Water Tank

1.

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