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8th Grade Unit 3a


Acoustics The science of sound: Study of the interaction between sound waves and objects
Amplification Producing sounds that have more intensity than where they were originally produced
Compression Moving molecules closer together as in a gas being put into a canister.
Compression wave (longitudinal wave) A wave produced where molecules are pushed closer together and then rebound to their normal position
Crest The highest point of a transverse wave
Density The ratio of mass versus volume: D= m/V
Doppler Effect When sound waves of an object moving relative to the observer take on a different frequency than if the object were stationary.
Frequency The number of waves that pass a given point in a given amount of time.
Inner ear Inner most part of the ear that contains the cochlea and nerve endings
Intensity The loudness of sound
Created by: darrin_evans