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17.4 Chemistry

Vocabulary Words

QuestionAnswer
sound waves a longitudinal wave consisting of compressions and rarefactions, which travels through a medium
intensity the rate at which a wave's energy flows through a given unit of area
decibel a unit that compares the intensities of different sounds
loudness a physical response to the intensity of sound, modified by physical factors
pitch the frequency of a sound as a listener perceives it
sonar a technique for determining the distance to an object under water
Doppler effect a change in sound frequency caused by motion of the sound source, motion of the listener, or both
resonance the response of a standing wave to another wave of the same frequency, with dramatic increase in amplitude of the standing wave
Created by: MarieElyn