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Sound
Definitions
8
Science
4th Grade
03/04/2013

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Cards

Term
Sound
Definition
Vibrations you can hear
Term
Sound waves
Definition
A moving pattern of high and low pressure that you can hear
Term
Compression
Definition
The area where air is pushed together
Term
Amplitude
Definition
The greatest area a wave rises from its rest or calm
Term
Wave length
Definition
The distance in a straight line from one place on a ripple to the same place on the next ripple
Term
Pitch
Definition
A measure of how high or low the sound is.
Term
Loudness
Definition
A measure of the amount of sound energy reaching your ears
Term
Depends on how fast the source is vibrating.
Cn be changed by changing the length and thickness of the material.
Definition
Depends on how far you are from the source and the amplitude.
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