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ap physics tick tock extended

# ap physics tick tock extended - Patrick Mooney Tick Tock...

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Patrick Mooney Tick Tock Lab Extended Purpose: To investigate how the period of a pendulum varies with length. Procedure: First, set up a pendulum using a pegboard, some string, a hook, and an object. Make the length of the pendulum 65 cm and the height before the swing to be 5 cm. Then measure the time for 10 swings and record the results, doing so three times. Find the average of the three times, and then find the period of one swing by dividing that average by ten. Then, shorten the length of the pendulum by 5 cm and repeat the process until the length of the pendulum is 10 cm. Now, using the data, create two graphs, one with a graph of the period vs. the length and the other with a graph of the period squared vs. the length. From the second graph, predict the length of pendulum that would have a period of 2 s, and construct a pendulum of that length. Do three trials of ten oscillations, find the average, and divide by ten to find the period. Then, find the % difference between that period and 2 s.

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