Bouncing Tennis Balls

What causees a tennis ball to bounce. What happens to a tennis ball when holes are cut in it and why does this happen? I'm working on my science fair- and I have a hard time explaining.
- Angelica (age 14)
Taunton, MA

We have answered a number of questions on bouncing tennis balls before.   Please go to the Physics Van website and type 'tennis balls' into the query box.

LeeH

(published on 11/01/2011)