SAT Subject Physics Practice Question 563: Answer and Explanation

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Question: 563

4. The length of time a satellite takes to orbit the earth depends on its

A. launch speed.
B. mass.
C. distance from the earth.
D. weight.
E. orbital direction.

Correct Answer: C


The correct answer is (C). The closer a satellite orbits the earth, the faster its period of rotation. The farther a satellite orbits from the earth, the longer its period of rotation.

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