Fundamental forces in Physics

Is there 5, 4, 3, 2 or 1 fundamental forces in nature?

Nordberg Interpretation

Traditional Interpretation

This grand unification theory -- the Ball-of-Light Particle Model -- treats 3 fields as fundamental: Electric, Magnetic, and Gravitational. These 3 fields are combined in the general equation, E cross B equals G, and are thus a unified force.

X,Y,Z axis: Electric field cross Magnetic field equals Gravitational field

This grand unification theory treats the traditional Strong and Weak forces as manifestations (or combinations) of this unified force.

Because the traditional Strong and Weak forces can be derived from the Electric, Magnetic, and Gravitational fields, and because the traditional Strong and Weak forces are not mutually exclusive from the Electric, Magnetic, and Gravitational fields, they are not considered as fundamental in this theory, as has been the tradition.

Since the Electric, Magnetic, and Gravitational fields are treated in as being "Unified" in this theory -- and can be used to explain the Strong and Weak forces -- it is possible to think of these three forces as one force -- the electromagneticgravitational force, or, the Unified force.

Currently, physicists describe nature as having 4 fundamental forces: the Electromagnetic force, the Strong nuclear force, the Weak nuclear force, and the Gravitational force.

At one point in history, the Electric and Magnetic fields were treated as separate. If you count these two fields as separate and add them to the other 3 traditional force fields -- the Gravitational, Strong, and Weak fields -- then, nature might be described as having a total of 5 fundamental fields in Physics.

Physicists currently treat the Electric and Magnetic as being "Unified." That is why they usually combine them and call them the Electromagnetic force.
Some physics theories treat the Electromagnetic, Weak and Strong fields as being “Unified” thus leaving 2 fields -– the gravitational and the electromagnetic-strong-weak fields.

There are no Grand Unification theories that are accepted in the scientific community as having unified the gravitational and the electromagnetic-strong-weak fields.