# What makes a tennis ball bouncy?

As the air pushes against the inside of the ball it creates pressure. When the ball hits the ground the air trapped inside the ball is forced inwards. When the air on the inside pushes back the ball is propelled back off the ground, thus creating the bounce.

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The tennis ball bounces higher because the relative speed when it bounces off the basketball is almost double that for when it hit the ground.

Beside above, which surface does a tennis ball bounce the highest on?

grass

## Keeping this in consideration, how long before a tennis ball lose its bounce?

Tennis balls will go bad after about 2 weeks or 3-4 playing sessions. Unopened tennis balls are kept in a pressurized tube to help them retain bounciness and firmness, but even those will expire after two years (due to very tiny leaks).

## Why do balls eventually stop bouncing?

When the basketball hits the floor, some kinetic energy that the ball has is transferred into another form of energy. … This is because the basketball had an inelastic collision with the ground. After a few bounces, it stops bouncing completely. The energy has left the ball!

## Why do stacked balls bounce higher?

When a golf ball collides with a basketball, the golf ball recoils at high speed in part because of the big difference in mass between the two balls. When a light object meets a heavy object, the heavy object hardly changes velocity. The light object recoils much quicker.

## Why do the balls react differently when dropped together?

Both the basketball and the tennis ball are moving at the same speed right before they hit the ground. This means they both have some amount of kinetic energy, but the basketball has more due to its larger mass. After the collision, the basketball has a very low speed and thus very little kinetic energy.