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Find out if changing the length of the string on my apparatus would affect the time taken for the pendulum to make one full swing.

Extracts from this document...

Introduction

Physics AT1

Objective of my investigation

 The objects of my investigation is to find out if changing the length of the string on my apparatus would affect the time taken for the pendulum to make one full swing.

Apparatus

Stand

Boss

Clamp

String

Masses

Split Cork

Diagram

Hypothesis

I believe that as the string is shortened, the time taken for the pendulum to make one full swing will de-crease, as the masses will swing faster.

Fairness of test

To keep the test fair I will only make adjustments to the length of the string. Also to ensure that the angle at which the pendulum is released is kept constant I will use another piece of string, which is attached

...read more.

Middle

T = Time (meters per second (m/s))

L = Length of pendulum in meters

G = Acceleration due to gravity (9.81 m/s²)

Results Table

Length

(m)

1

(sec)

2

(sec)

3

(sec)

4

(sec)

5

(sec)

Average Time

(sec)

...read more.

Conclusion

 The fact that both sets of results were close in comparison to each other proves that the results are reliable ones.

 I believe that there is little I could do to improve on my current results, but I think that if I was to perform my investigation again I would;

  • Change the mass whilst keeping the angle of the swing and length of the string the same.
  • Change the angle of the swing whilst keeping the length of the string and the mass the same.

I would do this in order to compare which factor effects the pendulum ‘swing rate’ the most.

...read more.

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