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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 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) • Phosphorescent (artificial) • Chemiluminescent (artificial) • Bioluminescent (?)
Incandescent Sources Electrical thermal light
Fluorescent Sources Electrical absorbed UV phosphor absorbed light
Chemiluminescent Sources Chemical light