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physical system (Noun) The portion of the physical universe chosen for analysis, with everything outside the system known as the environment. Freebase (2.00 / 2 votes) Rate this definition: Physical system. In physics, the word system has a technical meaning, namely, it is the portion of the physical universe chosen for analysis. Everything outside the system is known as the environment, which in analysis is ignored except for its effects on the system.
Scalars and Vectors. Physics is a mathematical science. The underlying concepts and principles have a mathematical basis. Throughout the course of our study of physics, we will encounter a variety of concepts that have a mathematical basis associated with them.calars and Vectors. Physics is a mathematical science. The underlying concepts and principles have a mathematical basis. Throughout the course of our study of physics, we will encounter a variety of concepts that have a mathematical basis associated with them.