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PS Ch. 14 Vocab.

QuestionAnswer
wave a periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium
medium a physical environment in which phenomena occur
mechanical wave a wave that requires a medium through which to travel
electromagnetic wave a wave that consists of oscillating electric and magnetic fields, which radiate outward at speed of light
traverse wave a wave in which the particles of the medium move perpendicular to the direction the wave is traveling
longitudinal wave a wave in which the particles of the medium vibrate parallel to the direction of wave motion
standing wave a pattern of vibration that stimulates a wave that is standing still
crest the highest point of a wave
trough the lowest point of a wave
amplitude the maximum distance that the particles of a wave's medium vibrate from their rest position
wavelength the distance from any point on a wave to an identical point on the next wave
period the time that it takes a complete cycle or wave oscillation to occur
frequency the number of cycles or vibrations per unit of time
Dopper effect an observed change in the frequency of a wave when the source or observer is moving
reflection the bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through
diffraction a change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening
refraction the bending of a wavefront as the wavefront passes between 2 substances in which the speed or the wave differs
interface the combination of 2 or more waves of the same frequency that results in a single wave
constructive interface any interface in which waves combine so that the resulting wave is bigger than the original waves
destructive interface any interface in which waves combine so that the resulting wave is smaller than the largest of the original waves
Created by: destinypeppers13
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