What is the definition of physics? Include the study of matter, energy, space, and time, and the interactions thereof

Physics is the branch of science concerned with the physical properties (i.e. the fundamental nature of objects in at least four states as well as the motion states) of everything in our observable universe. The interpretation of the universe in Physics is that the universe is a construct of the fabric of space-time where all motion states are governed by at least four forces that govern interactions (the events that change motion state of matter): The gravitational force, the strong nuclear force, the weak nuclear force, and the electromagnetic force. The fruit of the study lies in a concept called Loretz's Symmetry that says that the laws of the universe (physics thereof) must be the same anywhere in cosmos (space-time fabric).