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Waves & Energy
Waves & Energy
21
Science
7th Grade
01/05/2012

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Term
Crest
Definition
highest point of the wave
Term
trough
Definition
lowest point of the wave
Term
medium
Definition
solid,liquuid, and gas
Term
rest
Definition
a point of the wave that is still and doesn't move up and down
Term
parallel
Definition
two lines that will not touch each other ever (like railroads)
Term
perpandicular
Definition
lines that intersect that form a 90 degree angle
Term
wavelength
Definition
the wavelength of the wave is is the distace beetween two successive crests (or two successesive troughs)
Term
amplitude
Definition
the aplitude of the wave is the maximum height of the crest (or the trough)
Term
mechanical wave
Definition
a mechanical wave needs a medium (solid, liquud, or gas)
Term
waves
Definition
a body of water that is moving up and down looking as if the wave is moving toward the beach
Term
energy
Definition
energy alows the wave to move up and down
Term
energy transfer
Definition
this is when particals move from one to another and then the water moves up and down
Term
vibration
Definition
a distubance that make the wave start to move
Term
longitudinal wave
Definition
A wave is a disturbance of a medium which transports energy through the medium without permanently transporting matter
Term
matter
Definition
matter is anything that takes up space
Term
siesmic waves
Definition
Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion
Term
siesmic waves
Definition
Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion
Term
transverse wave
Definition
waves pile up and down
Term
frequency
Definition
number of waves that pass a fixed point per unit time
Term
rarefraction
Definition
the act or process of making less dense or the state of being less dense
Term
compression
Definition
a shock wave that compresses the medium through which it is transmitted.
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