Microwave
Revision as of 21:59, 20 February 2019 by NRJC (talk | contribs) (Created page with "==Key Stage 4== ===Meaning=== '''Microwaves''' are the second lowest frequency and second longest wavelength electromagnetic waves. ===About...")
Contents
Key Stage 4
Meaning
Microwaves are the second lowest frequency and second longest wavelength electromagnetic waves.
About Microwaves
Properties
- Microwaves can cause alternating currents in metals.
- Microwaves can cause water molecules to oscillate, heating the water.
Applications
- Microwaves can be used in communication because they can be created by alternating current and can cause an alternating current in metals.
- Microwaves can be used for cooking because they cause water molecules and fat molecules to oscillate increasing the temperature of the food.
Dangers
- Microwaves can cause internal heating of living creatures because they are made of water which is heated by microwaves.