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2.01 Waves
intro vocab for waves
18
Physics
9th Grade
07/10/2019

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Term
wave
Definition
Continuous and repetitive transmission of energy from one location to another
Term
medium
Definition
Matter through which a wave can move
Term
propagate
Definition
To move

To travel
Term
wavelength
Definition
The distance between 2 crest of the same wave

Also the distance between 2 troughs of the same wave
Term
frequency
Definition
How many times a complete wave passes a certain point in a certain period of time
Term
equilibrium
Definition
Rest state of a wave
Term
amplitude
Definition
Height of a wave

Measured from equilibrium to the crest
Term
directly proportional
Definition
Relationship where one amount increases, the other amount also increases

If one amount decreases, the other amount decreases
Term
inversely proportional
Definition
Also called indirectly proportional

Relationship where one amount increases, the other amount decreases

If one amount decreases, the other amount increases
Term
constant
Definition
Does not change

Stays the same
Term
longitudinal wave
Definition
Wave in which the particles of matter move in a direction PARALLEL to the motion of the wave
Term
rarefaction
Definition
Spread out region of a LONGITUDINAL wave
Term
compression
Definition
Bunched up section of a LONGITUDINAL wave
Term
transverse
Definition
Wave in which the particles of matter move in a direction PERPENDICULAR to the motion of the wave
Term
crest
Definition
Top point of a TRANSVERSE wave
Term
trough
Definition
Bottom point of a TRANSVERSE wave
Term
perpendicular
Definition
At a 90 degree angle
Term
parallel
Definition
Side by side, never intersecting
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