Action-at-a-distance forces are those types of forces that result even when the twointeracting objects are not in physical contact with each other, yet are able to exert a push or pull despite their physical separation. Examples of action-at-a-distance forces include gravitational forces.Gravitational forces are action-at-a-distance forces that act between two objects even when they are held some distance apart.
In physics, action at a distance is the concept that an object can be moved, changed, or otherwise affected without being physically touched (as in mechanical contact) by another object. That is, it is the nonlocal interaction of objects that are separated in space