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Sound

4th Grade Sound Vocabulary

TermDefinition
sound (noun) a form of energy that travels as waves through matter
amplitude (noun) the distance between the resting point and a crest or trough of a wave.
frequency (noun) the number of waves that pass a point in a certain amount of time
vibrate (verb) to move back and forth quickly
wave (noun) a change that carries energy from one place to another
wavelength (noun) the distance between one crest or trough and the next one in a wave
pitch (noun) how high or low a sound is
medium (noun) the matter through which a sound wave travels
volume (noun) how loud or soft a sound is
outer ear (noun) part of the ear that you can see; gathers sound waves from the air and funnels them toward the eardrum
inner ear (noun) has coiled tubes filled with fluid; vibrations from the middle ear make the fluid vibrate causing nerve cells to send signals to the brain
eardrum (noun) a thin flap of skin that vibrates when sound waves strike it; passes the vibrations to the middle ear
middle ear (noun) three tiny bones of the middle ear pick up vibrations from the eardrum; pass vibrations to the inner ear.
acoustics (noun) the properties or qualities of a room or building that determine how sound is transmitted in it.
Created by: ProfJenkins
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