9. Two Ball Bounce
Materials Needed: One large and one small ball and a room with a high ceiling.
This experiment is very simple and it doesn’t require any dangerous and special materials. Take the two, one large and one small ball and place the small ball on top of the larger ball. After you do this, drop the balls. Do you know what will happen to the balls after you drop them together? The two balls will separate a little. The ball which is on the bottom, the larger one will hit the floor first and while rebounding it will hit the smaller ball on the top and you will get a collision with balls of different masses. After a few bounces, the smaller ball will start to bounce higher.
