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.