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# science ch. 15 w.

### science chapter 15 on waves

wave is a destebaence that transfers energy from place to place
energy as the ability to do work
medium material at which a wave travels
mechanical wave waves that require medium through which to travel
vibration is repeated back-and-fourth or up-and-down
transverse wave waves that move the medium at right angles to the direction in which the wave travels
longitudinal wave move the medium parallel to the direction in which the waves traveles
compression a part where all the coils are close together
rarefaction these parts were all the coils are spread out
trough lowest part of a transverse wave
crest highest part of a transverse wave
wavelength the distance between two corresponding parts of a wave
amplitude the maximum distance that the particles of the medium carrying the wave
frequency the number of waves that passes a certain spot in a certan amount of time
hertrz frequency is measured in units called ........
speed of wave speed= wavelength+ frequency
reflection this interaction with a surface (seeing yourself in water)
refraction the bending of waves due to a change in speed
diffraction when two waves going in two different directions meet
constructive interference the interference that occurs when waves combine to make a wave with a larger amplitude
destructive interference an interference that occurs when waves combine and get smaller
resonance is an increase in the amplitude of a vibration
standing wave is a wave that appears to stand taller or in one place, but its the opposite
Created by: manu1