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Astronomy BIG Review

Total questions: 170

Worksheet time: 2hrs 51mins

Name
Class
Date
1.

Science is

a)

A list of facts to memorize

b)

A way to answer questions

c)

A search for truth

d)

All of the above

2.
Change from standard form to scientific notation:  450,000
a)
4.5  x  105
b)
45  x  105
c)
4.5  x  104
d)
4.5  x  106
3.
Change from standard form to scientific notation:  0.000398
a)
39.8  x  10-5
b)
3.98  x  10-5
c)
3.98  x  10-4
d)
39.8  x  10-6
4.
Try to change the number back to standard form:  6.79  x  104
a)
679,000
b)
6,790
c)
67,900
d)
6,790,000
5.
Try to change the number back to standard form: 3.97  x  10-2
a)
0.000397
b)
0.0397
c)
0.0000397
d)
0.397
6.

What is the study of space, the universe, and how it changes with time?

a)

Meteorology

b)

Astronomy

c)

Astrology

d)

Zoology

7.

Which is the largest object in our solar system?

a)

Moon

b)

Mars

c)

Venus

d)

Sun

8.

The Milky Way is the galaxy that contains our Solar System.

a)

True

b)

False

9.

Which of these lists the systems in correct order from small to large

a)

solar system, universe, local group, galaxy, local supercluster

b)

galaxy, solar system, local supercluster, local group, galaxy

c)

solar system, galaxy, local group, local supercluster, universe

d)

solar system, local group, local supercluster, galaxy, universe

10.

What is a star?

a)

large, glowing ball of gas that generates heat and light through nuclear fusion

b)

spherical object that orbits a star

c)

an object that orbits a planet

d)

small rocky object that orbits a star

e)

small icy object that orbits a star

11.

What is a planet?

a)

large, glowing ball of gas that generates heat and light through nuclear fusion

b)

spherical object that orbits a star

c)

an object that orbits a planet

d)

small rocky object that orbits a star

e)

small icy object that orbits a star

12.

What is a satellite?

a)

large, glowing ball of gas that generates heat and light through nuclear fusion

b)

spherical object that orbits a star

c)

an object that orbits a planet

d)

small rocky object that orbits a star

e)

small icy object that orbits a star

13.

What is an asteroid?

a)

large, glowing ball of gas that generates heat and light through nuclear fusion

b)

spherical object that orbits a star

c)

an object that orbits a planet

d)

small rocky object that orbits a star

e)

small icy object that orbits a star

14.

What is a comet?

a)

large, glowing ball of gas that generates heat and light through nuclear fusion

b)

spherical object that orbits a star

c)

an object that orbits a planet

d)

small rocky object that orbits a star

e)

small icy object that orbits a star

15.

How many stars are in our solar system?

a)

1

b)

9

c)

about 100 million (100,000,000)

d)

about 250 billion (250,000,000,000)

16.

How many stars are in our galaxy?

a)

1

b)

9

c)

about 100 million (100,000,000)

d)

about 250 billion (250,000,000,000)

17.

How long is an astronomical unit?

a)

Average distance from the Sun to Earth (93 million miles)

b)

Distance light travels in one year (6 trillion miles)

c)

One parallax second of arc (19 trillion miles)

d)

Time it takes for Earth to orbit the Sun once (365 days)

18.

How long is a light year?

a)

Average distance from the Sun to Earth (93 million miles)

b)

Distance light travels in one year (6 trillion miles)

c)

One parallax second of arc (19 trillion miles)

d)

Time it takes for Earth to orbit the Sun once (365 days)

19.

There is gravity in space.

a)

True

b)

False

20.
Which season is taking place in the Northern Hemisphere in Position 3?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
21.
Which season is taking place in the Northern Hemisphere in Position 4?
a)
Winter
b)
Spring
c)
Summer
d)
Fall
22.
What happens when the area in which you live tilts away from the sun?
a)
It is summer.
b)
It is spring.
c)
It is winter.
d)
It is fall.
23.
The term equinox means....
a)
equal amount of day light and equal amount of night
b)
Equal amount of winter and summer
c)
Equal amounts of hot dogs for everyone
d)
The longest day of the year
24.
What is the longest day of the year?
a)
winter solstice
b)
summer solstice
c)
fall equinox
d)
spring equinox
25.
Why do we experience the changing of the season on the earth?
a)
distance from the sun
b)
rotation of the earth
c)
change in solar output
d)
tilt of the earth's axix
26.
The spinning of Earth around its axis is called its _______________. 
a)
axis
b)
rotation
c)
revolution
d)
ellipse
27.
How long does it take for the Earth to make one rotation?
a)

about 24 hours

b)

False! The Earth is flat and stationary

c)
365 days
d)

about 29 days

28.
The movement of one object around another is a _______________. 
a)
revolution
b)
axis
c)
rotation
d)
ellipse
29.
The path the Earth follows as it revolves around the Sun is its _______________. 
a)
orbit
b)
rotation
c)
axis
d)
eclipse
30.
What happens when one object in space gets between the Sun and another object?
a)
orbit
b)
axis
c)
eclipse
d)
rotation
31.
Stars that appear in shapes and patterns in the sky are called ____________. 
a)
eclipse
b)
constellations
c)
lunars
d)
suns
32.
Define Waxing
a)
Moon is increasing and light part appears to be growing
b)
Completely illuminated
c)
dark side is facing earth
d)
Moon is decreasing and light part appears to be shrinking
33.
Define Gibbous
a)
Less than half of moon visible
b)
More than half of moon visible
c)
All of moon visible
d)
None of moon visible
34.
Define Quarter Moon
a)
None of moon visible
b)
Less than Half the moon is visible
c)
More than half of moon is visible
d)
Half of the moon is visible
35.
Name this moon phase
a)
Waxing Gibbous
b)
Waxing Crescent
c)
Waning Crescent
d)
Waning Gibbous
36.
In which moon phase, can the moon not be seen at all?
a)
Waning crescent
b)
Full moon
c)
Waxing gibbous
d)
New moon
37.
Name this moon phase
a)
waning crescent
b)
waxing crescent
c)
waning gibbous
d)
waxing gibbous
38.
Name this moon phase
a)
First Quarter
b)
Last Quarter
c)
New Moon
d)
Full Moon
39.
The tendency of an object to resist being moved or if in motion, being stopped is...
a)
Inertia
b)
Force
c)
Fricition
d)
Monty
40.
What is the SI unit for measuring force?
a)
Newtons
b)
Pounds
c)
Carls
d)
Isaacs
41.
The formula we get from the second law is...?
a)
F = m*a
b)
v = d/t
c)
a = v/t
d)
f = 1/T
42.
Which statement illustrates Newton’s first law?
a)
A stone will not move unless something pushes or pulls it
b)
As a car comes to a stop, the passengers continue to move forward
c)
A ball rolling across the floor eventually slows down
d)
All of them!
43.
An exploratory robot was sent to the planet Mars. The gravity on Mars is weaker than the gravity on Earth. Compared to the mass and weight of the robot on Earth, the robot on Mars has...
a)
less mass and weight.
b)
less mass but equal weight.
c)
equal mass and weight.
d)
equal mass but less weight.
44.
An object at rest remains at rest and an object in motion remains in motion unless it experiences an unbalanced force is what law?
a)
First Law
b)
Second Law
c)
Third Law
d)
Ninth Symphony
45.

What is Acceleration?

a)

How long it takes me to win at fortnite

b)

The direction of an object

c)

A change in Motion

d)

How fast something is moving

46.

mass

a)

the amount of weight in an object

b)

the amount of matter in an object

c)

how heavy something is

d)

a force that slows down motion

47.

For every action force there is a reaction force

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

Law of Gravity

48.

An object in motion stays in motion unless an outside force acts on it

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

Law of Gravity

49.

What is gravity

a)

a force that pulls all objects down

b)

tendency of matter to return to where it started

c)

force of attraction between all matter

d)

a myth

50.

There is gravity in space.

a)

True

b)

False

c)

It depends on your velocity

51.

If the mass of an object on Earth is 18 kilograms, what would the mass of the same object be on the Moon?

a)

18 kg

b)

4 kg

c)

0 kg

d)

32 kg

52.

What is the unbalanced force on a boy and his skateboard if the total mass of the boy and skateboard is 60 kg and their acceleration is 3 m/s/s forward?

a)

180 N

b)

20 N

c)

0.05 N

d)

360 N

53.

There is gravity in space.

a)

True

b)

False

c)

It depends on your location

54.

Gravity is stronger when objects are ______________ .

a)

farther apart

b)

closer together

c)

less massive

d)

in outer space

55.

A push or pull on an object is

a)

an acceleration

b)

momentum

c)

inertia

d)

a force

56.

Astronauts in orbit are weightless because

a)

there is no gravity in space

b)

they are in free-fall

c)

they are so far from Earth

d)

it's all faked anyway

57.

Rockets are pushed forward because the rocket pushes on

a)

the ground

b)

the air in the atmosphere

c)

the exhaust gases shooting out the back

d)

the Earth's magnetic field

58.

Gravity is a force that pulls all things

a)

down

b)

together

c)

apart

d)

into Mordor where the shadows lie

59.

What is the force necessary to accelerate a 10 kg car at a rate of 5 m/s/s?

a)

50 N

b)

5 N

c)

0.2 N

d)

2 N

60.

An ideal radiator when hot and a perfect absorber when cool.

a)

thermal oscillator

b)

radiant source

c)

black body

d)

ideal gas

61.

When light gives up its energy to an atom or molecule

a)

absorption

b)

emission

c)

energy levels

d)

spectrum

62.

When an atom produces light or radiation

a)

wien's law

b)

absorption

c)

energy levels

d)

emission

63.

EM Radiation with a wavelength longer than visible light but shorter than radio waves.

a)

ultraviolet

b)

infrared

c)

x-rays

d)

sound waves

64.

EM radiation with a wavelength shorter than visible light but longer than x-rays

a)

infrared

b)

gamma

c)

ultraviolet

d)

microwave

65.

Wien's Law states the relationship between

a)

wavelength and frequency

b)

temperature and wavelength

c)

frequency and speed

d)

temperature and speed

66.

Light is _____________.

a)

a wave

b)

a particle

c)

both a wave and a particle

d)

neither a wave nor a particle

67.

Energy is never created or destroyed but is always conserved.

a)

True

b)

False

68.

A smooth spectrum that does not have dark or bright lines

a)

absorption spectrum

b)

emission spectrum

c)

continuous spectrum

d)

charter spectrum

69.

A spectrum with bright lines at some narrow color regions

a)

absorption spectrum

b)

emission spectrum

c)

continuous spectrum

d)

visible spectrum

70.

A spectrum with dark lines at some narrow color regions

a)

absorption spectrum

b)

emission spectrum

c)

continuous spectrum

d)

visible spectrum

71.

The part of the EM spectrum we can see with our eyes

a)

absorption spectrum

b)

emission spectrum

c)

continuous spectrum

d)

visible spectrum

72.

The number of times a wave vibrates in one second

a)

wavelength

b)

frequency

c)

energy level

d)

light

73.

The distance between one crest and the next

a)

wavelength

b)

frequency

c)

energy level

d)

light

74.

The orbits that an electron can occupy in an atom

a)

wavelength

b)

frequency

c)

energy level

d)

light

75.

A mix of all the visible colors of light

a)

white

b)

black

c)

cyan

d)

ultraviolet

76.

A wavelength band where our atmosphere absorbs little radiation

a)

atmospheric window

b)

electromagnetic wave

c)

atmospheric anomaly

d)

ozone layer

77.

A fundamental type of matter that cannot be broken down into a simpler chemical substance

a)

photon

b)

orbital

c)

element

d)

light

78.

A particle of light or other EM radiation

a)

photon

b)

orbital

c)

element

d)

light

79.

When an electron is moved to a higher energy state in an atom

a)

electrified

b)

excited

c)

energized

d)

entropy

80.

The change in observed wavelength when a source is moving relative to an observer

a)

tyndall effect

b)

doppler effect

c)

mass effect

d)

cherenkov effect

81.

The colors of the visible spectrum

a)

RMIVUXG

b)

ROYGBIV

c)

ROYROGERS

d)

BELBIVDEVOE

82.

What is temperature

a)

measure of total thermal energy

b)

measure of average particle speed

c)

measure of electron energy level

d)

measure of total matter

83.

A light source moving away from you will show

a)

blueshift

b)

redshift

c)

violetshift

d)

greenshift

84.

The atmosphere blocks most

a)

visible light

b)

radio waves

c)

gamma rays

d)

sound waves

85.

Where are electrons found in an atoms

a)

inside the nucleus

b)

outside the nucleus

c)

inside the mitochondria

d)

orbiting the sun

86.

As a solid object gets hotter and hotter it will glow

a)

red, then green, then blue

b)

blue, then red, then white

c)

red, then white, then blue

d)

red, then pink, then plaid

87.

Light can travel through empty space

a)

true

b)

false

88.

What is the fastest type of electromagnetic radiation

a)

light

b)

radio

c)

gamma

d)

they all travel at the same speed

89.

If the wavelength of a wave increases, its frequency _____________

a)

increases

b)

decreases

90.

What electromagnetic wave . has . the shortest wavelengths and the highest frequencies?

a)

Gamma Rays

b)

Ultraviolet Rays

c)

Radio Waves

d)

X Rays

91.

What electromagnetic wave has the longest wavelengths and lowest frequencies?

a)

Microwaves

b)

Ultraviolet Rays

c)

Infrared Waves

d)

Radio Waves

92.

What electromagnetic wave do humans emit as heat energy?

a)

infrared light

b)

ultraviolet light

c)

visible light

d)

microwaves

93.

According to the Doppler effect, when the source of sound is moving towards an observer, the sound is altered and will have :

a)

a lower pitch

b)

a louder volume

c)

a higher pitch

d)

a quieter volume

94.
Which subatomic particles are found in the nucleus of an atom?
a)
Protons and Electrons
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons, Neutrons and Electrons
95.
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.
96.

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

97.

A cold gas can block some of the light at specific frequencies producing dark lines and is called a(n)

a)

emission spectrum

b)

absorption spectrum

c)

continuous spectrum

98.

There is gravity in space.

a)

True

b)

False

99.

The difference between a theory and a law is:

a)

A theory is uncertain while a law is fact

b)

A theory is just a guess while a law is voted on by both houses of congress

c)

A theory explains and a law just describes

d)

A theory can be changed while a law cannot

100.

A refracting telescope uses _______ to focus light.

a)

Lenses

b)

Mirrors

c)

Lasers

d)

Water

101.

Reflecting telescopes use _______ to focus light.

a)

Lenses

b)

Flat mirrors

c)

Curved Mirrors

d)

A lens and lasers

102.

Modern telescopes are reflecting because: (Choose all that apply)

a)

Lenses are difficult to manufacture

b)

Lenses are heavy and fragile

c)

lenses absorb light that passes through them

d)

Lenses require only 1 perfect surface

103.

Modern telescopes don't use film to capture images, instead they use:

a)

CCDs

b)

USBs

c)

HDDs

d)

CD-ROMs

104.

What types of telescopes have to be placed in space? (Choose all that apply)

a)

X-ray Telescopes

b)

Gamma ray Telescopes

c)

Infrared Telescopes

d)

Radio Telescopes

105.

Why is the Hubble Telescope in space?

a)

Visible light does not pass through the atmosphere

b)

It avoids atmospheric blurring

c)

It's closer to the stars

d)

To show off

106.

Which of these can solve the issue of atmospheric blurring? (choose all that apply)

a)

Using a thicker lens

b)

Adaptive Optics

c)

Putting a telescope in space

d)

Putting a telescope underground

107.

What type of telescope is this?

a)

Refracting Telescope

b)

Radio Telescope

c)

Newtonian Telescope

d)

Solar Telescope

108.

What process uses multiple telescopes to simulate a large one?

a)

Spectrometry

b)

Inferferometry

c)

Photometry

d)

Photography

109.

What is light pollution?

a)

When light from cities makes astronomy observations difficult

b)

When smog or other pollution scatters starlight

c)

When global warming makes the Earth so hot it glows

d)

When light gets dirty while passing though smog

110.

What is the twinkling of stars in our atmosphere called

a)

diffraction

b)

senescence

c)

spectroscopy

d)

scintillation

111.
The bending of light through a lens is called _____
a)
reflection
b)
refraction
c)
diffraction
d)
absorption
112.
The ability to separate two objects that are very close together, is called the _____
a)
orientation
b)
attitude
c)
magnification
d)
resolution 
113.
What type of telescope is this?
a)
Refractor
b)
Reflector
c)
Non-Optical
d)
X- Ray
114.
What type of telescope is this?
a)
Refractor
b)
Reflector
c)
Non-Optical
d)
X- Ray
115.
Why are many large optical telescopes located on mountains?
a)
to be closer to the stars
b)
to be above part of the atmosphere
c)
because it is easier to build telescopes on mountains
d)
to be closer to city lights
116.
Why must Ultra-Violet observing be done in space?
a)
The ozone blocks most of the UV rays in the surface.
b)
It’s hard to know exactly where the ozone hole will be to find UV images
c)
It’s hard to use UV telescopes and radio telescopes together on the surface.
d)
It’s hard to use UV X-Ray telescopes and radio telescopes together on the surface
117.
Once a star uses up all of its _________, the star will begin to go into its death phase.
a)
light
b)
heat
c)
energy
d)
hydrogen
118.
Which of the following list the correct order of the life cycle of massive stars?
a)
Nebula --> protostar --> main sequence --> red supergiant --> supernova --> blackhole
b)
Nebula --> protostar --> main sequence --> red giant --> planetary nebula --> white dwarf --> black dwarf
c)
Nebula --> protostar --> main sequence --> supernova --> red giant --> blackhole
d)
Nebula --> protostar --> blackhole --> red supergiant --> supernova --> main sequence
119.
______ is a force that causes dust particles to stick together in a nebula.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
iron
120.
After the main sequence, a low mass star becomes a
a)
black dwarf
b)
protostar
c)
red giant
d)
supergiant
121.

After a supergiant, a high mass star explodes causing a

a)
supernova
b)
red giant
c)
black hole
d)
planetary nebula
122.
What color of star is the coolest?
a)
Red
b)
Yellow
c)
Blue
d)
White
123.
What color of star is the hottest?
a)
Blue
b)
Red
c)
Yellow
d)
Orange
124.
The color of a star tells us its
a)
magnitude
b)
temperature
c)
size
d)
age
125.
The life cycles of stars are determined by their:
a)
mass (size)
b)
color
c)
distance from Earth
d)
luminosity
126.

What is the source of energy for the Sun?

a)

nuclear fusion

b)

burning coal

c)

burning of solar gases

d)

splitting of atoms

127.

A small White Dwarf has a diameter similar to:

a)

The Sun

b)

The Earth

c)

The Moon

d)

A basketball

128.

What is a protostar?

a)

A star that has died

b)

A smaller than average star

c)

A big, blue star that is on the main sequence of the HR diagram

d)

A contracting mass of gas which represents an early stage in the formation of a star

129.

What is the name of the cloud of dust and gas that a star is formed from?

a)

Nebula

b)

Supernova

c)

Main Sequence

d)

Dwarf

130.

When a Red Giant runs out of fuel, it become a:

a)

Supernova

b)

Nebula

c)

White Dwarf

d)

Main Sequence Star

131.

What is a red giant?

a)

It is what happens when a star begins fusing helium into heavier elements.

b)

It is a star on the main sequence of the HR diagram.

c)

It is a star that has died and is no longer fusing any material.

d)

A warm cloud of dust and gas that is forming into a star.

132.

What is fusion?

a)

It is the measure of brightness of a star.

b)

The process of combining small atoms together to create larger atoms.

c)

It is the process of analyzing stars for what atoms they contain.

d)

The processing of breaking large atoms apart into smaller atoms.

133.

What is a supernova?

a)

The measure of brightness of a star.

b)

Something that only low mass stars can do.

c)

A star that explodes, creating a great amount of light and energy.

d)

A nova that is really, really, ridiculously good at being a nova.

134.

A neutron star is

a)

formed when gravity destroys the atoms causing the electrons and protons to fuse together.

b)

A star that is fusing helium into heavier elements.

c)

The type of star you have before it turns into a black hole.

d)

A star found in the center of a planetary nebula.

135.
Our sun is currently in what star stage?
a)
Protostar
b)
Nebula
c)
Main Sequence
d)
Red Giant
136.

What small, hot, faint objects are found at B?

a)

neutron stars

b)

black holes

c)

white dwarfs

d)

brown dwarfs

137.

What objects are found at C?

a)

Blue giants

b)

Red giants

c)

White dwarfs

d)

Main sequence stars

138.

The H-R diagram classifies stars based on what factors?

a)

Temperature and luminosity

b)

Number of planets

c)

What constellation they're in

d)

Temperature and fusion

139.

Compared to a white dwarf, a red supergiant is...

a)

Hotter and brighter

b)

Hotter and not as bright

c)

Colder and brighter

d)

Colder and not as bright

140.

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

141.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
142.

Our sun is currently a main sequence star. All main sequence stars fuse ____ in their cores.

a)

helium into hydrogen

b)

hydrogen into helium

c)

helium into carbon

143.
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
144.

Use the Hertzsprung-Russell Diagram to answer the following question. Spica is a _____

a)

Hot and Bright Star

b)

Cool and Bright Star

c)

Hot and Dim Star

d)

Cool and Dim Star

145.

Use the Hertzsprung-Russell Diagram to answer the following question. Sirius B is a _____

a)

Hot and Bright Star

b)

Cool and Bright Star

c)

Hot and Dim Star

d)

Cool and Dim Star

146.

Use the Hertzsprung-Russell Diagram to answer the following question. Epsilon Eridani is a _____

a)

Hot and Bright Star

b)

Cool and Bright Star

c)

Hot and Dim Star

d)

Cool and Dim Star

147.
The Nebular Theory is:
a)
A theory on how the Milky Way galaxy was formed
b)
A theory on how the universe was formed
c)
A theory on how the solar system will be destroyed
d)
A theory on how the solar system was formed
148.
The most abundant gases in a nebula are:
a)
Hydrogen & Oxygen
b)
Nitrogen & Oxygen
c)
Hydrogen & Helium
d)
Oxygen & Helium
149.
As a nebula collapses it also begins:
a)
Expand
b)
Rotate
c)
Shake
d)
Turn to ice
150.
What forms in the very center of the accretion disk?
a)
A protosun
b)
A planet
c)
A protoplanet
d)
A planetesimal
151.
What is forming in the accretion disk away from the center?
a)
Light
b)
Protostars
c)
Planetesimals
d)
Hydrogen
152.
The planetesimals keep:
a)
Colliding and breaking apart
b)
Colliding and sticking together
c)
Colliding and bouncing around
d)
Breaking down into smaller pieces
153.
The group of inner planets are known as:
a)
The Terrestrial Planets
b)
The Gas Giants
c)
The Outer Planets
d)
The Hallow Planets
154.
The group of outer planets are known as:
a)
The Terrestrial Planets
b)
The Gas Giants
c)
The Inner Planets
d)
The Rocky Planets
155.
What caused the lighter elements to leave the terrestrial planets?
a)
Gravity from the Gas Giants
b)
Nothing, the lighter elements stayed
c)
Gravity from the Sun
d)

Heat and radiation from the Sun

156.
What percentage of the nebula will the Sun accumulate?
a)
99%
b)
1%
c)
50%
d)
75%
157.
What materials could not survive the heat where the rocky planets were formed?
a)
Gamma Rays
b)
Plasma
c)
Ice and Gas
d)
Rocks
158.

A nebula starts to collapse due to:

a)
A nearby supernova
b)
A nearby star
c)
A passing spaceship
d)
A passing comet
159.

What force drives the collapse of a nebula:

a)

Nuclear fusion

b)

Dark energy

c)

Rotational inertia

d)
Gravity
160.

Why are the outer planets so much bigger?

a)

Because gases expand more than solids

b)

Because they were formed in a warmer region

c)

Because they were formed in a cooler region

d)

Because solar wind blasted away their atmospheres

161.
Between Mars and Jupiter is a region of the solar system called the __________.
a)
asteroid belt
b)
Milky Way
c)
Kuiper belt
d)
Oort Cloud
162.
Most comets originate in the ________.
a)
asteroid belt
b)
Milky Way
c)
Kuiper belt
d)
Oort Cloud
163.
All the known dwarf planets EXCEPT Ceres orbit in the _________.
a)
asteroid belt
b)
Milky Way
c)
Kuiper belt
d)
Oort Cloud
164.
A chunk of ice and dust whose orbit is usually a long, narrow ellipse is a ___________.
a)
meteor
b)
meteorite
c)
comet
d)
asteroid
165.
Pluto, Eris, and Ceres are all classified as
a)
meteors
b)
meteorites
c)
asteroids
d)
dwarf planets
166.
Which planet is closest to the sun?
a)
Earth
b)
Venus
c)
Mercury
d)
Mars
167.
Which planet is the largest?
a)
Jupiter
b)
Saturn
c)
Uranus
d)
Neptune
168.
What is the result of the Greenhouse Effect on the surface temperature of Venus?
a)
It has little or no effect
b)
It is the same effect as on Earth
c)
It has a slightly reduced surface temperture
d)
It has a extremely raised surface temperature
169.

Which of the following is a common characteristic of the gas giants?

a)

Mostly composed of hydrogen and helium

b)

Thick atmospheres

c)

lack of a solid surface

d)

Ring systems and satellites

e)

ALL of these

170.
A planet outside of our solar system that orbits a star is officially called ___
a)
an alien planet
b)
an exoplanet
c)
a martian planet
d)
a distant planet

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