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Sound Glossary

A

amplitude
the pressure put out by sound or also known as volume

C

cochlea
A liquid filled part of the ear which helps with hearing and balance
crest
The highest part of a wave

D

decibels
The unit of measuring the loudness of a sound
device
Tool or equipment
Doppler
A scientist who discovered why the pitch changes as a sound passes an observer

E

echo
The reflection of sound off of a solid such as a canyon wall
echolocation
The use of echoes to navigate
electrocardiogram
The use of sound waves to get readings about the health of a heart
energy
Activity or power
extracorporeal shock waves
The use of sound waves to shatter kidney stones inside the kidney

F

frequency
The distance between two sound waves also known as pitch

H

humidity
Amount of water vapor in the air

M

matter
Anything that has mass and takes up space
molecules
smallest form of matter consisting of one or more atoms

N

navigate
To move around

P

pitch
The high or low of a sound
properties
The qualities of matter - size, color, temperature, etc.

S

sonar
The use of sound waves to identify underground or underwater objects

T

trough
The lowest part of a wave

U

ultrasonic cleaners
The use of inaudible sound waves to break up plaque on the teeth
ultrasound
That part of sound in which the frequency is too high for the human ear

V

vacuum
An space filled with nothing, not even air
vibrates
To move rhythmically in a pattern

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