DETERMINATION OF G WITH SIMPLE PENDULUM

This experiment is to determine the value of g   by finding time(t) taken for a number (n) of oscillation for different value of L. A table of time     and L is then obtained.

A graph of L  against       will be a straight line . The slope of the graph  will be   . The value of g can be obtained from the slope of the graph.

Slope =   

Example

In an experiment to determine acceleration due to gravity g, the slope of the graph    obtained during  the experiment was . What is the value of g ? take

Solution

Slope =    

Precautions  to be taken for this experiment

1. The amplitude of oscillation must be very small.
2. The string should be very light and in extensible
3. The support  must be rigid
4. The counting of the number of oscillation must be done painstakingly

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