Wave - a repeating disturbance that carries energy from one point to another, Medium - a uniform substance through which energy travels, Frequency - the number of disturbances that pass a point in a given amount of time, Wavelength - distance from crest to crest of a wave, Amplitude - distance between the highest point of a wave and the flat, bottom level, Transverse Wave - wave that travels in a right angle to the direction of the wave, Longitudinal Wave - wave that travels along the same direction that the wave travels, Reflection - the action of light bouncing off the surface of a medium, Refraction - Thea action of light bending as it passes from one medium to another, Electromagnetic Spectrum - the complete range of electromagnetic waves places in order of increasing frequency,

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