Motion In Our Solar System Question Preview (ID: 57222)
Motion In Our Solar System.
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Earth spinning on its axis is its ____.
a) revolution
b) rotation
c) axial tilt
d) centripedal force
Earth's orbit around the Sun is its ____.
a) revolution
b) rotation
c) axial tilt
d) centripedal force
What is Earth's only natural satellite?
a) the Sun
b) the ISS
c) the Moon
d) our atmosphere
Why are the objects in our solar system spinning or moving in circles?
a) energy from the sun pushes us
b) volcanic energy inside Earth causes us to turn
c) the rotation of the Milky Way galaxy causes our solar system to turn
d) we formed in a spinning nebula
What force keeps planets and other objects MOVING in their orbits around the Sun?
a) Gravity
b) Inertia
c) Centripedal force
d) Acceleration
What force keeps planets locked in their orbits and not flying off into space?
a) Gravity
b) Inertia
c) Centripedal force
d) Acceleration
Theories are based on all available _____.
a) opinions
b) falsehoods
c) evidence
d) guesses
How long does 1 of Earth's rotations take?
a) 1 day
b) 1 week
c) 1 month
d) 1 year
How long does one of Earth's revolutions take?
a) 1 day
b) 1 week
c) 1 month
d) 1 year
Which of the folloing is NOT caused by Earth's rotation?
a) constellations moving across the night sky
b) sunrise and sunset
c) the 4 seasons
d) day and night
How are planetary orbits shaped?
a) elliptical
b) circular
c) rectangular
d) spherical
There is no ___ in space.
a) gravity
b) inertia
c) life
d) friction
Planets and other objects in our solar system orbit the Sun, because the Sun is the most _____ object in our solar system.
a) tiny
b) spacious
c) insignificant
d) massive
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