Physics 2048 Lab Report
Lab 10: Harmonic Motion (Part I)
Date Due: November 18, 2010
Abstract:
The purpose of this experiment was to first determine the spring constant,
k
, of the spring, which is
measured by applying Hooke’s Law. In order to verify Hooke’s Law, we used a mass of .030 kilograms to add
force to the spring, and by measuring the spring displacement while applying those forces, we could determine
the value of
k
.
The basic equation that we used to determine the spring constant was kx= mg, where k is the
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View Full Documentspring constant, x is its displacement due to the mass, m is the mass applied and g is the acceleration of the
force of gravity. We also were able to calculate the spring constant a second way by using the equation
ϖ
=(
√
k/
m). The latter part of the experiment was to determine the effect that mass had on the spring. One value was
calculated from using the spring constant and the other value was measured by using the times that was found
for the spring to do 60 oscillations. The period of the motion in seconds can be expressed as T= (2π(
√
m/k).
Some results of this experiment were that T increased as mass increased. Masses 0.010, 0.020 and 0.030 had
T’s of .2742, .3873, .4750 seconds respectively which helped us to conclude that all the data collected in the
experiment, obeyed Hooke’s Law.
Introduction:
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 Spring '11
 JohnSmith
 Physics, Mass, Simple Harmonic Motion, Mass Bar

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