Electromagnetic Spectrum

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which includes radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

Front

What type of waves are used in broadcasting?

Back

Radio waves are used in broadcasting.

Front

What is an example of a device that uses radio waves?

Back

Cellphones and remote controls are examples of devices that use radio waves.

Front

How much of the electromagnetic spectrum is visible to the human eye?

Back

Only a small part of the electromagnetic spectrum is visible to the human eye.

Front

Which type of electromagnetic wave has the shortest wavelength?

Back

Gamma rays have the shortest wavelength and the highest frequency.

Front

Which type of wave has wavelengths longer than microwaves?

Back

Radio waves have wavelengths longer than microwaves.

Front

What are infrared waves used for?

Back

Infrared waves are used in heat lamps and remote controls.

Front

What is the frequency of gamma rays compared to radio waves?

Back

Gamma rays have a higher frequency than radio waves.

Front

What is visible light?

Back

Visible light is the part of the electromagnetic spectrum that can be seen by the human eye.

Front

What are x-rays commonly used for?

Back

X-rays are commonly used in medical imaging to view the inside of the body.