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Ch. 16 Sound

The nature of sound; Properties of sound; Music; How you hear sound;Using sound

TermDefinition
Echo A reflected sound wave
Elasticity The ability of a material to bounce back after being disturbed
Density The ratio of mass of the substance to its volume
Loudness Perception of the energy of the sun
Intensity The amount of energy per second carried through a unit area by a wave
Decibel (dB) A unit used to compare the loudness of different sounds
Pitch Perception of the frequency of a sound
Ultrasound Sound waves with frequencies about 20,000 Hz
Infrasound Sound waves with frequencies below 20 Hz
Larynx Two folds of tissue that make up the human voice box
Doppler Effect The change in frequency of a wave as its source moves in relation to an observer
Created by: lh1008staloysius
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