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practice testMultiple Choice

Practice Test

Question 3 • Physics

Which statement is supported by Kepler’s laws?

Answer
A
As a planet moves away from the Sun, its gravitational force remains the same.
B
As a planet moves away from the Sun, its gravitational force increases.
C
The closer a planet is to the Sun, the faster it moves.
D
The farther a planet is from the Sun, the faster it moves.

Explanation

Kepler’s second law says that a planet sweeps out equal areas in equal amounts of time. To do this, it must move faster when it is closer to the Sun and slower when it is farther away. Therefore, the supported statement is “The closer a planet is to the Sun, the faster it moves.”

AI-written and checked against the verified answer.

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