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17 Cards in this Set
- Front
- Back
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Doppler effect
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the change in frequency (and pitch) as a source of sound moves toward or away from you
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echolation
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the finding of an object by using reflected sound
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echo
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a reflected sound wave
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quality
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the difference you hear in two sounds of the same loudness and pitch
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sound wave
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a vibration that spreads away from a vibrating object
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matter
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anything that has mass and takes up space
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vibration
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a back-and-forth movement
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compression
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the part of a sound wave where molecules are crowded together
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rarefaction
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the part of a sound wave where molecules are spread apart
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overtone
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one of a series of pitches that blend to give a sound its quality
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pitch
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how high or low a sound is
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fundamental frequency
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the lowest frequency at which an object vibrates
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frequency
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the number of times an object vibrates per second
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hertz
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a unit for measuring frequency
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absorption
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the disappearance of a sound wave into a surface
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decibel
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a unit for measuring loudness
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reflection
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the bouncing of a sound wave off a surface
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