Two identical 1 kg rocks are held 1 m above the surface of the Earth (g = 10 m/s2) and moon (g = 1.6 m/s2) . Just as they are released, which rock has more potential energy? A.
The rock on the Earth has more potential energy because it is farther from the center of the Earth than the rock on the moon is from the center of the moon.

B.
The rock on the Earth has more potential energy because the acceleration due to gravity on Earth is greater than the acceleration due to gravity on the moon.

C. They have the same potential energy because they are the same height off the ground.

D. They have the same potential energy because they have the same mass.