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# To investigate if a squash ball will bounce higher than its average room temperature bounce, once the temperature inside of the ball has increased.

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Introduction

12th June 2002 Kian Jafari Coursework - Height of bounce of a Squash ball Physics Department Experiment: Aim: To investigate if a squash ball will bounce higher than its average room temperature bounce, once the temperature inside of the ball has increased. Prediction: I predict that the ball will bounce higher than its average room temperature height once the temperature inside the ball has increased Hypothesis: I predict that the ball will bounce higher once it is heated because when the temperature increases, the gas inside the ball will too. The lower the pressure of the ball is, the easier it will change shape. When there is low pressure, the ball is deformed by the energy it uses when it hits the floor. The volume of the ball increases in pressure once again. ...read more.

Middle

4. We record our results from a ball at room temperature. 5. Then we gradually increase the temperature of the ball from room temperature by heating it in a water bath and recording the results and at a temperature increase at 10?C every-time, then bouncing the ball to aid our experiment results. Method Kian Jafari Results: Squash ball results - yellow dot squash ball (we used ball no.2) Please observe the attached graph Analysis We found out what happens to the ball once it is heated in a water bath, the height of the ball will increase in height and the more you increase the temperature of the ball, the higher it will bounce every time. We know this because air molecules inside the hollow ball which causes them to bump into each other more, and more quickly, creating energy. ...read more.

Conclusion

It may also slightly cushion the bounce or make the ball heavier. Human errors can occur when your eyes reaction cannot be precise about where you have seen the ball bounce up to. The solution to this maybe 'practicing' in watching its bounce by bouncing it a several times before recording the results or it can even be solved by letting the partner view the bounce after you have yourself, so you know if you have not made a mistake. Minor mistakes can include the water bath not being accurate. You will also find out that you cannot get accurate results when experimenting on one surface (odd surfaces). Different surfaces would cause a different bounce. I.e.on a table, on the floor or on the carpet. Make sure that the surface is rested and does not move when the ball hits it, the floor would be a good place to do this. These are several ways in approachingadditional and accurate results in this experiement ...read more.

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