AP Physics 1 Scoring Guide
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?
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?
https://www.stuvia.com/
, AP Physics 1 Scoring Guide
Unit 3 Progress Check: MCQ Part A
A
B
C
D
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?
https://www.stuvia.com/
, AP Physics 1 Scoring Guide
Unit 3 Progress Check: MCQ Part A
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?
https://www.stuvia.com/
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?
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?
https://www.stuvia.com/
, AP Physics 1 Scoring Guide
Unit 3 Progress Check: MCQ Part A
A
B
C
D
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?
https://www.stuvia.com/
, AP Physics 1 Scoring Guide
Unit 3 Progress Check: MCQ Part A
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?
https://www.stuvia.com/
