experiment number 11 vibrating string

# experiment number 11 vibrating string - Old Dominion...

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Old Dominion University PHYS 111N Experiment P11: Vibrating String Submitted by: 4 th of December 2012 9am Maria Piarulli

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Introduction : In this experiment, our group studied the movements of a string that was being shaken at one end to discover the characteristics of a wave. Data : In this experiment, we used a string tied to a rod and then run over a pulley. The string was the medium for the waves and it also had a mass hanging from the pulley. This allowed us to apply a known tension to the string for further calculations after the lab was done. To create waves we used a speaker and a power amplifier to set the exact frequency that we wanted to achieve. This allowed us to create different wavelengths and a different number of nodes. We then measured how long each node was. From that we calculated the frequency, wavelength, period, and the velocity. Data Analysis: Part A Question: 1) Examine the velocity graph you plotted. Did your data points fall nicely on a straight line? Based on the percent difference you found, what were the possible sources of error
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