Term
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Definition
| determines a sound's pitch |
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Term
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Definition
| ocean waves are this because the water and the waves move at a right angle to each other |
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Term
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Definition
| in a longitudinal wave, the space where there are few particles of medium are called this |
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Term
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Definition
| sound is this type of wave because the medium moves back and forth in the same direction as the wave travels |
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Term
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Definition
| this of a transverse wave is the highest point, or point of maximum displacement, of the wave |
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Term
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Definition
| sound of an approaching train whistle increases in pitch because of the _____ |
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Term
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Definition
| sounds people cannot hear |
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Term
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Definition
| sound travels through this |
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Term
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Definition
| frequency of sound waves is measured in these units |
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Term
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Definition
| the space where air particles are pushed together |
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Term
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Definition
| is produced by a vibration object that causes the air molecules to vibrate |
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Term
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Definition
| the intensity or loudness of a sound is measured in ______ |
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Term
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Definition
| refers to the maximum distances medium molecules are displaced |
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Term
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Definition
| lowest displacement of a wave |
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Term
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Definition
| a rocket engine produces a high wave of high ____, which registers 200 on the decibel scale |
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Term
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Definition
| dogs can hear this type of sound in the 25,000-Hz range |
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Term
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Definition
| FM radio stations broadcast at frequencies in the mega-____ range |
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