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P: Ch.11 Waves
P: Ch.11 Waves
13
Science
8th Grade
05/15/2011

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Term
waves
Definition
Rhythmic disturbances that carry energy without carrying matter
Term
Mechanical Waves
Definition
Type of wave that Uses matter to transfer energy
Term
Transverse
Definition
Mechanical Waves
Term
Compression Wave
Definition
matter in the medium moves forward and backward in same direction as the wave
Term
Compression
Definition
where the molecules in a wave squeeze together
Term
Rarefaction
Definition
where the molecules in a wave are spread apart
Term
Amplitude
Definition
½ the distance between the crest & the trough
Term
Wavelength
Definition
Distance from the top of one crest to the top of the next crest
Term
Wave speed
Definition
How fast a wave travels through a medium
Term
reflection
Definition
when a wave strikes an object or surface and bounces off
Term
Refractions
Definition
when a wave bends and changes speed as it moves from one medium to another.
Term
Diffraction
Definition
the bending of waves around a barrier
Term
Interference
Definition
two or more waves combine and form a new wave
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