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# Simple Pendulum Experiment. Aim: To determine the acceleration due to gravity,g, using a simple pendulum.

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Introduction

Date: Feburary 8,2012 Title: Simple Pendulum Aim: To determine the acceleration due to gravity,g, using a simple pendulum. Apparatus: wooden blocks, thread, stand, meter rule, stopwatch, bob, boss & clamp. Procedure& Precautions: A string measured to be over 1 meter, so as when it's length was being adjusted there was enough string to pull on from between the wooden blocks, was tied to a bob. The end of the string was then placed between two wooden blocks and adjusted so that the length of the pendulum was 1 meter. ...read more.

Middle

The angle at which the pendulum is drawn out to should be small. The smaller the angle, the closer the harmonic motion it will behave because the restoring force is acting tangent to the arc - the pendulum moves through instead of being outside of it. The time taken for 20 oscillations with the length of the pendulum being 1 meter was recorded but was also repeated for accuracy. ...read more.

Conclusion

38.25 1.913 3.83 0.800 36.15 36.20 36.18 1.809 3.27 0.700 33.94 33.96 33.95 1.698 2.88 0.600 31.63 31.55 21.59 1.580 2.50 0.500 28.81 28.75 28.78 1.439 2.07 0.400 26.02 26.05 26.04 1.302 1.70 0.300 22.86 22.88 22.87 1.144 1.30 Calculations: Gradient = Y2- Y1 X2 - X1 =0.97 - 0.35 = 0.62 = 0.248ms-2 4.00 - 1.50 2.50 Gradient = g g= gradient * g = 0.24ms-2 * 39.48 = 9.79 ms-2 Conclusion: Using a simple pendulum, the acceleration due to gravity was concluded to be 9.79 ms-2. ...read more.

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