Electromagnetic Spectrum

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is a continuous range of frequencies for electromagnetic radiation.

Front

What type of electromagnetic radiation is used for medical imaging to diagnose health issues in bones and teeth?

Back

X-rays.

Front

True or False: Radiant energy spreads out from its source in all directions.

Back

True.

Front

True or False: Both X-rays and gamma rays have higher frequencies than ultraviolet rays.

Back

True.

Front

What is the relationship between wavelength and frequency?

Back

The longer the wavelength, the lower the frequency.

Front

What are the main types of electromagnetic radiation in the spectrum?

Back

Radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

What is the speed of electromagnetic waves in a vacuum?

Back

Approximately 299,792 kilometers per second (or about 300,000 kilometers per second).

Front

What is visible light?

Back

Visible light is the portion of the electromagnetic spectrum that is visible to the human eye.

Front

What is the difference between ultraviolet rays and X-rays?

Back

Ultraviolet rays have lower frequencies than X-rays.

Front

What is the use of gamma rays in medicine?

Back

Gamma rays are used in cancer treatment and imaging.