Transcript
Water Tank
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2. 4.
3.
Use the following terms to correctly label the diagram below:A. reflected waveB. refracted waveC. incident waveD. transmitted wave
5. Why is wave 2 not as bright as wave 1?
6. Why are waves 3 and 4 not as straight as wave 1?
ReviewReview• Visible light• ROY G. BIV• RBG• Transmitted, reflected,
absorbed
UltravioletUltraviolet
• “UV” light
• Shorter wavelengths than visible light
• Higher energy than visible light
• Just above what humans can see
Can’t see
these!
UltravioletUltraviolet• Emitted by the sun
• Can cause sun burn, cataracts, and cancer
Can’t see
these!
UltravioletUltraviolet• Most UV light from the sun is
absorbed by the atmosphere
• On some days more UV light gets through than others
Can’t see
these!
UltravioletUltraviolet• UV light can break down:
–Fabrics–Plastics–Some paints
• And can be harmful to plant life and animal life
Can’t see
these!
UltravioletUltravioletEmitted by
welding torches
Can’t see
these!
FluorescenceFluorescence
• UV light is absorbed,
• and partially emitted as visible light
ScorpionsScorpions
Money
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