Chapter 11

# Simple Harmonic Motion

In This Chapter

Using Hooke's law

Following simple harmonic motion

Calculating simple harmonic motion velocity

Finding simple harmonic motion acceleration

Calculating a spring's period of oscillation

Simple harmonic motion — the motion of springs — is a very important topic in physics. This kind of motion is all based on Hooke's law, which says that the force on a spring in simple harmonic motion is proportional to the distance the object is away from its equilibrium position (the location where the oscillator will feel no unbalanced force). In other words, the farther a spring is stretched, the more it pulls back.

## Hooking into Hooke's Law

Hooke's law is represented by this equation:

F = –kΔ x

This deceptively simple equation is at the heart of explaining the motion of objects on springs. It says that the force on an object in simple harmonic motion ...

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