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 happens to frequency as wavelength decreases?

Back

As the wavelength decreases, the frequency increases.

Front

What is amplitude in a wave?

Back

Amplitude is the height of the wave from the rest position, indicating the wave's energy.

Front

Which electromagnetic waves are used in heat lamps?

Back

Infrared rays are used in heat lamps.

Front

What type of electromagnetic wave has the longest wavelength?

Back

Radio waves have the longest wavelength and the lowest frequency.

Front

What is the relationship between frequency and energy in waves?

Back

Higher frequency waves have higher energy, while lower frequency waves have lower energy.

Front

What are microwaves used for?

Back

Microwaves are used in cooking and in communication technologies.

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 ultraviolet rays?

Back

Ultraviolet rays are electromagnetic waves with a shorter wavelength than visible light, often associated with sunburn.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s).