Question

1 .A free falling object eventually stops on reaching the ground. What happens to its kinetic energy?
2.Why are sound waves called mechanical waves?

Answer 1

1. Kinetic Energy is transferred in environment such as it hits the ground then it's energy transfer or change into sound energy.
2. Becoz they need a medium for their propagation
Thnx..

Answer 2

2 becz they need a medium to travel