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Universe and Solar System
Universe and Solar System
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1
Why is the planet Uranus considered a gas giant?
because it is larger than Mercury and Venus
because it is similar to Earth
because it has a rocky surface
because it has a deep massive atmosphere
2
Which of the following theories explains the Big Bang view of how the universe originated?
a big explosion where all matter and energy was concentrated
small explosion where huge sphere of matter & energy existed
Complex system of galaxies that has since been expanding
Complete, limitless void without any matter or energy
3
How do the
inner
planets differ from the
outer
planets?
They do not have any moons.
They are made of lighter elements.
They are extremely large.
They are spaced more closely together.
4
What causes the planets to orbit the Sun rather than drift off into space?
The force of gravity
Momentum
Heat energy from the Sun
The force of magnetism
5
The pull of gravity on Earth is a direct result of the
magnetic field of Earth.
rotation of Earth on its axis.
mass of Earth.
weight of Earth’s atmosphere.
6
What is the most useful unit for measuring distances within the solar system?
the paresec
the astronomical unit
the light-year
the kilometer
7
What classification do astronomers use for galaxies?
age
shape
size
color
8
What is one way scientists calculate the age of the universe?
measure the distance from Earth to various galaxies
measure the size of various galaxies
measure the distance from Earth to nearby stars
measure the distance from Earth to the sun
9
Which is the next planet moving outward from the sun after Saturn?
Jupiter
Neptune
Venus
Uranus
10
Which of the following describes a comet?
A bright ball with a tail
A hole in space
A solid ball that circles one planet
A cluster of stars
11
Which lists Earth, Jupiter, the moon and the Sun in order from
largest
to
smallest ?
Jupiter, Sun, Earth, Moon
Jupiter, Earth, Sun, Moon
Sun, Jupiter, Moon, Earth
Sun, Jupiter, Earth, Moon
12
What binds a galaxy together?
brightness
gravity
stars
dust
13
Which burns when it enters Earth's atmosphere and makes a streak of light?
solar flare
comet
meteor
asteroid
14
Which planet has gases, land masses, and large amounts of surface water?
Mars
Saturn
Neptune
Earth
15
The ozone layer in Earth's upper atmosphere is important to living organisms because it
supplies the oxygen required to carry on respiration.
breaks down harmful pollutants into normal atmospheric gases
absorbs harmful ultraviolet radiation from the Sun.
traps heat close to Earth's surface to maintain temperature.
16
Which event in the life cycle of a star causes it to begin to glow?
The neutrons in the star begin to spin.
The temperature of the star mass increases.
The particles up the star repel each other.
The matter making up the star condenses.
17
We can be sure that the Milky Way galaxy is spiral rather than an elliptical because
it has curved arms.
it does not show any rotation.
its stars are all about the same age.
new stars are no longer forming.
18
Which planet on the above diagram represents Earth in the Solar System?
H
M
G
K
19
How can you tell that Mercury is
not
a gas giant?
because it has no ring system
because of where it orbits the sun
because it is dense and rocky
because it has only one moon
20
Which of the following statements is true?
The universe is getting smaller every day.
The universe contracts and expands on a regular basis.
Scientists do not know if the universe's size is changing.
The universe is expanding outward.
21
According to the Big Bang Theory, the universe is about
500 billion years old.
470 billion years old.
13.7 billion years old.
4.7 billion years old.
22
Why do planets or moons with atmospheres have fewer impacts?
Fewer objects orbit near these planets.
The air in the atmosphere slows and burns up small objects.
Erosion erases the features of most craters.
Most impacts occur in remote areas.
23
What are the three major types of galaxies identified by Edwin Hubble?
spiral, triangular, irregular
spiral, triangular, elliptical
triangular, elliptical, irregular
spiral, elliptical, irregular
24
A hurricane-type cloud known as the Great Red Spot can be found on which planet?
Jupiter
Saturn
Mars
Uranus
25
What is one factor that makes life possible on Earth?
an irregular planetary orbit
high surface gravity
liquid water on its surface
a run-away greenhouse effect
26
Which planet do scientists think once had surface water or flowing rivers?
Mercury
Jupiter
Mars
Venus
27
What evidence suggests that Mars once had a warmer climate?
water in its ice caps
an extinct shield volcano
features like dry riverbeds
thin atmospheric pressure
28
Venus has the highest surface temperature of all the planets in our solar system. Wh
y?
Venus revolves around the Sun relatively quickly.
Venus is very close to the Sun.
Venus rotates on its axis very slowly.
Venus’s atmosphere has thick clouds and carbon dioxide.
29
Why are the inner planets called terrestrial planets?
because they are very hot
because they have a similar composition to Earth
because most are gas giants
because they can support life
30
Why is Venus sometimes called Earth's twin?
Venus rotates in the same direction.
Venus is the same size and density.
Venus was born at the same time.
Venus's air has the same gases.
31
The asteroid belt is located between
the Sun and Earth.
Neptune and Pluto.
Saturn and Uranus.
Mars and Jupiter.
32
Why is there such a large range of temperatures on Mercury?
The planet lacks an atmosphere to hold heat.
The planet is heated on only one side.
The planet reflects heat from its dark side.
The planet is too small to hold heat.
33
How is the Earth different from all of the other planets?
It rotates on its axis.
It has a rocky surface.
It is warmed by the Sun.
It has a breathable atmosphere.
