what is physics definition

The branch of science which deals with the study  of matter and energy and the relationship between them is called physics.

we can also called about what is physics  The study of physics involves investigation of such things as the laws of motion,the structure of space and time,the nature and type of forces that hold different materials
together, the interaction between different particles, the interaction of electromagnetic radiation with matter and so on.

energy, Inertia, kinetic and potential energy, Momentum and Impulse, physics, Scalars and vectors