How Do Mobile Phones Work?
Microwaves are not only used to heat food. Mobile phones utilise this type of electromagnetic radiation, allowing us to communicate over large distances. Physics - Waves - Learning Points. Mobile phones work by converting the sound into electrical signals, which can be transmitted as microwaves. Microwaves have a lower frequency than infrared and visible light, but shorter wavelengths and higher frequencies than radio waves. As high frequency waves, microwaves can carry a lot of information - and their short wavelength means the transmitter, or mobile handsets, can be small. Base stations around the world help microwaves to travel further. A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.
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