Mechanical Waves Versus Electromagnetic Waves
![Sound Waves Versus Light Waves](https://factmyth.com/wp-content/uploads/2016/04/sound-waves-versus-light-waves.jpg)
There are two types of waves: mechanical waves like sound that must travel through a medium like air, and electromagnetic waves like light that don’t.
Sound is a mechanical wave, in simple terms, pressure displacing and vibrating molecules in a medium like air or water (which is perceived as audible sound). The other type of wave is an electromagnetic wave, which doesn’t need a medium.
There are two types of waves: mechanical waves like sound that must travel through a medium like air, and electromagnetic waves like light that don’t.