Ultraviolet Light

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$Water Tank 1. 2. 4. 3. Use the following terms to correctly label the diagram below: A. reflected wave B. refracted wave C. incident wave D. transmitted wave 5. Why is wave 2 not as bright as wave 1? 6. Why are waves 3 and 4 not as straight as wave 1?$

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!

UltravioletUltraviolet
Emitted by
welding
torches
Can’t
see
these!

FluorescenceFluorescence
•UV light is absorbed,
•and partially emitted as
visible light

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Ultraviolet Light

1. Water Tank 1. 2. 4. 3. Use the following terms to correctly label the diagram below: A. reflected wave B. refracted wave C. incident wave D. 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?

2. ReviewReview • Visible light • ROY G. BIV • RBG • Transmitted, reflected, absorbed

3. UltravioletUltraviolet • “UV” light • Shorter wavelengths than visible light • Higher energy than visible light • Just above what humans can see Can’t see these!

6. UltravioletUltraviolet • Emitted by the sun • Can cause sun burn, cataracts, and cancer Can’t see these!

7. 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!

8. UltravioletUltraviolet • UV light can break down: –Fabrics –Plastics –Some paints • And can be harmful to plant life and animal life Can’t see these!

10. UltravioletUltraviolet Emitted by welding torches Can’t see these!

11. FluorescenceFluorescence •UV light is absorbed, •and partially emitted as visible light

12. ScorpionsScorpions

13.

14. Money

Ultraviolet Light

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