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Dailey: Waves

Chap 10- Wave Properties & Wave Behaviors

TermDefinition
crest highest point on a transverse wave
trough lowest point on a transverse wave
transverse wave wave through which the matter and energy move at right angles
compressional wave wave through which the matter and energy move as parallel lines
medium the matter through which a mechanical wave travels through; gas, liquid, solid
compression the dense part of a compressional wave
rarefaction the least dense (stretched out) part of a compressional wave
wavelength the distance between one point on a wave and the nearest point just like it
frequency the number of wavelengths that pass a fixed point each second
Hertz (Hz) measurement unit for frequency
period the amount of time it takes a wavelength to pass a point
What is the relationship between wavelength and frequency? they are directly inverse (opposites) the shorter the wavlength, higher the frequency, vice-versa
wave velocity formula velocity = frequency x wavelength
m/s wave velocity unit
m wavelength measurement unit
amplitude the amount of energy carried by a wave (large amplitude=large amount of energy)
How to measure amplitude on transverse waves? from the crest to the resting point
Wave reflection waves bounce off a surface
Law of Reflection the angle of incidence = the angle of reflection
angle of incidence the angle of the wave that strikes a surface
angle of reflection the angle of the wave that reflects (bounces) off a surface
wave refraction bending of a wave caused by a change in speed due to medium change
Wave diffraction occurs when an object causes a wave to change direction and bend around it or squeeze through an opening
wave constructive interference waves ADD together-happens when crests of 2 or more transverse waves arrive at same place at same time
wave destructive interference waves SUBTRACT from one another as they overlap-happens when crest of 1 transverse meets the trough of a new wave
Do mechanical waves require a medium or not? YES
Name an example of transverse waves ocean waves
Name an example of compressional waves sound waves
Created by: b_fergie
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