vibrationlab

# vibrationlab - Steve Xu Period 1 Ms Ghosh Vibratory motion...

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Steve Xu Period 1 Ms. Ghosh Vibratory motion of a spring Lab Objective: To explore and prove Hooke's law by calculating spring constant k for the given spring. Also to compare the value of k by the simple harmonic equation t= 2pi sqr root (m/k). Materials: Hooke's law apparatus, four 20 gram weights, a pan, spring, and timer. Procedures: Part 1 : determine the force constant of the spring by adding masses to the spring, one at a time. By unloading the spring, one mass at a time, we can measure the elongation and record. Repeat same process for unloading. Part 2 : determine the time for one complete vertical oscillation. Record the time for 50 complete oscillations and then determine the period. Repeat with the same mass increments we used in procedure 1. Calculate K and compare. Results: Attached with the Graphs Questions : 1. Does the plot of force versus elongation indicate that the spring obeys Hooke’s Law? Why or why not?

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