Question

A truck at the top of the hill has higher gravitational potential energy then when it is at the bottom of the hill. Why does it roll downhill?

1. To increase its kinetic energy
2. To lower its potential energy
3. To increase the entropy of the universe
4. To decrease the entropy of the universe

Answer 1

An object that goes up a hill will be going at a slower speed at the top than at the bottom of the hill. This is because moving up or down a hill changes one kind of energy into another. Objects at the bottom of the hill have more kinetic energy, which means they are moving faster.

Step-by-step explanation: