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This quiz contains 7 questions from a mix of 1 subtopics.
shorter / longer
Microwaves and infrared waves have wavelengths than visible light.
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Microwaves that can be absorbed by water molecules are used for:
Microwave ovens
Satellite communication
Seeing animals in the dark
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Microwaves that cannot be absorbed by water molecules are used for:
Microwave ovens
Satellite communication
Seeing animals in the dark
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some / all / heat
Infrared radiation is emitted from objects that have thermal energy.
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True or false? Higher temperature objects emit less infrared radiation than lower temperature objects.
True
False
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Infrared cameras specialise in spotting live organisms because:
(Select all that apply)
Infrared cameras can detect the infrared radiation emitted by animals
Animals are attracted to infrared camera
Animals are warmer than the surrounding environment and therefore emit more infrared radiation
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Infrared r can be used to cook food and heat a room.
Both rely on h metal to a very high t.
The hot metal e a lot of infrared radiation.
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