Science 9

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8 Terms

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Mechanical wave

A disturbance in matter that transfers energy through the matter

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Transverse wave

A wave in which the medium vibrates at right angles to the direction the wave travels

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Longitudinal wave

A wave in which the vibration of the medium is parallel to the direction the wave travels

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Surface wave

A wave that travels along the surface of a medium

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Supersonic speed

Any speed that is faster than the speed of sound in the medium of interest

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Pitch

An indication of how high or low a sound is which primarily determined by the frequency of the sound waves

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If a wavelength doubles the frequency is

Halved

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Doppler affect

A change in sound frequency caused by the motion of the sound source, motion of the listener, or both