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# The aim of the experiment is to find out which of the different shapes/sized parachutes work most efficiently.

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Introduction

Aim: The aim of the experiment is to find out which of the different shapes/sized parachutes work most efficiently.

Prediction: My prediction is that the parachute with the largest area will be the most efficient. I think this will happen as the larger area will grab the most air resistance making it last longer in the air and safer to use.

Apparatus part1:

Piece of thin card in the shape of a circle (approx. diameter 30cm)

Polythene Sheet

Sellotape

Paperclips

Ruler

Stop clock

Scissors

Apparatus part2: How to make the parachute?

1. Place the card circle over the sheet of polythene and carefully cut round it. You now have a polythene circle.
2. Cut 7 or 8 pieces of cotton thread, each about 40cm long. Take care to keep them separate.
3. Use Sellotape to stick the threads around the polythene circle. (Don’t tangle them)

Middle

Now repeat the above now with 4 paperclips.Add more paperclips, recording your results each time.Do you think that changing the size of the parachute will change the time taken to fall? Test your ideas.

Results:

These are the results for the first parachute:

 Test Number Time Taken to hit floor in secs 1 1.63 2 1.67 3 1.42 4 1.98 5 1.79 6 1.93 7 1.41 8 1.35 9 0.87 10 1.27

The average time is about 1.605 seconds.

Below are the results in the form of a line graph.

Conclusion

I must say that these results I obtained from someone else, but I fell I should also say that these results to me seem flawed as they are to scattered and to me I feel that either the parachutes weren’t made properly or that the people who record the results didn’t record them properly, but these results did prove my theory and I am happy about that.

This experiment to me should have been differently if not my way then an efficient and more reliable way.

This student written piece of work is one of many that can be found in our GCSE Forces and Motion section.

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