Question

1. which of these is an example of potential energy?

a) a dog running in the yard
b) a ball rolling down a hill
c) a roller coaster at the top of a hill
d) a raindrop falling from the sky

Explanation:

Potential energy is stored energy due to position or configuration. A dog running (a) and a ball rolling (b), a raindrop falling (d) involve motion, so they have kinetic energy. A roller coaster at the top of a hill (c) has stored energy due to its height, which is gravitational potential energy.

Answer:

c) A roller coaster at the top of a hill