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Word Count: 277
Laboratory topic 10 In this experiment we will observe the properties of a pendulum moving in a circular motion rather than the traditional back and forth motion This will simulate the direction that a satellite would follow above the earths atmosphere The purpose of this experminate will be to show how gravity pulls on the string and the path that the pendulum follows Apparatus used 1 Pendulum with long string4 Digital stop watch 2 pendulum clamp5 two-meter stick 3 circular path draen on paper6 vernier caliper procedures hang the pendulum for the attached rod and allow the pendulum so its nearly to the floor Then align the ball with the center of your circled paper and center the pendulum onto the circle Practice rotating the pendulum so it follow the circle that you have made After you have practiced this a few times make a mark on the circle this is your starting point Start the pendulum into motion so it will follow its path on the paper and after it has made a complete reveloution that is your first turn Using your stop watch start timing the reveloutions that it has made You can use as many turns as you like just remember that you must make 1 complete turn before stateing that it is one turn Data Average radius of pendulum arc 305cm Converted to Meters - 0153m Length of pendulum string to the top of bob - 1618cmBob diameter 25cm Pendulum length to center of bob - 16305cmAngle of string from vertical 538 Time for 4 reveolutions 1057 seconds Average period 2643seconds Average speed 2376 msec 15251000 0153m364msec 2376 msec Am 865 msecAp 923 difference am ApAp 100 -628
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