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Science Flashcards B

Mrs. Elliott's Science Flashcards WAVES!

Wave rhythmic disturbance that carries energy but not matter
Mechanical Wave a type of wave that can travel only through matter
Transverse Wave a type of mechanical wave in which the wave energy causes matter in the medium to move up and down or back and forth at right angles to the direction the wave travels
Longitudinal (compressional) Wave type of mechanical wave in which matter in the medium moves forward and backward in the same direction that the wave travels
Electromagnetic Wave transverse waves that can travel through matter or space and are produced by the motion of electrically charged particles; include X rays, ultraviolet waves, and visible light
Medium the object on which the energy of the wave os exerted
Rest Position where the medium is at rest
Crest high point in a wave
Trough low point in a wave
Amplitude distance a wave rises above or falls below its normal level, which is related to the energy that the wave carries; in a transverse wave, this amount is one-half the distance between a crest and a trough
Wavelength in transverse waves, the distance between the tops of two adjacent crests or the bottoms of two adjacent troughs; in compressional waves, the distance from the centers of adjacent rarefactions
Frequency number of wavelengths that pass a given point in 1 s, measured in hertz (Hz)
Reflection ccurs when a wave strikes an object or surface and bounces off
Refraction bending of a wave as it moves from one medium into another medium
Diffraction bending of waves around a barrier
Interference ability of two or more waves to combine and form a new wave when they overlap
Constructive Interference the waves meet, the crest of one wave overlaps the crest of another wave
Destructive Interference occurs when the crest of one wave overlaps the trough of another wave
Created by: 100000192585742