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# To measure the acceleration due to gravity using a pendulum

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Introduction

Length in (meters) 1 2 3 Average Time Time 1.0 21.06 20.46 21.06 21.02 2.10 4.41 0.9 19.84 19.56 20.01 19.80 1.98 3.92 0.8 18.75 18.43 18.78 18.65 1.86 3.47 0.7 17.68 17.70 17.78 17.72 1.77 3.13 0.6 16.32 16.15 16.06 16.06 1.61 2.61 0.5 14.84 14.59 14.65 14.65 1.50 2.25 0.4 13.22 13.18 13.06 13.06 1.31 1.73 0.3 11.56 12.32 11.87 11.87 1.19 1.42 0.2 09.59 08.56 08.75 08.75 0.89 0.80 To measure the acceleration due to gravity using a pendulum Introduction We were asked to find out measure the acceleration due to the gravity using a pendulum. ...read more.

Middle

Find the time for 10 swings, repeat this 3 times to get an average for 10 swings. Find the time for 1 swing record the results and calculate time in second. My prediction - as the piece of string gets longer the longer it will take to do a swing. Apparatus - We used a stand G-clamp, string, pendulum, stopwatch and a holder. ...read more.

Conclusion

The answer came to 4.12. My prediction - was that as the length of the string went up the time went up. This was correct and can be proved by looking at the graph. Changing - If I had to change anything to this experiment I would make it easier to measure the length of the string as it is extremely hard to get the exact length. Conclusion - From this experiment I have learnt that the length of the string attached to the pendulum effects the gravity force acting on the pendulum swing. By Ollie Prior ...read more.

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