Editing Interaction energy (section)

{{Short description|Contribution to the total energy caused by interactions between entities present in the system}}
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In [[physics]], '''interaction energy''' is the contribution to the total [[energy]] that is caused by an [[Fundamental interaction|interaction]] between the objects being considered.

The interaction energy usually depends on the relative position of the objects. For example, <math>Q_1 Q_2 / (4 \pi \varepsilon_0 \Delta r)</math> is the [[electrostatics|electrostatic]] interaction energy between two objects with charges <math>Q_1</math>, <math>Q_2</math>.