Physics Pendulum Experiment

Done By: Alicia, Gloria, Jia Yi, Heng Yee, Joanna

How does the length of the string affect the time taken for one complete oscillation?

Purpose of experiment:

To find out whether the length of the string would affect the time taken for one complete oscillation of the pendulum.

Hypothesis:

If the length of the string increases, the time taken for a complete oscillation will increase as the distance between each swing would be longer.

Experiment Variables:

Independent Variable-Length of string

Dependent Variable-Time taken for one complete oscillation

Constant Variables:

-Weight of the bob

-Size of the bob

-Angle which the bob is released

Materials:

-10cm string

-30cm string

-Bob

-Stopwatch

4 Scenarios
1)

Explanation:

As the length of the string increases, the time taken for one complete oscillation increases.

2) 

Explanation: 

As the length of the string increases, the time taken for one complete oscillation decreases.

3) 

Explanation: 

The length of the string does not affect the time taken for one complete oscillation.

4) 

Explanation: 

The time taken for one complete oscillation is infinite.

Conclusion:

Only scenario 1 is correct. As the length of the string increases, the time taken for one complete oscillation also increases, hence only graph 1 is correct.