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CRPhysicsCh12Vocab

CRPhysicsChapter12Vocabulary2016

QuestionAnswer
the region of a longitudinal wave in which the density and pressure at a maximum compression
the region of a longitudinal wave in which the density and pressure are at a minimum rarefaction
a measure of how high or low a sound is perceived to be, depending on the frequency of the sound wave pitch
an observed change in frequency when there is relative notion between the source of waves and an observer Doppler Effect
the rate at which energy flows through a unit area perpendicular to the direction of wave motion intensity
a dimensionless unit that describes the ratio of two intensities of sound; the threshold of hearing is commonly used as the reference decibel
a phenomenon that occurs when the frequency of a force applied to a system matches the natural frequency of vibration of the system, resulting in a large amplitude of vibration resonance
the lowest frequency of vibration of a standing wave fundamental frequency
a series of frequencies that includes the fundamental frequency and integral multiples of the fundamental frequency harmonic series
the musical quality of a tone resulting from the combination of harmonics present at different intensities timbre
the periodic variation in the amplitude of a wave that is the superposition of two waves of slightly different frequencies beat
Created by: CRMissK
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