The kinds of waves in which the wavefronts are parallel planes everywhere and normal to the direction of propagation

A powerful compression wave, usually produced by an explosion or by the motion of a supersonic body moving through a medium

Resonant frequencies that are integer multiples of the fundamental frequency.

The interval between two frequencies having a ratio of 2:1

In Physics, the study of sound

The unit for measuring sound intensity

The principle that multiple waves passing through a medium will be expressed as one wave that is the algebraic sum of all waves involved

All resonant frequencies higher than the fundamental

The state of two waves undergoing constructive interference

A behavior that repeats itself at regular intervals

The average rate of sound energy transmitted through a unit area normal to the direction of sound transmission

Interference in which multiple waves combine and have a greater amplitude

A wave that has a lack of vibration at certain points, between which areas of maximum vibration occur

Periodic fluctuations in amplitude that are head when sounds of close but different frequencies are heard together

The law that states that the force needed to stretch a spring is approximately proportional to how far the spring is stretched

The increase or decrease of the frequency of a sound heard by an observer due to relative motion between listener and sound source

Interference in which multiple waves combine and have a lesser amplitude.

An area of a wave that has essentially no amplitude

A device that increases the power of an acoustic signal

The name of the force that draws a stretched string back to its equilibrium position

The lowest resonant frequency of vibration for an object

An area of a wave that is located in the middle between two nodes

The amount of time it takes a sound to fade to inaudible

another name for the spring constant in Hooke's law