What is Resonance?
{{complex|date=May 2023}} [[File:Resonance.PNG|thumb|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> The resonator may have a ''fundamental frequency,'' and any number of ''[[harmonic]]s''. 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. Another example can be seen in a [[Swing (seat)|playground swing]]. There is one specific rate at which you must push away a person on a swing to cause the swing to go high. This rate is the resonant frequency. In [[earthquake engineering]], on contrary, any possibility of a resonance is detrimental for the [[building|building structure]]. The [[Kirkwood gap]] and other connections among [[orbit]]s are caused by [[orbital resonance]]. ==Related pages== * [[Resonator]] * [[Seismic damper]] * [[Vibration control]] * [[Vibration isolation]] ==References== {{commons category|Resonance}} {{reflist}} [[Category:Physics]] [[Category:Mechanical vibrations]] [[Category:Earthquake engineering]]