2. Definition: Any motion where the restoring force is directly proportional to the distance away from the equilibrium position. (Typically a pendulum or a mass on a spring)

5. Acceleration is greatest when the object is furthest from its equilibrium position – Why does this make sense?

6. A definition: Any motion that repeats itself over and over again
Periodic Motion
A definition: Any motion that repeats itself over and over again

7. A Pendulum exhibits simple harmonic motion and periodic motion

8. Why is simple harmonic motion which is clearly linear in the case of a mass on a spring described with rotational motion formulas?

9. The formulas for Simple Harmonic Motion:

11. Formulas

12. A pendulum makes 30 complete oscillations in 20 seconds:
what is the period of 1 oscillation?
What is the frequency of the pendulum?
What are the units of frequency?