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# Parachutes: Does Size Matter?

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by

## Brett Owen

on 1 December 2010

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#### Transcript of Parachutes: Does Size Matter?

Parachutes: Does Size Matter? Experiment Question - Do bigger parachutes work better than smaller parachutes? Independent Variable Size of the parachute. Dependent Variable The time it takes for the parachute to reach the ground Constants garbage bags
washers
twist ties
strings
stopwatch Hypothesis When the size of the parachute increases, the parachute will take a longer time to reach the ground, making it better. Materials heavy weight garbage bags
metric ruler
scissors
washers
twist ties
light weight string

Size (cm) Trial 1 Trial 2 Trial 3 Trial 4 Average

20 cm 0.75 sec. 0.81 sec. 0.72 sec. 0.65 sec. 0.73 sec.

30 cm 0.87 sec. 0.93 sec. 0.87 sec. 1.00 sec. 0.92 sec.

40 cm 1.10 sec. 1.25 sec. 1.16 sec. 1.22 sec. 1.18 sec.

50 cm 1.31 sec. 1.41 sec. 1.44 sec. 1.28 sec. 1.36 sec. Conclusion My hypothesis was that the bigger the parachute was, the more time it would take for it to reach the ground. My results do support my hypothesis. The smallest parachute took 0.75, 0.81, 0.72, and 0.65 seconds, and the biggest took 1.31, 1.41, 1.44, and 1.28 seconds. As the size increases, the numbers go up.
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