GCSE SCIENCE PHYSICS HIGH SCHOOL - Electromagnetic Waves - Microwaves - Uses - Satellites - Mobile Phones - Cooking

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Electromagnetic Waves - Microwaves.

Microwaves have wavelengths shorter than radio waves.

Some of these wavelengths pass easily through the atmosphere
and are used to transmit information to satellites.
Mobile phone networks use microwaves.

Other microwaves have wavelengths which are absorbed by water molecules.
Microwave cookers use these waves which give energy
to the water molecules in food, causing it to get hot.

Living cells can also absorb microwaves.
The cells may be damaged or killed by the heating effect of the waves.

Headings Waves Search Questions

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