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• Level: GCSE
• Subject: Maths
• Word count: 1266

# An Investigation To Find Out The Relationship Between The Bounce Height And Drop Height Of A Ball.

Extracts from this document...

Introduction

Natasha Williams

An Investigation To Find Out The Relationship Between The Bounce Height And Drop Height Of A Ball.

Aim : I am going to find out the relationship between the bounce height and                    the drop height of a ball.

Preliminary Work

I am first going to do a preliminary experiment to determine what the best heights are to drop the ball from and to see what type of ball will give me the best results.

Equipment : 2 types of ball- a ping pong ball

- a bouncy ball

a metre stick

pencil

cellotape

Plan : I am going to use two types of ball ; a ping pong ball and a rubber bouncy ball. This will give me two tables of results so that I can compare them and decide which ball to use in my actual experiment. I will tape a metre stick to the edge of a bench with cellotape so it will be kept steady. I will drop each ball from five different heights ; 50cm, 40cm, 30cm, 20cm and 10cm. I will get a friend to drop each

Middle

Safety : I will secure an area around the metre sticks that no-one else, apart from me, will be allowed in. So that if the ball bounces off at the wrong angle no-one will be hurt. I will make sure that I bounce the ball on a smooth surface so that the ball will bounce straight back up to me.

Fair test :To keep the experiment a fair test my only variable will be the height that the ball is dropped from. I will use the same ball for each experiment because another ball could produce a different result and I will have the same person dropping the ball each time.

Prediction : I predict that the ball won’t bounce back up to it’s original height and that the height I record for the bounce will be lower. I predict this because the ball will have lost some of it’s energy during it’s journey and won’t have enough to get back to it’s starting height.

Scientific evidence :Before a ball is

Conclusion

The results I got were quite accurate apart from the anomalies because I did the experiment three times and the results were all quite close together.

If I were to do this experiment again with any equipment I would use a camera to film the ball bouncing and then I could calculate where the ball bounced to before it fell back down. This would make the experiment more accurate.

The experiment was as much of a fair test as I could get it but it probably could of been fairer. I used the same ball on the same surface but sometimes the ball wasn’t dropped from the same height each time so it could’ve been a few centimetres different. Also on some occasions the ball could’ve bounced off at a different angle.

In conclusion the drop height does effect the bounce height so that the higher the drop height, the higher the bounce height.

This student written piece of work is one of many that can be found in our GCSE Height and Weight of Pupils and other Mayfield High School investigations section.

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