4al Lab #6.14

4al Lab #6.14 - CONCLUSION This lab focused on the analysis...

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DATA ANALYSIS There were various sources of random error and systematic error in this lab. Random error included error in the measurements taken with both the ruler (used to measure the dimensions of the pendulum). Another example of random error in this lab would be error in the timing of the photogate that measured the oscillations in part one. The timing might not have started exactly when the pendulum was let go of which could have skewed the results. Also, the friction in the bearings of the pivot could have caused the pendulum to slow slightly and skew the results. Also air resistance might have also caused the system to slow down slightly. The only systematic error that we could have made in this lab was during part two. We did not allow enough time for the pendulum to reset when changing the frequency and just started recording data right away which might have led to slightly inaccurate results.
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Unformatted text preview: CONCLUSION This lab focused on the analysis of an oscillating pendulum system. In the first part of the lab, this system was subjected to underdamped, critically damped, and overdamed oscillations of the pendulum. The damping force was created using a pair of magnets set at opposite sides of the pendulum and adjusted various distances from the pendulum on both sides to increase or decrease the damping force. The 50mm and 20mm magnet gaps resulted in underdamped systems. The 13.5mm gap was close to the critical damping. And the 10mm and 5mm magnet gaps were examples of overdamping. It can be concluded that the closer the magnets were to the pendulum, the more damping force on the system. We found that the critically damped examples showed an exponential relationship in that motion slowed very rapidly. For the undamped system, the theoretical frequency was calculated to be 0.7144 ± 0.002...
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