The Solar System Answers
10 verified answers
1
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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.
3
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.4
Which correctly lists three scientists who supported the heliocentric model of the solar system?
A
Aristotle, Ptolemy, CopernicusB
Copernicus, Ptolemy, KeplerC
Galileo, Kepler, AristotleD
Kepler, Galileo, Copernicus5
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.6
Look at the diagram of the solar system.
A
orbit speedB
the phases of VenusC
retrograde motionD
the rising of the Sun7
Which two gaseous giants did Renaissance scientists such as Galileo know about?
A
Jupiter and SaturnB
Mars and NeptuneC
Neptune and UranusD
Uranus and Saturn8
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.9
Which describes one way that Aristarchus's explanation of the movement of objects in the sky was different from other scientists' earlier explanations?
A
He discovered Venus’s phases.B
He argued that Earth rotates on its axis.C
He explained the concept of retrograde motion.D
He described the epicycles of the planets in the sky.10
Why was it difficult for people to accept a heliocentric concept of the solar system?
A
Scientists had no way to explain retrograde motion.B
Scientists did not check or confirm other scientists’ ideas.C
Information was published in Italian and people could not understand it.D
Aristotle was famous and his ideas were supported by religious teachings.Did you find these answers helpful?
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