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Glossary of Chap. 10 Vocab

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wave
disturbance that transmits energy
transverse wave
wave that causes the particles of the medium to vibrate perpendicularly to the direction the wave travels
constructive interference
any intreference in which waves combine so that the resulting wave is bigger than the original waves
reflection
bouncing back of a wave when the source or observer is moving
crest
highest point of a transverse wave
diffraction
bending of a wave as it passes an edge or an opening
trough
lowest point of a transverse wave

amplitude
greatest distance that particles in a medium move from their normal position when a wave passes
electromagnetic wave
a wave caused by a disturbance in electric and magnetic fields that does not require a medium
doppler effect
observed changed in the frequncy of a wave when the source or observer is moving
mechanical wave
wave that requires a medium through which to travel
wave speed
speed at which a wave passes through a medium
longitudinal wave
wave that causes the particles of the medium to vibrate parallel to the direction the wave travels
destructive interference
any interference in which waves combine so that the resulting wave is smaller than the largest of the original waves
medium
the matter through which a wave travels
interference
combination of two or more waves that exist in the same place at the same time
wavelength
distance between any two successive identical parts of a wave
frequency
number of vibrations that occur n a 1 second time interval
period
full time required for one full wavelength to pass a certain point
refraction
bending of waves as they pass from one medium to another
standing wave
a wave caused by interference that appears not to move along the medium and that shows some regions of maximum vibration (antinodes)

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