PHYSICSTime Period of a Simple PendulumLink for online lab:https://phet.colorado.edu/en/simulation/pendulum-lab
PROCEDURE:Click on the Intro window.Click on Stopwatch. Make sure that speed is set to Normal (radio button) and Friction (slider) is set to None.Throughout the experiment, do not increase the Amplitude beyond 30 degrees.Choose Earth in Gravity window for Parts 1, 2 and 3.Part 1 – Time Period vs. Mass – Length, Gravity & Amplitude constant1. Choose constant values for length, gravity and amplitude. Choose mass of the pendulum to be 0.1 kg and measure time for 10 oscillations.2. Keep length, gravity and amplitude same. Change mass to 0.4 kg and again measure time for 10 oscillations. Repeat this for a total of 6 readings.Part 2 – Time Period vs. Amplitude – Length, Gravity & Mass constant3. Choose constant values for length, gravity and mass. Choose amplitude of the pendulum to be 5 degrees and measure time for 10 oscillations.4. Keep length, gravity and mass same. Change amplitude to 10 degrees and again measure time for 10 oscillations. Repeat this for a total of 6 readings.Part 3 – Time Period vs. Gravity – Amplitude, Length & Mass constant5. Choose constant values for amplitude, length and mass. Choose Moon from the Gravity drop down menu and measure time for 10 oscillations.6. Keep amplitude, length and mass same. Change gravity location to Earth and again measure time for 10 oscillations. Repeat this for a total of 3 readings.Part 4 – Time Period vs. Length – Amplitude, Gravity & Mass constant7. Choose constant values for amplitude, gravity and mass. Choose length of the pendulum to be 0.2 m and measure time for 10 oscillations.8. Keep amplitude, gravity and mass same. Change length to 0.4 m and again measure time for 10 oscillations. Repeat this for a total of 6 readings.(Length values in m: 0.2, 0.4, 0.6, 0.8, 0.9, 1.0)GRAPHS:Plot the following graphs and paste here. All graphs must have a title and axes labeled with quantities plotted (& units).a) From Part 1: Period vs. Mass (T vs. M)b) From Part 2: Period vs. Amplitude (T vs. A)c) From Part 3: Period vs. Gravity (T vs. g)d) From Part 4: Period vs. Length (T vs. L)e) From Part 4: Period2 vs. Length (T2 vs. L)ANALYSIS:Based on graphs, answer the following questions:1. From Period vs. Mass graph, does the period appear to depend on mass?2. From Period vs. Amplitude graph, does the period appear to depend on amplitude?3. From Period vs. Gravity graph, does the period appear to depend on gravity? Whatis the relation between Period and Gravity ?4. From Period vs. Length graph, does the period appear to depend on length? Whatis the relation between Period and Length (directly related or inversely related)?5. Explain how you can graphically determine g of Earth using Period2 vs. Lengthgraph? Obtain the value of g by doing a curve fitting and compare it with theknown value of 9.81 m/s2.(Hint: )6. Explain how you can graphically determine length of a pendulum using Period2 vs.1/ g graph?DATA TABLE:Part # Run # Length (m)Mass(kg)g(m/s2) Amplitude(degrees) Time for 10 oscillations(s) Time Period(s)1 1234562 1234563 1234 1234567
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