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: [[Microwave]]s can cause alternating currents in [[metal]]s.
: [[Microwave]]s can cause [[water]] [[molecule]]s to [[oscillate]], [[heating]] the [[water]].
: [[Microwave]]s are [[Transverse Wave|transverse waves]].
: [[Microwave]]s can travel through a [[vacuum]] as well as through [[gas]]es in the [[Earth's Atmosphere|Earth's atmosphere]].
: The [[speed]] of [[microwave]]s through a [[vacuum]] is 300,000,000[[m/s]].
As a [[wave]] [[microwave]]s can be:
*[[Transmit|Transmitted]] - [[Microwave]]s can pass through a [[medium]].
*[[Absorb (physics)|Absorbed]] - The [[energy]] [[Energy Transfer|transferred]] by [[microwave]]s can be taken in by certain [[material]]s, particularly [[metal]]s.
*[[Reflection|Reflected]] - [[Microwave]]s can bounce off an [[interface]] between two [[medium|media]]. This can be either [[Diffuse Reflection]] or [[Specular Reflection]].
*[[Refraction|Refracted]] - [[Microwave]]s can change direction when they cross the [[interface]] between two [[medium|media]].
====Applications====
: [[Microwave]]s can be used in communication because they can be created by [[Alternating Current|alternating current]] and can cause an [[Alternating Current|alternating current]] in [[metal]]s.