Question

a ball is lifted to the top of a hill and then allowed to roll down. at the very top of the hill, the ball has mostly: b. potential energy d. sound energy c. thermal energy a. kinetic energy

Explanation:

Potential energy is energy due to an object's position. At the top of the hill, the ball is at a height and has not started moving yet. Kinetic energy is for moving objects, sound energy is produced by vibrations during motion, and thermal energy is related to heat. So it has mostly potential energy.

Answer:

B. Potential energy