Answers2001310 Earth Science Sem 1 - PearsonThe Solar System

The Solar System Answers

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1
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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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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.
3

Look at the diagram of the solar system.

Question illustration
A
orbit speed
B
the phases of Venus
C
retrograde motion
D
the rising of the Sun
4

Which two gaseous giants did Renaissance scientists such as Galileo know about?

A
Jupiter and Saturn
B
Mars and Neptune
C
Neptune and Uranus
D
Uranus and Saturn
5

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.
6

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.
7

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.
8

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

Look at the image of the solar system.

Question illustration
A
W
B
X
C
Y
D
Z
10

Why was Copernicus’s heliocentric model not believed until Galileo and Kepler provided more evidence?

A
The model had the moon orbiting Earth.
B
The model was against religious teachings.
C
The model could not explain retrograde motion.
D
The model did not include all eight planets in the solar system.

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