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Waves

TermDefinition
Wave a repeating disturbance that carries energy from one place to another.
Medium the material a wave travels through (solid, liquid, or gas).
Crest the highest point of a wave.
Trough the lowest point of a wave.
Frequency how many waves pass a point in a certain amount of time.
Wavelength the distance from one crest to the next.
Amplitude the height of a wave from rest to crest (energy level).
Transverse wave particles move up and down, perpendicular, to the forward movement of the wave,
Longitudinal wave particles move back and forth, parallel, in the same direction as the wave.
Compression/Rarefaction the two parts of a longitudinal wave where particles are pushed close together, and spread far apart
Electromagnetic spectrum the full range of electromagnetic waves, from radio waves to gamma rays.
Visible light the part of the EM spectrum that human eyes can detect as colors
Reflection when a wave bounces off a surface.
Refraction when a wave bends as it passes into a new medium.
Ultraviolet (UV) waves just beyond violet light; can cause sunburn.
Gamma rays the highest-energy EM waves; can kill cancer cells.
Infrared invisible waves felt as heat.
Microwaves waves used to heat food and send signals (cell phones).
X-rays high-energy waves that pass through soft tissue but not bone.
Fiber optics thin glass strands that carry light waves for internet/TV.
Created by: martinezrg25
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