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To investigate how the size of a parachute effects acceleration of the blutac attached to the parachute.

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Introduction

Investigating the effects of forces and acceleration

Aim

To investigate how the size of a parachute effects acceleration of the blutac attached to the parachute.

Information I already know

The bigger the surface area of the parachute the more the air resistance builds up underneath the parachute, which causes it to float gently to the ground.

Safety

To get to a sufficient height I must stand upon a table, to make this experiment safe I will make sure not to fall, as this would cause harm to myself and the people around me.

Apparatus

String

Paper

Blutac

Scissors

Sellotape

Stopwatch

Fair test

To make my experiment fair I will drop the parachute from the same height each time, keep the weight of the blutac the same and place the blutac in the same position on the string each time.  If I were to change any of these it would make an error in the results.

Measurements

...read more.

Middle

Results

1st parachute (10cm by 10cm)

2nd parachute (15cm by 15cm)

3rd parachute (20cm by 20cm)

1.33 s

1.09 s

1.43 s

0.67 s

1.13 s

1.77 s

0.14 s

1.16 s

1.93 s

0.

...read more.

Conclusion

      If I were to do this experiment again I could improve it by dropping each parachute more than ten times to make my results that more accurate.  

      I could extend my investigating further by making more parachutes and trying different materials.  I could also do an investigation using the same sized parachute but change the weight each time, this would tell me the relationship between the force and the weight.

...read more.

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