World—Universe Cosmology (WUC) proposes that the physical World is a finite, boundless three-dimensional Hypersphere forming the surface of an expanding four-dimensional Nucleus embedded in the Eternal Universe. The Nucleus expands at the fundamental speed c , and the radius of curvature of the Hypersphere is determined by the evolving World Parameter Q .Within this framework, the Eternal Universe continuously generates Universe-Created Matter (UCM) through the formation of Universe-Created Particles (UCPs) within the expanding Nucleus. These particles possess four spatial coordinates and four spatial momentum components.The present paper advances a hypothesis concerning the physical origin of three fundamental quantities: Time, Energy, and Angular Momentum. Time is interpreted as our three-dimensional description of the evolution of the fourth spatial position, identified with the radius of the expanding Nucleus. Energy represents the fourth spatial momentum component transformed by the fundamental expansion speed c . Angular Momentum is proposed to manifest as a collective property of organized UCP ensembles whose circulation already exists within the four-dimensional Nucleus immediately before their entry into the three-dimensional Hypersphere.The paper also summarizes the proposed interconnectivity of primary cosmological parameters through the evolving World Parameter Q . These ideas suggest a common four-spatial foundation for fundamental physical quantities and cosmological parameters. The proposed interpretation is presented as a physical hypothesis intended to stimulate further theoretical investigation and observational testing.