Why do Basketballs Bounce?

the energy of motion

the potential to do something

The ball loses air.

The ball dents slightly.

The energy is stored as potential energy.

The energy is lost.

The floor dents slightly and stores energy for a moment.

The floor loses energy.

When the egg hits the floor, it dents slightly and stretches and bends.

When the egg hits the floor, its molecules do not stretch and bend. The egg smashes.