Chapter 2 SHS

Period

time to complete one cycle

Damping

amplitude decrease over time

Frequency of vibration

number of cycles completed in one second

Simple Harmonic Motion

move back and forth a fixed number of times per second

Elasticity

restoring forces that causes an elsatic medium to bounce back when stretched or displaced

Inertia

tendency for motion or lack of motion to continue

Hertz

frequency is measured in

Frequency = 1/period

formula for frequency

Acoustics

study of sound

Medium

An audible disturbance in a _________ caused by a vibrating source

Pure tone

simplest of all tones, 1 frequency

Complex

multiple frequencies

sine wave

a wave whose source vibrates with simple harmonic motion

Wavelength

how far apart the waves are is called

Longitudinal wave

Particles vibrate alternatively in the same or opposite direction of propagation

transverse wave

Particles vibrate at right angles to the direction of wave propagation.