Question

which of the following is an example of kinetic energy?
○ a baseball moving from the pitcher to the catcher
○ a rock sitting on top of a large hill
○ a pendulum at the top of its swing
○ a new flashlight battery

Explanation:

Kinetic energy is the energy an object has due to its motion. A baseball moving from the pitcher to the catcher is in motion, so it has kinetic energy. A rock on a hill, a pendulum at the top of its swing, and a new battery have potential energy (stored energy) rather than kinetic energy as they are not in motion (or the pendulum is at rest momentarily at the top, having gravitational potential energy there).

Answer:

a. a baseball moving from the pitcher to the catcher