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mechanical and electromagentic waves

transverse wave a wave vibrating at right angles to the direction of its forward movement; up and down
longitudinal wave a wave vibrating parallel to (or in the same direction as) the direction of its forward movement
mechanical wave needs a medium to travel
electromagnetic wave does not need a medium to travel; can travel in a vacuum
amplitude distance from the point of origin to the crest OR trough; determines the energy of the wave; associated with volume and brightness
wavelength distance from any point on a wave to the corresponding point on the next consecutive wave; crest to crest etc
frequency number of waves that pass a certain point in 1 second; associated with pitch or tone; also determines color
reflection bouncing back of waves upon reaching another surface
refraction apparent bending of a wave as it encounters a different medium resulting in a change of speed
absorption transfer of energy to the matter as the wave passes through it
transmission transfer of energy through a surface or obstacle
Created by: kcurtin