What affects the bounce of a Squash Ball?

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What affects the bounce of a Squash Ball?

Aim

The aim of my experiment is to discover how altering the temperature of a squash ball affects its bounce.

Variables

  • Changing variable:

The variable that I will be changing is the temperature. I will be raising and lowering the temperature of the water contained in the beaker to change the temperature of the squash ball, and use my results to find out how the change of temperature affects the height of bounce of the squash ball. The input variable is heating the squash ball and therefore the output variable is the height the ball reaches.

  • Fixed Variables:

The material of the squash ball must be kept constant throughout the experiment, as it could interfere with the results if changed.

The size of the ball is kept constant to sustain a fair test. I will also be dropping the ball vertically to keep the angle variable constant. Therefore, it will hit the ground at a 90° angle each time.

The mass of the squash ball must be kept constant. A squash ball with a higher mass would be unable to bounce as high as a ball with a lower mass; therefore this could create an error in our results. Therefore I will use the same squash ball for every reading.

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I am going to drop the squash ball onto the same lab surface throughout.

These variables will be kept constant in order to ensure that the experiment is a fair test.

Safety

I will be wearing goggles and working around a clear area of drop zone to ensure that I do not injure myself or any other pupil working on the same experiment. The main hazards will be the hot water and the squash ball.

Apparatus

1 squash ball, 1 metre rule (graduated in mm), a Bunsen burner, a beaker, a ...

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