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My Aim is to see how the weights of cupcake holders affect the terminal velocity of them when they are falling to the ground.

Extracts from this document...

Introduction

Coursework on Terminal Velocity

Aim

My Aim is to see how the weights of cupcake holders affect the terminal velocity of them when they are falling to the ground.

Method

• Tie a length of string with a marking every meter from the balcony to the floor.
• Drop a paper cake case as it falls every time how long it takes to fall through each meter segment, to see if it reaches a steady speed.
• Repeat this two times and work out the average result to correct any timing errors.
• Add another paper cake case and repeat steps two and three again.
• Do this with one, two, three, four and five cake cases.

Apparatus

• String
• Pen (Marker)
• Cake Cases
• Meter ruler
• Stopwatch

Middle

Wind and a draft is a problem, I will try to do the experiment away from any doors and windows.

Prediction

I think that if a paper cake case is heavier it will fall faster, this is because it will take longer for gravity and air resistance to even out, this means a heavier object will have a higher terminal velocity. If the paper cake holders were in a vacuum they would both fall at the same speed.

Detailed Theory

The SUVAT equation can be used to find out how long it should take for the cake cases to fall if there was no air resistance.

Conclusion

">1

1.40

1.47

1.40

1.42

1.41

2

0.91

0.84

0.97

0.91

2.19

3

0.72

0.82

0.81

0.58

3.45

4

0.72

0.81

0.76

0.76

2.63

5

0.68

0.72

0.81

0.76

2.63

Conclusion

The more cases there were the faster they fell. This is because it will take longer for gravity and air resistance to even out; this means a heavier object will have a higher terminal velocity. If the paper cake holders were in a vacuum they would both fall at the same speed.

By Thomas Price 10.3/10E Mrs Strickland

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