# act11ans - Do NOT write on these sheets or take them with...

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Unformatted text preview: Do NOT write on these sheets or take them with you! The next class needs them too! PHYS-1200 PHYSICS II SPRING 2006 Class 11 Activity: Mechanical Oscillations WORKED OUT EXAMPLE The first question should take you no more than 5-10 minutes. 1. You are to set the mass/spring system available at your table into oscillatory motion by lifting the mass a short distance from equilibrium and releasing it. Then measure the period of oscillation, using only the clock on the wall or your watch. (Hint: It is easier, and more accurate, to measure the time taken for five or ten oscillations, and then divide the result by the number of oscillations.) a) Find the period for an amplitude of about 2 or 3 cm (about 1 inch). Using my watch, 10 periods took 11.6 s, so the period should be T = 1.16 s. Frequency, f = 1/T = 1/1.16 s = 0.862 Hz. b) Find the period for an amplitude of about 10 or 12 cm (about 4 inches). The result was the same, 11.6 s for ten periods, to give a period of T = 1.16 s. Frequency, f = 1/T = 1/1.16 s = 0.862 Hz c) Does amplitude appear to influence the period of oscillation? No. Depending on which version of “LoggerPro” you are using, download the file “oscillations for 2.2” or “oscillations for 3.2” from the Activities page, using Internet Explorer (Netscape does not always download LoggerPro files appropriately) by right-clicking and choosing “Save As”....
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act11ans - Do NOT write on these sheets or take them with...

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