EMS Practice

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves of energy that travel through space at the speed of light. They include a range of waves such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

Front

Which electromagnetic waves have the longest wavelength?

Back

Radio waves have the longest wavelength in the electromagnetic spectrum.

Front

Which color of visible light has the lowest frequency?

Back

Red light has the lowest frequency among the visible colors.

Front

Which electromagnetic waves have the shortest wavelength?

Back

Gamma rays have the shortest wavelength in the electromagnetic spectrum.

Front

Do all electromagnetic waves travel at the same speed in a vacuum?

Back

Yes, all electromagnetic waves travel at the same speed in a vacuum, which is approximately 299,792 kilometers per second.

Front

Which electromagnetic waves have the lowest frequency?

Back

Radio waves have the lowest frequency among all electromagnetic waves.

Front

What is the relationship between wavelength and frequency in electromagnetic waves?

Back

Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa.

Front

What type of electromagnetic wave is used in microwave ovens?

Back

Microwaves are the type of electromagnetic wave used in microwave ovens.

Front

What is visible light?

Back

Visible light is the portion of the electromagnetic spectrum that can be seen by the human eye, consisting of colors ranging from violet to red.

Front

What are x-rays used for?

Back

X-rays are used in medical imaging to view the inside of the body, particularly bones and teeth.