View source for Resonance

{{physics}}
[[File:Resonance.PNG|thumb|200px|Resonance effect for various input [[frequency|frequencies]] and damping coefficients.]]In [[physics]], '''resonance''' is the tendency of a system to [[vibration|vibrate]] with increasing [[amplitude]]s at some [[frequency|frequencies]] of excitation. These are known as the system's ''resonant frequencies'' (or ''resonance frequencies'') <ref>Tongue, Benson, ''Principles of Vibration'', Oxford University Pres, 2001, {{ISBN|0-195-142462}}</ref>.

An example of useful effect of resonant frequency is a [[guitar]] string which makes a characteristic noise when it is touched. The noise depends on how thick or slack the string is.

In [[earthquake engineering]], on contrary, any possibility of a resonance is detrimental for the [[building|building structure]].

==Other pages==
{{commonscat|Mechanical vibrations}}
*[[Vibration control]]

==References==
{{reflist}}
{{Vibrations}}

[[Category:Physics]]
[[Category:Earthquake engineering]]