How Does a Tennis Ball Bounce?

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Tennis balls bounce due to the pressurized gas that lies inside the balls. Find out how pressurized gas and compression force a tennis ball to bounce with information from a USPTA certified tennis pro in this free video on tennis equipment.

Part of the Video Series: Tennis Rackets & Maintenance
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Video Transcript

Hi, my name is Lincoln Ware, I am the Director of the Austin Tennis Center here in Austin, Texas. Today we're going to talk about how a tennis ball bounces. A tennis ball pretty much is a hollow sphere made of rubber with an outer layer of felt on it. The reason why tennis balls bounce is not necessarily due to that rubber, it's due to the added pressure, pressurized gas inside of the tennis ball. A tennis ball is pressurized to about twelve pounds per square inch. That allows the pressure on the inside to constantly want to force it's way out of the ball to get to more constant pressure on the outside. As the ball hits the ground or your tennis racket, the ball compresses, forcing that pressurized gas inside to push out and want to expand back out to it's circular shape, which forces it to bounce. That's how a tennis ball bounces. Thank you.


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