Radio waves

learn how they work here!!!

What is a radio wave?

Radio waves have the lowest frequency and the longest wavelengths. They have the weakest energy of all EM waves.

These waves are used for radios AM and FM and HAM radios and TV's

Here are some examples.

Big image

sat alight dish- Receives radio waves.


It is used to listen to music by picking up radio waves sent by the radio stations.

wavelength Range: >1mm

radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Radio waves have frequencies from 300 GHz to as low as 3 kHz, and corresponding wavelengths ranging from 1 millimeter (0.039 in) to 100 kilometers (62 mi).

Frequency Range: <3x1011 Hz

Radio waves are EM waves that have wavelengths between 1 millimeter and 100 kilometers (or 300 GHz and 3 kHz in frequency).

fun facts

  • Radio waves can travel through concrete, wood, and bricks well.
  • Radio waves can not travel through electric conductors.
  • Radio waves have the longest wavelengths in the electromagnetic spectrum.
  • Anything that is somewhat warm give off some amount of radio waves