+
4 Tutorials that teach Electromagnetic Spectrum
Take your pick:
Electromagnetic Spectrum

Electromagnetic Spectrum

Description:

This lesson will introduce the electromagnetic spectrum and the properties and uses of the waves it contains.

(more)
See More
Introduction to Psychology

Analyze this:
Our Intro to Psych Course is only $329.

Sophia college courses cost up to 80% less than traditional courses*. Start a free trial now.

Tutorial

 

The electromagnetic spectrum shows the complete range of all the types of electromagnetic waves in order of frequency. The electromagnetic spectrum is made up of radio waves, infrared waves, visible light, ultraviolet rays, x-rays and gamma rays.

 

Radio waves:

            Longest wavelength, lowest frequency

            Used to broadcast radio that you listen to

            Microwaves are types of radio waves used to cook food or use cell phones

 

Infrared rays:

            Heat you feel radiating off of things

            Used to make heat lamps or used to cook food on your stovetop

 

Visible light:

            Colors that we see are made up of visible light waves

            Different colors have different wavelengths

            White light is a mixture of all colors in the visible light spectrum

 

Ultraviolet rays (UV rays):

            Contain a lot of energy due to short wavelength

            Can damage cells if there is too much exposure

            Moderate amounts from the sun can aide in vitamin D production

 

X-rays:

            Can penetrate many types of matter because of higher amounts of energy

            Used in x-ray machines in the medical industry

            Also used in some engineering projects

 

Gamma rays:

            Shortest wavelength, highest frequency

            Used in medical industry to treat cancer

 

Source: Prentice Hall Science Explorer. Sound and Light. Copywright 2007 Pearson Education Inc.