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PLAY THE JAMES GAME
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A
B
PITCH
A SOUND THAT DEPENDS ON HOW FAST PARTICLES OF A MEDIUM VIBRATE.
ULTRASONIC
A SOUND ABOVE THE RANGE OF HUMAN HEARING (20,000hz).
INFRASONIC
SOUND BELOW THE RANGE OF HUMAN HEARING (20hz)
DOPPLER-EFFECT
CHANGE IN SOUND OR LIGHT THAT OCCURS WHENEVER THERE IS MOTION BETWEEN THE SOURCE AND ITS OBSERVER.
INTENSITY
AMOUNT OF ENERGY CARRIED BY A WAVE.
Julie Palin
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