Electro-magnetic spectrum

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Incandescence

Process of producing light as a result of high temperature

Electric discharge

Produced by electric current passing thru a gas, causes gas to glow

Phosphorescence

Absorbs UV light and then emits visible light over time

Flourescence

Material absorbs UV light & immediately emits visible light

Chemiluminescence

Production of light as the result of a chemical reaction w little to no heat produced

Bioluminescence

Production of light in a living organism, result of a chemical reaction w little to no heat produced

Light emitting diode (LED)

Produces light when electric current flows thru it

Produces less heat

Doesnt require filament

Incandescent light bulb

Produces more heat, can get v hot

Uses more energy, most energy turned into heat

Uses thin wire of filament

what is light

Electromagnetic wave

Doesnt need medium

Transferred through radiation

Medium

any physical substance that can transfer energy

Radiation

Method of energy transfer, doesnt need medium to transfer energy, energy that travels at the speed of light

Electromagnetic wave

Wave that has both electric & magnetic parts

No need 4 medium

Travels at the speed of light

Visible light

Any electromagnetic wave that the human eye can detect

Visible spectrum

Sequence of colors that makes up white light

Red, orange, yellow, green, blue, indigo, violet

Electromagnetic spectrum

Spectrum of different types of electromagnetic waves based on the energy of the waves

Whats in the electromagnetic wave spectrum in order?

radio waves, micro waves, infrared, visible light, ultra violet, x rays, gamma rays