Item EG012002: A ball has more motion energy than a person when the ball is moving and the person is not moving.

A girl is sitting in a chair and throws a ball. After she throws the ball, she watches the ball move through the air. While the ball is moving through the air, does the girl or the ball have more motion energy (kinetic energy) and why?

  1. The girl has more motion energy because she is alive, and the ball is not.
  2. The girl has more motion energy because she weighs more than the ball.
  3. The ball has more motion energy because it is moving, and the girl is not.
  4. The ball has more motion energy because it is higher off the ground than the girl.