Oscillations and Waves Section 3
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5 Terms
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Sound is...
a longitudinal wave
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Compression
when a vibrating object pushes on the air compressing it
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Rarefaction
When air moved back into caused by a compression
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doppler effect
change in the apparent frequency of a wave as observer and source move toward or away from each other
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Forced vibrations
when an object at rest is forced into a vibration
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