Question

what happens when a tennis racket hits a ball? (1 point)
kinetic energy is transferred from the racket to the ball.
kinetic energy is created.
potential energy in the racket is transferred to the ball.
kinetic energy is transferred from the ball to the racket.

Explanation:

According to the law of conservation of energy, energy cannot be created or destroyed. When a tennis racket hits a ball, the racket is in motion (has kinetic energy). The ball, initially at rest (or moving less), gains kinetic energy. So, kinetic energy is transferred from the moving racket (which has kinetic energy) to the ball. Potential energy is related to position (e.g., height, spring - like compression) and not relevant here as the racket's energy is due to its motion (kinetic). And the transfer is from racket to ball, not the other way around.

Answer:

Kinetic energy is transferred from the racket to the ball.