A Full Investigation - Putting It All Together 🏓

In this investigation you are to record the relationship between the height a ball is dropped from, and the height of the ball's first bounce.

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Equipment: 

-Metre Ruler

-Ping Pong Ball (or another appropriate ball)

-Another Person

-A piece of paper and a pen/cil

-Camera (phone,ipad etc)

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Aim:

To investigate the relationship between the height a ball is dropped from, and the height of the ball's first bounce.

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Hypothesis:

That the ball will bounce higher when dropped from 20cm to 100cm.

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Method:

To do this experiment you will need; a ball that bounces (or another appropriate ball), a metre ruler, camera to video the bounce of the ball (recommend slow-mo) and at least one other person to help you. Get someone to hold the metre ruler and drop the ball, while someone is records it. Drop the ball at the same height at least three times to get your results back. I recommend you to drop the ball from numbers going down in twenty (100, 80, 60, 40, 20). After that re-watch the video's back and write down the measurement from below the ball when it bounced. After you have added the average up (1st drop + 2nd drop of the same number + 3rd drop of the same number then divided it by 3). Now you have found your results, you could make it into a graph to present what you have done/achieved.

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Key Variables:

Dependent Variables

The dependent variable/s is where the ball bounced up too. 

Independent Variables

The independent variable/s is the centre meters to sum it up it is the different heights the ball was dropped from on the ruler.

Control Variable/s

The control variable/s is the surface you dropped the ball on and the ping pong ball (or the ball you were using).

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My Results

          

Drop height(CM)	Trail 1	Trail 2	Trail 3	Average
20cm	12cm	10cm	12cm	11.3cm
40cm	20cm	17cm	15cm	17.3cm
60cm	35cm	36cm	36cm	36cm
80cm	47cm	47cm	47cm	47cm
100cm	51cm	51cm	51cm	51cm
		Height of first bounce

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 More might come soon...