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We can use special cameras to 'see' animals and people in the dark. What do these cameras detect?
Infrared Radiation.
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Every object emits infrared radiation. True or False?
True.
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When does an object emit more infrared radiation?
When it is hotter.
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Name all electromagnetic waves in order of the electromagnetic spectrum.
Radio Waves, Microwaves, Infrared Radiation, Visible Light, Ultraviolet, X-Rays, Gamma Rays.
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The earth's atmosphere blocks what?
Most of the radiation that would harm us.
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What is the greenhouse effect?
The earth's atmosphere acts like a greenhouse made of glass. In a greenhouse: short wavelength infrared radiation from the sun can pass through the glass to warm the objects inside the greenhouse. IR from these warm objects is trapped inside.
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Other cards in this set

Card 2

Front

Every object emits infrared radiation. True or False?

Back

True.

Card 3

Front

When does an object emit more infrared radiation?

Back

Preview of the front of card 3

Card 4

Front

Name all electromagnetic waves in order of the electromagnetic spectrum.

Back

Preview of the front of card 4

Card 5

Front

The earth's atmosphere blocks what?

Back

Preview of the front of card 5
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