Stack #131184
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| Particle Theory | The theory that a light beam behaves the same way as a beam of particles
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| Wave theory | The theory that light behaves as a wave
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| Electromagnetic waves | A transverse wave composed of an oscillating electrical field and a magnetic field that oscillates perpendicular to the electrical field
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| Dual nature | The concept that light has wave and particle characteristics
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| Quantum-Mechanicle theory of light | A theory in which light is viewed as tiny packets of waves
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| Visible spectrum | The spectrum of light that we can see with our eyes
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| Electromagnetic spectrum | All light
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| Ultraviolet light, x-rays, gamma rays | Lightwaves with wavelengths smaller than visible light
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| Ultraviolet light | Has enough energy to kill living tissue on contact; Used for sterilizing
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| X-rays | More than enough energy to kill living tissue on contact
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| Infrared light | Light with wavelengths, just larger than visible light; ex. a space heater
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| Radiowaves | Light with wavelengths larger than infrared light; ex t.v. radio and microwaves
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| Reflection | when light or sound waves bounce off an obstacle
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| Angle of incidence | /the angle of a original light ray
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| Angle of reflection | Angle of the reflected light ray
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| The Law of Reflection | The angle of reflection equals the angle of incidence
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| Refraction | When light or sound waves begin to travel through an obstacle
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| Law of Refraction 1 | Whe light refracts into a substance, in which it must slow down, the light ray will bend, towards a line that it perpendicular to the surface that it strikes
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| Law of Refraction 2 | When light refracts into a substance in which it can speed up, the light ray will bend away from a line that is perpendicular to the surface that it strikes
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| Fiberoptic | A surface allows no refraction, only reflection
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| Converging lense | A lense that makes all horizantle light rays converge to a single point
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| Diverging lense | A lense that bends light rays outwards
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| Rods & Cones | Light sensetive cell in the retina of the eye
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| Addative Primary Colors | 3 colors that can create every color through combinations
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| Subtractive Primary Colors | Clors that form the addative primary colors through combinations
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