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Stars/Galaxies and Waves

Total questions: 55

Worksheet time: 56mins

Name
Class
Date
1.
Star formation begins in the...
a)
main sequence
b)
nebula
c)
dwarfism
d)
periodic table
2.
protostar is the last stage of a stars life
a)
true
b)
false
3.

Which of the following is NOT true about main sequence stars?

a)

as temperature increases so does luminosity

b)

all medium/ average sized stars

c)

include red giants, yellow stars, blue giants

d)

has the least amount of stars

4.

Cell phones use this type of wave

a)

Microwaves

b)

Ultraviolet

c)

X-rays

d)

Gamma rays

5.
These waves from the sun cause sunburn.
a)
Gamma
b)
Microwaves
c)
Radio
d)
Ultraviolet
6.

Which color of visible light has the least energy?

a)

Violet

b)

Blue

c)

Red

d)

Orange

7.
This color has the shortest wavelength
a)
Indigo
b)
red
c)
Yellow
d)
violet
8.

What type of galaxy is this?

a)

Irregular

b)

Elliptical

c)

Spiral

d)

It isn't a galaxy

9.
What is the name of our galaxy?
a)
Snickers
b)
Andromeda
c)
Local Group
d)
Milky Way
10.
Our sun is located on one of the Spiral Galaxy arms.  
a)
True
b)
False
11.
What are the the 3 types of galaxies?
a)
Spiral Galaxies, Regular Galaxies, and Lliptical Galaxies
b)
Spiral Galaxies, Irregular Galaxies, and Elliptical Galaxies
c)
 Milky Way, Elliptical Galaxies, and Spiral Galaxies
d)
Milky Way, Elliptical Galaxies, and Irregular Galaxies
12.

The best description of a red supergiant star would be -

a)

hot and bright

b)

hot and dim

c)

average brightness and temp

d)

cool and bright

13.

Select any statement that is true about Star F on the diagram.

a)

Star F is a main sequence star.

b)

Star F is a blue star.

c)

Star F is a Spectral Type K star.

d)

Star F is a dim star.

e)

Star F has a low temperature.

14.

Which of the following shows the correct order in the life of a star from beginning to end?

a)

nebula, average star, white dwarf, protostar, red giant

b)

nebula, protostar, average star, red giant, white dwarf

c)

white dwarf, red giant, average star, protostar, nebula

d)

nebula, protostar, white dwarf, average star, red giant

15.

Which of these galaxies would be considered an elliptical galaxy?

a)

b)

c)

d)

16.

the intrinsic brightness of a celestial object.

a)

luminosity

b)

gravity

c)

nuclear fusion

d)

heavy elements

17.
A gigantic explosion that causes the death of a large star is called
a)
pulsar
b)
red giant 
c)
supernova
d)
black hole
18.

One possible outcome that is left after a supernova is a super dense core called a:

a)

Neutron Star

b)

White Dwarf

c)

Red Giant

d)

Black Dwarf

19.
Why won't our sun ever become a black hole?
a)
It is too massive
b)
It is too old
c)
It is too young
d)
It is too small
20.
According to this Hertzsprung-Russell Diagram which stars are brightest?
a)
Purple
b)
Red
c)
Blue
d)
Yellow
21.

What is a galaxy?

a)

a star and it's surrounding planets

b)

billions of stars held together by gravity

c)

the big bang

d)

a cluster of nebulas

22.

Which has the LONGEST wavelength and, therefore, the lowest frequency/energy

a)

Gamma Rays

b)

Radio Waves

c)

Visible Light

d)

Infrared rays

23.

What holds a galaxy together?

a)

pressure

b)

glue

c)

gravity

d)

planets

24.

A star that is several thousand times brighter than the sun with a temperature that is higher than 30,000 K would most likely be classified as a -

a)

main-sequence star in spectral class O

b)

giant in spectral class K

c)

main-sequence star is spectral class M

d)

supergiant in spectral class B

25.

Correctly label the HR diagram.

a)Main-Sequence
b)Giants
c)Supergiants
d)White Dwarfs
1
2
3
4
1)
2)
3)
4)
26.

What type of star is our sun?

a)

Main-sequence

b)

White dwarf

c)

Blue supergiant

d)

Red Giant

27.

Which star is considered a giant star?

a)

Mira

b)

Zeta Arindani

c)

Barnard's Star

d)

Betelgeuse

28.
Which star is the coldest?
a)
Yellow Star
b)
Red Star
c)
Orange Star
d)
Blue Star
29.

Which star is brighter than Alpha Centauri B, but dimmer than the sun?

a)

Pollux

b)

Spica

c)

Tau Ceti

d)

Mira

30.

Cell phones use this type of wave

a)

Microwaves

b)

Ultraviolet

c)

X-rays

d)

Gamma rays

31.

The highest frequency

a)

Radio waves

b)

infrared waves

c)

Visible light

d)

Gamma rays

32.
  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
33.

Why do scientists use the electromagnetic spectrum to study the composition of stars and the universe?

a)

We cannot travel to stars

b)

The full EM spectrum provides much more information than just visible light from a telescope

c)

The EM spectrum allows scientists to compare wavelengths with other known elements on Earth

d)

All of the above

34.
What type of galaxy has no defined pattern or shape?
a)
Spiral 
b)
Elliptical
c)
Irregular
d)
Constellation
35.

What galaxy do we live in?

a)

Irregular Galaxy

b)

Spiral Galaxy

c)

Elliptical Galaxy

d)

The toilet

36.
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy
a)
Radio waves
b)
Ultraviolet Rays
c)
Gamma Rays
d)
X-rays
37.
What color (of visible light) has the highest frequency and the shortest wavelength
a)
Violet
b)
Black
c)
White
d)
Green
38.

What is the main factor that determines what a star will become?

a)

mass

b)

brightness

c)

temperature

d)

color

39.

If our Sun died out, what would it become?

a)

Pulsar

b)

White dwarf

c)

Black hole

d)

Neutron Star

40.
The star that appears brightest to us on Earth is
a)
the Sun
b)
Sirius
c)
Polaris
41.
When a massive star dies it may explode in a supernova.
a)
True
b)
False
42.
Use the Hertzsprung-Russell Diagram to answer the following question.  Betelgeuse is a _____
a)
Hot and Bright Star
b)
Cool and Bright Star
c)
Hot and Dim Star
d)
Cool and Dim Star
43.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
44.

Which of the following characteristics matches with #1?

a)

Hot and Bright

b)

Cool and Bright

c)

Hot and Dim

d)

Cool and Dim

45.
What is found on the x axis of an H-R diagram?
a)
Luminosity
(or brightness)
b)
Temperature
c)
Star Size
d)
Distance
46.

Which spectral class is the hottest and the brightest?

(a)  

47.

Which Red Giant has a brightness of 100?

(a)  

48.
Why won't our sun ever become a black hole?
a)
It is too massive
b)
It is too old
c)
It is too young
d)
It is too small
49.
The Hertzprung Russell Diagram consists of two axis that are labelled...
a)
Luminosity and Size
b)
Luminosity and Temperature
c)
Luminosity and Age
50.
Choose the best description of Bernard's star.
a)
Bernard's star is both cooler and brighter than the sun.
b)
Bernard's star is both cooler and dimmer than the sun.
c)
Bernard's star is neither cooler or dimmer than the sun.
d)
Bernard's star is brighter and hotter than the sun.
51.

A system of stars, gas, dust, and dark matter bound together by gravity is called -

a)

an asteroid

b)

a moon

c)

a galaxy

d)

a nebula

52.
A large cloud of gas and dust in interstellar space; the predecessor to stars...
a)
Constellation
b)
Black hole
c)
Nebula
d)
Galaxy
53.
Which is NOT a type of galaxy?
a)
Elliptical
b)
Spiral
c)
Oblong
d)
Irregular
54.

What is the shape of the Milky Way?

a)

Spiral Galaxy

b)

Elliptical Galaxy

c)

Barred Spiral Galaxy

d)

Irregular Galaxy

55.

If you were giving directions to an alien from another galaxy, how would you tell him to locate Earth?

a)

Tell him to visit the Orion arm

b)

Tell him to visit the Sagittarius arm

c)

Tell him to visit the Perseus arm

d)

Tell him to visit the central bulge

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