EM Spectrum Review

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

Which type of electromagnetic wave has the least amount of energy?

Back

Infrared rays have the least amount of energy compared to UV rays, visible light, and gamma rays.

Front

What type of electromagnetic waves are used in ovens and cell phone communications?

Back

Microwaves are used in ovens and cell phone communications.

Front

What is the relationship between wavelength and frequency?

Back

A wave with a large wavelength has a low frequency and low energy.

Front

Which color of visible light has the most energy?

Back

Violet light has the most energy among the colors of visible light.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive peaks (crests) of a wave.

Front

What is frequency?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).

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).

Front

What type of electromagnetic radiation is used for medical imaging?

Back

X-rays are used for medical imaging.

Front

What is the difference between ultraviolet rays and infrared rays?

Back

Ultraviolet rays have higher energy and shorter wavelengths than infrared rays.