Fundamental Forces The interactions in the Universe are governed by four forces (strong, weak, electromagnetic and gravitational).
Physicists are trying to find one theory that would describe all the forces in nature as a single law. So far they have succeeded in producing a single theory that describes the weak and electromagnetic forces (called electroweak force). The strong and gravitational forces are not yet described by this theory.
|Interaction||Relative Strength||Range||Mediating Particle|