The 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 is radiant energy?

Back

Radiant energy is energy that travels in waves and spreads out from its source in all directions.

Front

What type of waves are used in broadcasting?

Back

Radio waves are used in broadcasting.

Front

What portion of the electromagnetic spectrum is made up of visible light?

Back

Only a small portion of the electromagnetic spectrum is made up of visible light.

Front

Which wavelengths of the EM spectrum are dangerous to life?

Back

Ultraviolet (UV), X-rays, and gamma rays are dangerous to life.

Front

As frequency increases, what happens to energy?

Back

As frequency increases, energy increases.

Front

What are radio waves?

Back

Radio waves are a type of electromagnetic radiation with the longest wavelengths, used for communication.

Front

What are microwaves?

Back

Microwaves are electromagnetic waves with shorter wavelengths than radio waves, used in cooking and communication.

Front

What is infrared radiation?

Back

Infrared radiation is electromagnetic radiation with wavelengths longer than visible light, often felt as heat.

Front

What is visible light?

Back

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