The Solar System Answers
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Which idea did Ptolemy’s model use to explain why the planets appeared to move backward as they moved in their orbits?
A
The planets spun in epicycles.B
The planets rotated on their axes.C
The planets revolved around the Sun.D
The planets were made of different materials.2
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Which idea was supported by Aristarchus, Copernicus, and Galileo?
A
The planets have epicycles.B
The planets revolve around the Sun.C
The stars rotate around the Sun.D
The center of the solar system is Earth.
4
How did Kepler’s discoveries contribute to astronomy?
A
They supported the heliocentric model.B
They established the laws of planetary motion.C
They explained how the Sun rises and sets.D
They made astronomy accessible to people who spoke Italian.5
Which event took place during the Copernican revolution, when most people started to believe in a heliocentric model of the solar system?
A
Aristotle developed his model of the solar system.B
Copernicus rediscovered Aristarchus’s heliocentric model.C
Kepler's laws of planetary motion.D
Newton’s theories of gravity were dismissed and considered invalid.6
In addition to proposing that planetary orbits are elliptical, what other modification did Kepler make to Copernicus’s model?
A
Planets closer to the Sun move faster.B
Planets spin in an epicycle while orbiting Earth.C
Venus has phases due to its orbiting of the Sun.D
Earth’s rotation causes the rising and setting of the Sun.7
What do comets and asteroids have in common?
A
They are made of ice.B
They orbit the Sun.C
They are made of metal debris.D
They are at the center of the solar system.8
Which two gaseous giants did Renaissance scientists such as Galileo know about?
A
Jupiter and SaturnB
Mars and NeptuneC
Neptune and UranusD
Uranus and Saturn9
How did Kepler describe the planets’ orbits?
A
The planets’ orbits are circular.B
The planets’ orbits are elliptical.C
The planets and the Sun orbit Earth.D
The planets have miniature orbits called epicycles.10
Look at the diagram of the solar system.
A
orbit speedB
the phases of VenusC
retrograde motionD
the rising of the SunDid you find these answers helpful?
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