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Mini-Quiz: Infrared Radiation

by Ron Kurtus (revised 3 March 2010)

Take this Mini-Quiz to check your understanding of the lesson material.



1. What does carbon dioxide do to infrared radiation?

It absorbs the radiation, thus heating the CO2

It reflects the radiation back into space

It combines with IR radiation to create water and oxygen

2. How can you tell if an object is radiating infrared?

It is impossible to tell, since infrared is invisible

It will glow in the colors of the spectrum

You can feel the effect of the radiation in warming your skin

3. What is an important use for infrared radiation?

It allows people with night vision goggles to see in the dark

It allows television signals to come from outside to your set

It allows people to see the Sun

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.


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