Editing Coupling (physics) (section)

{{Short description|Two systems are coupled if they are interacting with each other}}
{{Coupling in molecules}}

In [[physics]], <dfn>two objects are said </dfn>to be coupled when they are interacting with each other. In [[classical mechanics]], coupling is a connection between two [[Oscillation|oscillating]] systems, such as [[pendulum]]s connected by a spring. The connection affects the oscillatory pattern of both objects. In [[particle physics]], <dfn>two particles are coupled </dfn>if they are connected by <dfn>one of the four </dfn>[[Fundamental interaction|fundamental forces]].