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Sound Vocabulary

Defining words

TermDefinition
Echo A reflected sound wave
Elasticity The ability of a material to bounce back after being disturbed.
Density How much matter, or mass, there is in a given amount of space, or volume.
Loudness Describes your perception of the energy of a sound.
Intensity The amount of energy a sound wave carries per second through a unit area.
Decibel (db) A unit used to compare the loudness of different sounds.
Pitch A description of how high or low the sound seems to a person.
Ultrasound Sound waves with frequencies above the normal human range of hearing.
Infrasound Sounds with frequencies below the human range of hearing.
Larnyx The voice box that your vocal cords are located in.
Doppler Effect The change in frequency of a wave as its source moves in relation to an observer.
Causes of the Doppler Effect When a sound source moves, the frequency of the waves change because the motion of the source adds to the motion of the waves.
Causes of a Sonic Boom A shock wave releases a huge amount of energy.
Fundamental Tone The lowest natural frequency of an object.
Overtone The object's higher natural frequencies.
Acousticts The study of how sounds interact with each other and the environment.
Reverberation The echos of a sound are heard after the sound source stops producing sound waves.
Ear Canal A narrow region leading from the outside of the human ear to the ear drum.
Ear Drum A small, tightly stretched, drum-like membrane.
Cochlea A fluid-filled cavity shaped like a snail shell.
Echolocation The use of reflected sound waves to determine distances or to locate objects.
Sonar A system that uses reflected sound waves to detect and locate objects underwater.
Sonogram An image formed using reflected ultrasound waves.
Created by: Franmosley