1. Masses Go To and Fro Oscillating Systems

2. Periodic Motion OSCILLATION – a periodic variation from one state to another SIMPLE HARMONIC OSCILLATOR– an object that repeats a periodic motion

3. Simple Harmonic Motion PERIOD – the time in which a complete oscillation occurs (seconds) FREQUENCY – the number of oscillations that a system completes in one second (Hertz)

4. Pendulum What are the controllable factors in creating a pendulum? –LENGTH –MASS –RELEASE ANGLE Period of a pendulum is the time for one complete swing. How do the controllable factors change the period? –Determine in Lab length θ release angle A mass

5. Mass on a Spring What are the controllable factors in creating a mass/spring system? –SPRING CONSTANT –MASS –RELEASE POSITION Period of a mass on a spring is the time for one complete oscillation. How do the controllable factors change the period? –Inversely proportional to SPRING CONSTANT –Proportional to MASS

6. Results Period of Pendulum Period of Mass on Spring