# Hacktivateed

26

## How does temperature affect the height of a tennis ball?

A tennis ball is a hollow rubber core that contains pressurized air within it. Changing the temperature of the ball affects the pressure of the air inside the ball and, in turn, the height to which it bounces.

## How does the temperature of a tennis ball affect the height of its bounce science fair?

When the temperature increases, the gas molecules inside the tennis ball expand. As the molecules expand, their energy increases as they bounce around more erratically. This increased energy and movement results in a higher bounce.

How does temperature affect the coefficient of restitution of a tennis ball?

temperature of the rubber will result in an increase in Young’s modulus, or in other words, a decrease in the compression distance of the ball. Less energy will be dissipated in each bounce, leading to an increase in the coefficient of restitution.

### Is the height of a bouncing ball an example of a hypothesis?

Purpose: To determine how high a tennis ball will bounce when dropped from a specific height. Hypothesis: If a tennis ball is dropped from a specific height then the ball will bounce to the same height….Data Table 2: Average Bounce Height at Each Height:

Drop Height (cm) Average Bounce Height (cm)
60 30.
80 40.
100 51

### Does temperature affect bounce height?

A warmer ball will bounce higher than a cold one. The reason for this is twofold. In a hollow ball, the change in temperature causes a change in air pressure within the ball. The other way in which temperature influences the height a ball bounces is by impacting its elasticity.

Why are tennis balls kept in the fridge?

Throughout history, fridges have been deployed at the side of courts to maintain the consistency of bounce in every ball while they’re waiting to be used. The 53,000 balls used at the tournament will be kept at 20 degrees until it’s their time to shine.

## Does temperature affect coefficient of restitution?

The temperature of the ball influences its coefficient of restitution. A warmer ball will bounce higher than a cold one. There are two reasons for this. In a hollow ball, the change in temperature causes a change in air pressure within the ball.

## What affects the bounce height of a ball?

The combination of the material properties of a ball (surface textures, actual materials, amount of air, hardness/ softness, and so on) affects the height of its bounce.

Why does a bouncy ball bounce so high?

Explanation: When all three balls are dropped from the same height, the rubber ball will bounce the highest because it has the greatest elasticity. When the rubber ball hits the ground it gets compressed, or squished, and because it is very elastic, it quickly returns to its original shape.

### Do tennis balls bounce less in cold weather?

Tennis balls do not bounce as high in the cold. So when a ball gets cold, the gas molecules begin to contract inside. This makes tennis balls react less when the ball contacts the ground, in other words, less bouncy.

### Are Wimbledon tennis balls kept in a fridge?

During the Wimbledon Tennis Championships, 54,250 tennis balls are used. When they are not being used for a match, the balls are refrigerated. Wimbledon previously used white tennis balls, but these were replaced by yellow ones because these showed up better on television.

How does temperature affect tennis ball bounce height?

Annie and Giuliana’s science fair experiment tests the hypothesis that warmer tennis balls will bounce higher than frozen ones. The hypothesis was confirmed as the room temperature balls bounced twice the height of the frozen ones.

## What are the results of the tennis ball experiment?

Repeat experiment 2 more times to produce accurate results 9. Find the average for the results from the cooler tennis ball then the average of the normal tennis ball and record them down. Conclusion: The bounce of the cooler tennis balls is smaller than that of the normal tennis ball which is evident through the results.

## What’s the difference between heated and frozen tennis balls?

You should find that the heated balls bounce the highest, followed by the room temperature balls, then the refrigerated balls, with the frozen tennis balls bouncing the least. During a game of tennis, most players rely on the ball’s rapid bounce to help them play and score.

What happens when a tennis ball hits the ground?

When a tennis ball hits the ground, the force presses against the ball, pushing the bottom surface of the ball in to the core and compressing the gas inside of it. (Sheehan, 2011)On impact, the gas will be caused to move toward the ground.