AP Physics Chapter 15 Study Guide
Traveling Waves and Sound

The Wave Model

Mechanical Waves - A mechanical wave is a disturbance that travels through some material or substance called the medium for the wave.

Note: The medium as a whole does not travel with the wave.

Note: A wave transfers energy, but it does not transfer any material or substance outward from the source.

waves

 

Electromagnetic and Matter Waves

Electromagnetic Waves - Electromagnetic radiation (sometimes abbreviated EMR) takes the form of self-propagating waves in a vacuum or in matter. EM radiation has an electric and magnetic field component which oscillate in phase perpendicular to each other and to the direction of energy propagation.

 

Matter Waves - In quantum mechanics, the matter wave, or de Broglie wave, is the wave of matter.

 

Transverse and Longitudinal Waves

Transverse Waves - A transverse wave is a moving wave that consists of oscillations occurring perpendicular to the direction of energy transfer.

transverse wave

Transverse Plane Wave

transverse wave

Transverse Circular Wave

 

transverse

 

Longitudinal Waves - Longitudinal waves are waves that have vibrations along or parallel to their direction of travel; that is, waves in which the motion of the medium is in the same direction as the motion of the wave.

longitudinal

Longitudinal Plane Wave

longitudinal

Longitudinal Circular Wave

longitudinal

 

 

Traveling Waves

Waves on a String

waves

 

Sound Waves

sound waves

 

Wave Speed in a Spring

wave speed

 

Speed of Sound in a Gas

speed of sound

 

table

 

Description of Waves

waves

 

Wave Speed

speed

 

Sound and Light Waves

sound

 

Light and Other Electromagnetic Waves

electromagnetic

 

Intensity of a spherical wave

intensity

 

Loudness of Sound

Decibel Scale

decibels

 

decibels

 

decibels

 

The Doppler Effect and Shock Waves

doppler effect

 

Doppler Effect Equations

doppler effectdoppler effect

 

Shock Waves

shock waves

 

sonic boom

 

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