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How the height will affect the bounce of a ball

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How the height will affect the bounce of a ball

I will be investigating how the height of which a squash ball is dropped affects how high it bounces.

Here are some possible factors that may affect the bounce:

Temperature: the temperate that the ball is may affect its bounce height. This is because inside the squash ball there is nitrogen in a as state and when you heat gases the pressure rises. This would make the ball bouncier.

Surface: The surface will also affect the bounce as it will bounce higher on a hard surface rather than a soft surface.

Colour of the dot on the squash ball: different colours represent different amounts of gas in the ball.

Way ball falls: to make sure this investigation remains a fair test I will drop the ball the say way each time.

Mass of the ball: the greater it’s mass the faster it will fall.

Surface area of the ball: the greater the surface area, the more air resistance will affect it.

The factor I have chosen to investigate is height. I predict that:

‘The higher the squash ball is dropped from, the higher the bounce height will be’

Why Objects Fall

Objects fall due to gravity.

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As I have stated earlier I predict that the height from which the ball is dropped the higher the ball will bounce. Here is a simple sketch of what I predict the graph to look like:


I predict that the higher the drop height the higher the ball will bounce because the higher it is dropped the more GPE it will have. Then once it is dropped the greater the speed it will reach because the GPE will have transferred into kinetic energy as I have mentioned earlier. I higher the amount of kinetic energy it hits the wooden table with the more of which will be transferred

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I only had a small anomaly on my efficiency graph where a drop was more efficient being dropped from a higher height than a lower one.

Further Work

I feel that further work would give me additional relevant evidence.

Firstly, I would like to try higher heights to see how inefficient the bounce could get. Also, if it were possible, I would like to measure the heat being given off from the ball when it hits the table.


Overall, I think that I effectively achieved my aim. I believe I used my scientific knowledge to explain my results and analyse them. My investigation successfully proves that drop height affects the height of the bounce of a squash ball.

...read more.

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