The heliocentric system gained support when Galileo observed that...

Venus goes through phases similar to those of Earth's moon

Copernicus explained that

the sun is at the center of the system of planets

The atmospheres of the gas giant planets cannot escape into space because...

the planets have very strong gravity

What do all of the inner planets have in common?

They are small and have rocky surfaces

What do the four outer planets have in common?

They are much larger than Earth and dont have solid surfaces

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Milestones Practice 12, The Solar System

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1
The model in which Earth is at the center of the system of planets is called the
solar system
heliocentric system
geocentric system
Copernician system
2
Conditions required for life on Earth include
polar ice caps
alternating day and night cycles
liquid water
extreme differences in elevation
3
Uranus is different from other planets because it
rotates on its side
is the farthest from the sun
has the most moons
is mostly nitrogen and helium
4
What shape are the orbits of most comets?
spherical
circles
long, narrow ellipses
nearly circular ellipses
5
The heliocentric system gained support when Galileo observed that...
most of the smaller planets are closer to the sun
one side of the moon always faces Earth
Venus goes through phases similar to those of Earth's moon
the orbit of each planet is an ellipse
6
Sun produces energy by
attracting it with the force of gravity
nuclear fusion
nuclear fission (like nuclear plants in Earth)
burning fuels such as oil
7
Copernicus explained that
the geocentric system is correct
the sun is at the center of the system of planets
the sun and the planets revolve around Earth
there are only six planets
8
The atmospheres of the gas giant planets cannot escape into space because...
although they are big, the planets have little mass
the gases are too heavy
the planets have very strong gravity
the gases solidify at higher elevations
9
What do all of the inner planets have in common?
They have the same period of rotation
They have the same diameter
They have the same period of revolution
They are small and have rocky surfaces
10
Saturn's rigs are made up mostly of...
chunks of ice and rocks
volcanic dust particles
ice and water vapor
nitrogen and helium
11
Meteoroids usually come from
solar winds
debris from other planets
beyond the solar system
comets or asteroids
12
When a meteoroid enters Earth's atmosphere, it produces a streak of light and is called a
meteorite
meteor
asteroid
comet
13
What do the four outer planets have in common?
They are much larger than Earth and are solid
They are much larger than Earth and dont have solid surfaces
They are about the same size as Earth and are solid
They are same size as Earth and do not have solid surfaces
14
Venus and Earth are much alike in terms of
their direction of rotation
their atmosphere
their rates of rotation
Their size and density
15
Moving objects continue moving in straight line and stationary objects remain in place is
orbital speed
inertia
gravity
mass
16
The asteroid belt is located...
between Earth and Mars
between Saturn and Uranus
between Jupiter and Saturn
between Mars and Jupiter
17
The two factors that combine to keep the planets in orbit are...
gravity and inertia
mass and inertia
gravity and orbital speed
orbital speed and mass

Milestones Practice 12, The Solar System Flashcards | StudBud