1. Period of Simple Harmonic Motion

2. Time Period of Springs
An object that vibrates with simple harmonic motion is called a simple harmonic oscillator. The period of a simple harmonic oscillator depends on:
The stiffness if the spring (k)
Mass that is oscillating

3. Frequency and Time Period
The frequency of SHM is the inverse of the period

4. Sample Problem
A 0.23 kg object vibrates at the end of a horizontal spring (k = 32N/m) along a frictionless surface. What is the period of the vibration?

5. Sample Problem
A 2.7 N object vibrates at the end of a vertical spring. If the frequency of the vibration is 1.1Hz, what is the spring constant?

6. Calculating the Time Period of a Pendulum
The period of vibration for a pendulum depends on:
Length of the pendulum (l)
Gravitational field strength (g)

7. Sample Problem
Find the length of a pendulum that has a period of 0.90s

8. Homework
p. 156 #1 – 8
p. 158 #1 – 9