SAT Subject Physics Practice Question 676: Answer and Explanation

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Question: 676

12. A large object is placed at exactly 55% of the distance to the moon from the earth. Eventually the object will

A. fall to the sun.
B. fall to the moon.
C. fall to the earth.
D. remain in the same place.
E. drift out of the solar system.

Correct Answer: C

Explanation:

The correct answer is (C). The moon is only 1/6 the size of the earth, so at a distance 55% of the way to the moon, the object is still under the influence of the earth's gravitational field. That means the object will eventually fall back to the earth.

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