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Sound Vocabulary

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 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) The loudness of different sounds is compared using this unit
Pitch 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 normal human range of hearing
Larnyx Two folds of tissue that make up the human voice box
Doppler Effect The change in frquency of a wave as its source moves in relation to an observer
Causes of the Doppler Effect When a source moves, the frequency of the waves changes 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 causing a loud noise
Fundamental Tone The lowest natural frequency of an object
Overtone An object's higher natural frequencies
Acoustics The study of how sounds interact with each other and the environment
Reverbration The echoes of a sound that are heard after a sound source stops producing sound waves
Ear Canal A narrow region leading from the outside of the human ear to the eardrum
Ear Drum A small, tightly stretched, drumlike membrane in the ear
Cochlea A fluid-filled cavity shaped like a snail shell
Echolocation The use of reflected sound waves to determine the distances or to locate objects
Sonar A system that uses reflected sound waves to detect and locate objects underwater
Sonogram The device uses the reflected ultrasound waves to create a picture. This picture is a _______.
Created by: jennac1401