Temperature, heating and the EM spectrum

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  • Created by: Laurenkj
  • Created on: 08-04-18 11:11
EM radiation transfers … From a … to an …
EM radiation transfers energy from a source to an aborber
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What 4 things can happen when radiation is absorbed and what does it depend on
Ionisation, Chemical change, heating effect or varying electric current. It depends on the wavelength of the radiation
2 of 6
How does microwave radiation cause heating
The metal case reflects the radiation back into the microwave
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Why can you cook a potato in the microwave but not a dry biscuit
As a potato contains water so it absorbs microwave radiation
4 of 6
Could microwaves cook a person? Why?
Yes because humans have lots of water in them
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What safety features do microwave ovens have to protect users
A hidden switch stops oven operating with the door open
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Other cards in this set

Card 2

Front

What 4 things can happen when radiation is absorbed and what does it depend on

Back

Ionisation, Chemical change, heating effect or varying electric current. It depends on the wavelength of the radiation

Card 3

Front

How does microwave radiation cause heating

Back

Preview of the front of card 3

Card 4

Front

Why can you cook a potato in the microwave but not a dry biscuit

Back

Preview of the front of card 4

Card 5

Front

Could microwaves cook a person? Why?

Back

Preview of the front of card 5
View more cards

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