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Chapter 15: sound

Physics sound vocab

QuestionAnswer
Harmonics integers of the fundumental frequency
decibel unti of measurement for sound level (dB)
Sound wave a pressure variation transmitted through matter as a longitudal wave
doppler effect change in frequency caused by a moving source or moving detector
loudness factor percieved by the ear that depends primarily on the amp. of the wave the observer hears
pitch depends on the frequency of a sound wave
dissonance an unpleasant combination of pitches
beat oscillation of wave amp. heard when 2 frequencies are nearly identical
consonance a pleasant combination of pitches
fundumental the lowest resonance frequency
close- pipe resonator resonating tube with one end closed to air
open -pipe resonator resonating tube with both end open
sound level logarithmic scale that measures the amp. of sounds that humans can hear
Created by: Em143