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Vibratory_Motion_Of_A_Spring
2013-11-13 来源: 类别: 更多范文
Vibratory Motion Of A Spring
Lab: Vibratory Motion of a spring
Purpose: To verify the laws of simple harmonic motion for the spring.
Materials: Spring, mass holder with pointer, scale, slotted masses, timer
Procedure:
1. Determine the force constant of the spring by adding masses to the spring, one at a time. There should be at least six mass increments. Unload the spring, one mass at a time, and note the elongation. Plot a graph of force vs. elongation and take the slope of the line.
2. Determine the time for one complete vertical oscillation (period). To do this, attach the first known mass and pull the spring slightly from down its equilibrium position and release it. The system is now oscillating. Record the time for 50 complete oscillations and then determine the period. Repeat with the same mass increments you used in procedure 1.
3. Theory suggests the period, T, is related to the spring constant, k, by equation (5). Plot a graph of T vs. mass effective. Determine the value of k from the graph and compare it to the value of k that you determined in procedure 1.
Hypothesis: I believe that the
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