.42×10141.42\times10^{14} centimeters from the Sun, how long would it take for ultraviolet light from the Sun to reach Saturn?

a)

1.3 minutes

b)

13 minutes

c)

1.3 days

d)

13 days

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