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25 Cards in this Set

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  • Back
wave
any disturbance that transmits energy
medium
substance through a which a wave can travel
mechanical wave
waves requiring a medium
electromagnetic waves
waves that do not require a medium
examples of mechanical waves
seismic, ocean, sound
examples of electromagnetic waves
radio, light, x ray, tv, microwave
transverse wave
particles travel up and down, perpendicualar to the wave
logitudinal wave
particles vibrate back and forth along the path of the wave
crest
highest point of a transverse wave
trough
lowest point of a transverse wave
compression
part of a longitudinal wave where the particles are crowded
rarefaction
part of a longitudinal wave where the particles are less crowded
amplitude
maximum distance a wave travels from its rest point
wavelength
distance between two adjacent crests or troughs
frequency
number of waves produced in a given amount of time
Unit for frequency
hertz
wave speed
the distance a wave travels in a given amount of time
reflection
a wave bounces back after striking a barrier
refraction
the bending of a wave as it passes from one medium to another
diffraction
bending of waves around a barrier or through an opening
interference
two waves overlap
constructive interference
two crests overlap and the reulting crest is larger than the two
destructive interference
a crest and trough of two different waves overlap cancelling each other out or producing a smaller amplitude
standing wave
a stationary wave pattern due to interference
surface wave
combination of a transverse and longitudinal wave, particles move in circles