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# An Investigation into the factors of what affects the height at which a dropped squash ball bounces

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Introduction

An Investigation into the factors of what affects the height at which a dropped squash ball bounces. In this investigation I intend to investigate the factors which affect the height of the bounce of a squash ball. Factors which can affect the bounce height Height-The higher the squash ball is dropped the higher it will bounce because there will be more energy converted into elastic energy to propel the ball back up. Type of Ball- The type of ball would greatly affect the experiment because different types of balls have different amounts of elasticity so some would bounce higher. Temperature of the Ball- The temperature of the ball would affect the experiment because the warmer the ball is the more energy and elasticity it will have. Landing Surface- Different types of surface will affect the bounce height because an elastic landing surface will absorb some of the energy, lowering the bounce height. However a rigid landing surface will absorb very little of the energy thus giving the ball a higher bounce height. The variable in my experiment is going to be drop heigt because I do not have the knowledge or the resources to do the other variables. ...read more.

Middle

Obtaining evidence I carried out the experiment as described above and these were te result I recorded, I did the experiment 3 time so an average could be worked out hich would reduce the chances of an error in the results. Drop Height (cm) Bounce height experiment 1 Bounce height experiment 2 Bounce height experiment 3 Average Bounce 25 10 8 9 9 50 16 16 15 15.6 75 20 22 23 21.6 100 28 32 28 28 125 30 31 30 30.3 150 38 36 37 37 175 47 46 44 45.6 200 52 52 53 52.3 The outcome was what I predicted because as shown the higher the ball was dropped the higher it bounced. There is only 1 anomaly which was in experiment 2 from a height of 100 cm this one doesn't seem to be correct because the next distance up produced a smaller bounce height. Analysing Data As shown in the data the higher the ball was dropped from the higher it bounced. This is because the higher it was dropped from the more energy would have been transferred to it in the form of potential energy, and when it was released it would have more time ...read more.

Conclusion

Also the average line is not perfectly drawn however this is entirely human error, not an error in the results. Conclusion In conclusion I have determined that the higher the squash ball is dropped from the higher it will bounce this is because it will have gained more potential energy as it was lifted therefore as it falls it will be transferred into kinetic energy and when it hit's the ground as it has been travelling faster there will be a greater force which compresses the ball and then the elasticity of the material will send it back up. Overall I feel the experiment went well. If I were to do the experiment again I would certainly use larger drop heights, maybe measured in meters as this would really show if the graph of results was curved or not. Also I would use a more accurate way of measuring the bounce height, as I feel that the way that I used was not accurate enough. Also I would have like to have drawn the graph again however I was unable to as I only had one piece of graph paper. All in all I am pleased because the experiment went well, there were few errors and it was an interesting investigation. ?? ?? ?? ?? ...read more.

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