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PHY 185 - Lab 8 - Simple Harmonic Motion

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

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LAB 8 Simple Harmonic Motion & Hooke’s Law 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.

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

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