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Arif Zaman 91200 Hon MatterEnergy Pd8 A Swinging Time Purpose To determine the factors that affect the period of a pendulum Hypothesis The factors that I think will affect the period of the pendulum are the displacement and the suspended mass because if the mass of the bob is a lot than it will take more force for the pendulum to swing and if theres a high displacement it will give the pendulum more energy to complete the cycle Materials stopwatch 100 200 and a 500g bob protractor meter stick string Procedures 1 Gather materials 2 Start the string at a length of 130cmcontrol 3 Attach a 200g bobcontrol to the bottom of the string 4 Make the displacement 30cm by pulling the bob 30cm away from the center Do this with a meter stick 5 Let go of the bob and allow one full cycle before starting the stop watch 6 Stop the stop watch after the bob returns 7 Record data 8 Repeat steps 1-7 with a displacement of 60cm Then try a displacement of 90cm 9 Now repeat steps 1-7 with a length of suspension of 130cm170cm and 210cm The controls are a bob of 200g and a displacement of 90cm 10 Finally repeat steps 1-7 with 100g 200g and a 500g bob The controls are a displacement of 90cm and a suspension of 130cm Observations controls-length of suspension 130cm bob 200g How Displacement Affects the Period of a Pendulum DisplacementPeriod 30cm272 seconds 60cm237 seconds 90cm234 seconds controls- displacement 90cm bob 200g How Length of Suspension Affects the Period of a Pendulum Length of SuspensionPeriod 130cm234 seconds 170cm255 seconds 210cm287 seconds controls- displacement 90cm length of suspension 130cm How the Bob Affects the Period of a Pendulum BobsPeriod 100g229 seconds 200g234 seconds 500g269 seconds Conclusion The purpose of this experiment was to determine the
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