Back to Electromagnetic Spectrum (ELL)

Study Guide

Quick meanings for every wave word.

WordMeaning
Radio WavesLong-wavelength electromagnetic radiation used for broadcasting and communication.
MicrowavesElectromagnetic radiation used in radar, communication, and ovens that transfer energy to food.
Infrared WavesElectromagnetic radiation with wavelengths longer than visible red light; warm objects emit it.
Visible LightElectromagnetic radiation that human eyes can detect.
Ultraviolet (UV)Electromagnetic radiation with wavelengths shorter than visible violet light; excessive exposure can damage skin and eyes.
X-raysHigh-energy electromagnetic radiation used, for example, to image structures inside the body.
Gamma RaysElectromagnetic radiation with very high frequencies and high energy per photon, produced by nuclear and other energetic processes.