Browse Lessons
Assign Lesson

Help Teaching subscribers can assign lessons to their students to review online!

Assign Lesson to Students

Share/Like This Page

Electromagnetic Spectrum

Electromagnetic Spectrum

Electromagnetic Spectrum
Introduction: The electromagnetic spectrum represents the range of wavelengths or frequencies on which that electromagnetic radiation exists. Electromagnetic radiation on this spectrum is important to consider, especially with increasing concerns over Earth and changing climates. The use of fireworks, for example, destroys the ozone layer, leading to an increased amount of ultraviolet radiation entering and leading to increases in cases of skin cancer in humans.

The electromagnetic spectrum can be arranged from lowest to highest frequency as follows: Radio waves, microwaves, infrared radiation, visible light (ROYGBIV), ultraviolet radiation, X-rays, and gamma rays. In this arrangement, as frequency increases going from radio waves to gamma rays, the wavelength will decrease and the energy of the electromagnetic radiation will increase.

In general, electromagnetic radiation with higher frequencies and energies tend to be more dangerous. This is why destroying the ozone layer causes a major problem for humans, since ultraviolet radiation entering the Earth has high energy and high frequencies associated with it. It is also worth noting that the visible spectrum, in order from lowest to highest frequency, can be arranged as follows: red, orange, yellow, green, blue, indigo, and violet.

Required Video

Related Worksheets: