Unit 3 Progress Check: MCQ Part A Planet X has a mass of and a radius of . Planet Y has a mass of and a radius of . Identical satellites orbit both planets at a distance above their surfaces, as shown above. The planets are separated by such a large distance that the gravitational forces between them are negligible. 1. How does the magnitude of the gravitational force exerted by Planet Y on its satellite compare to the gravitational force exerted by Planet X on its satellite?
Planet X has a mass of and a radius of . Planet Y has a mass of and a radius of . Identical satellites orbit
both planets at a distance above their surfaces, as shown above. The planets are separated by such a large distance that
the gravitational forces between them are negligible.
1.
How does the magnitude of the gravitational force
exerted by Planet Y on its satellite compare to the
gravitational force exerted by Planet X on its satellite?
(A)
(B)
(C)
(D)
2.
How does the gravitational field at the surface of Planet X compare with the gravitational field at the surface
of Planet Y?
(A)
(B)
(C)
(D)
AP PHYSICS 1 Scoring Guide
Unit 3 Progress Check: MCQ Part A
AP Physics 1
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A moon orbits a planet in a nearly circular orbit of radius , as shown in the figure.
3.
Which of the following free-body diagrams could be used to analyze the forces exerted on the moon when it is at
the position indicated in the figure?
Scoring Guide
Unit 3 Progress Check: MCQ Part A
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AP Physics 1
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(A)
(B)
(C)
(D)
4.
The moon has a mass of
, and the gravitational field strength at a distance from the planet is
. What is the gravitational force exerted on the moon while it is in orbit around the planet?
(A)
(B)
(C)
(D)
Scoring Guide
Unit 3 Progress Check: MCQ Part A
AP Physics 1
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