the factors which affect the time for one full oscillation of a pendulum
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... then stopped the stopwatch after the tenth oscillation. I used a range of 10cm to 100cm to use a suitable range of measurements. I also repeated each length 4 times to make the average gained more reliable and to allow for any anomalies. To make the results more accurate I also counted 10 oscillations meaning if you divide the period by ten your reaction time, which affects the length of the period, is reduced by 9/10. To make sure this was as fair a test as possible I: ? Tried to create as little friction as possible where the string is attached to the clamp. ? Let go with out adding any extra forces ? Kept the string taut ? Made sure the mass and angle remain the same in case they have a small effect on the period. ? Keep the whole experiment in the same place so that the gravitational field strength does not change To make this a safe experiment: ? No weight above 400g ? No angles above 90º ? The clamp stand is secure
Results: A Table to show the periodic time for 10 oscillations for various lengths
Periodic time (seconds) Length (m) 0·1 6·1 6·1 6·1 6·0 Average periodic time: 6·08 0·2 8·6 8·7 8·6 8·7 Average periodic time: 8·65 0·3 10·2 10·3 10·3 10·3 Average periodic time: 10·28 0·4 12·6 12·4 12·6 12·3 Average periodic time: 12·48 0·5 14·0 14·1 13·9 13·8 Average periodic time: 13·95 0·6 15·2 15·3 15·3 15·3 Average periodic time: 15·28 0·7 16·4 16·4 16·5 16·6 Average periodic time: 16·48 0·8 17·8 17·6 17·5 17·7 Average periodic time: 17·65 0·9 18·8 18·5 18·4 1 ...
