Question

imagine that you drop a ball . It bounces a few times , but then stops . Your friend says that the ball has lost all of its energy . Using what you know about the of conservation of energy , respond to your friend

Answer 1

Energy cannot be created or destroyed, meaning that energy cannot be “lost”. Instead, all of the energy has been transferred out of the ball when it was dropped. Though the ball would still have some energy, such as the energy of gravity acting in it, it just wouldn’t have kinetic energy as it has stopped moving.