For centuries there has been considerable interest in developing a simple, but comprehensive relationship for physical systems including electric and magnetic, mass, and wave interactions, even before the concepts were well defined. Constraints to the problem have been curved space and divergence of time. An alternative coordinate system is necessary to satisfy these constraints. The mathematics are no more complex than vector algebra, in a curved space. Dynamic energy defines activity over time. One dynamic energy equation encompasses electric-magnetic, mass-diffusion, and constant-waves over time into a unified field theory for node, point or lumped parameters. The application of field volume and space vector provides a distributed fluid or field representation. The three terms in the unified field relationship succinctly describe Newton motion as well as Einstein relativity. As would be expected, Maxwell's suite of equations is inherent in the relationship. Planck's wave concept and energy bundles or quanta are integral terms.