Electromagnetic Spectrum

Front

What is the electromagnetic spectrum?

Back

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

Front

What is the shortest wavelength in visible light?

Back

Violet.

Front

Which type of electromagnetic wave has the highest frequency?

Back

X-rays.

Front

What is the major source of energy on Earth?

Back

Electromagnetic waves from the sun.

Front

What is the speed of all electromagnetic waves?

Back

The speed of light.

Front

What are x-rays used for?

Back

X-rays are used to penetrate solids and are commonly used in doctor's offices and airports.

Front

What type of electromagnetic wave is used in communication?

Back

Radio waves.

Front

What is the wavelength range of visible light?

Back

Visible light has wavelengths ranging from approximately 400 nm (violet) to 700 nm (red).

Front

What type of electromagnetic radiation is used in cooking?

Back

Microwaves.

Front

What is infrared radiation commonly used for?

Back

Infrared radiation is commonly used in remote controls and thermal imaging.