PHYS 117
Midwestern University
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W2-3-notes
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Sound and sound waves
sound waves are longitudinal waves (also called compression or pressure waves)
get vibrations from source of sound (eg. loudspeaker, vocal chords)
individual molecules vibrate back and forth (horizontal motion) about (fixed) equilibrium position
get a travelling wave moving through gas, liquid, or solid (needs a “medium”)
frequency
of the wave is determined by the source
PHYS117
the wavelength
spe...
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Sound and sound waves sound waves are longitudinal waves (also called compression or pressure waves) get vibrations from source of sound (eg. loudspeaker, vocal chords) individual molecules vibrate back and forth (horizontal motion) about (fixed) equilibrium position get a travelling wave moving through gas, liquid, or solid (needs a “medium”) frequency of the wave is determined by the source PHYS117 the wavelength spe...
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