PHY 185 - Lab 8 - Simple Harmonic Motion

PHY 185 - Lab 8 - Simple Harmonic Motion - LAB 8 Simple...

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LAB 8 PURPOSE The purpose of this lab is to better understand Hooke’s Law and simple harmonic motion. Simple harmonic motion is a periodic oscillation which in this case is the oscillation of a weighted spring that is slightly stretched then released. Hooke’s Law of elasticity simply states that the extension produced by a spring is directly proportional to the load given to that spring; it can be illustrated in the equation: F spring = - k Δ x , where F spring is the amount of force of the spring, k is Hooke’s constant, and Δ x is the change in length of the spring ( x stretched x initial ). The period of oscillation of the spring can be illustrated in the equation: T = 2 π [√ ( m ÷ k )] MATERIALS U 2 springs U Yard stick U Weights U Stop watch PROCEDURE Part 1: Finding Hooke’s Constant To determine Hooke’s constant, k , for the two springs a few grams of weight was added to begin with and the length of the spring was measured. This measurement was used as the initial displacement, x 0 , because this increases accuracy. Then, additional weight was added to the spring and the length of the spring was measured. This process was repeated an additional four times, each time recording the length of the spring as well as documenting the amount of
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This note was uploaded on 05/04/2008 for the course PHY 185 taught by Professor Malik during the Fall '07 term at Rhode Island.

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PHY 185 - Lab 8 - Simple Harmonic Motion - LAB 8 Simple...

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