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Optics Unit. What is light?. What is light?. Energy that you can see. What are the properties of light?. Light can be transformed (changed) into other types of energy. Light travels in a straight line. Sources of light?. Sun (natural) Incandescent (artificial) Fluorescent (artificial)

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Optics unit

Optics Unit

What is light?


What is light
What is light?

Energy that you can see.


What are the properties of light
What are the properties of light?

  • Light can be transformed (changed) into other types of energy.

  • Light travels in a straight line.


Sources of light
Sources of light?

  • Sun (natural)

  • Incandescent (artificial)

  • Fluorescent (artificial)

  • Phosphorescent (artificial)

  • Chemiluminescent (artificial)

  • Bioluminescent (?)


Incandescent sources
Incandescent Sources

Electrical thermal light


Fluorescent sources
Fluorescent Sources

Electrical absorbed UV phosphor absorbed light



Chemiluminescent sources
Chemiluminescent Sources

Chemical light



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