These waves cannot transmit sound and picture information over long distances.

Radio waves have a very wide range of wavelengths.

Among the materials used in the activity, aluminum foil has the fastest speed in transmitting radio waves.

Paper allows radio waves to pass through them.

The speed of the radio wave is the same in all the materials it passed through.

The signal of the cellphone cannot be interrupted by any materials.

Radio waves cannot be seen by our naked eyes.

AF and FM make use of a radio wave.

Communication devices that make use of the same frequencies interfere with their transmission.