rarefaction |
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| navigate by keyword : sound vibration wave compression rarefaction longitudinal acoustic air molecules wavelength direction propagation pressure waveform frequency amplitude energy oscillation resonance bell audio intensity speed pitch decibel doppler effect science mechanics signal physics teaching infographic stem education outline diagram |
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| Sound vibration concept, ringing bell, air molecules, and wave show compression, rarefaction, propagation, and wavelength. Outline diagram |
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