Section 2Measuring simple harmonic motion

Amplitude, Period and Frequency

Amplitude, Period and FrequencyPeriod and frequency measure time.

f = 1/TT = 1/ f

Amplitude measures displacement from equilibrium position.

The period of a simple pendulum depends on string length and free- fall acceleration.

Formula: Simple Pendulum

Where: T = period L = length of string g = free – fall acceleration ( 9.81

m/s2)

Guided PracticeOpen books to pg. 448Sample Problem 12B

Formula : Mass- Spring SystemPeriod of a mass-spring system depends on

mass and spring constant.

Where : T = Periodm = mass k = spring constant

Guided PracticeOpen Books to pg. 450Sample Problem 12C