Physics is a natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force1. It deals with the structure of matter and the interactions between the fundamental constituents of the observable universe2.
The scope of physics encompasses not only the behavior of objects under the action of forces but also gravitational, electromagnetic, and nuclear force fields2. Its ultimate objective is the formulation of a few comprehensive principles that bring together and explain all such disparate phenomena2.
Physics plays an important role in all the natural sciences, and all such fields have branches in which physical laws and measurements receive special emphasis, bearing such names as astrophysics, geophysics, biophysics, and even psychophysics2.
In essence, physics can be defined as the science of matter, motion, and energy. Its laws are typically expressed with economy and precision in the language of mathematics2. Both experiment, the observation of phenomena under conditions that are controlled as precisely as possible, and theory, the formulation of a unified conceptual framework, play essential and complementary roles in the advancement of physics2.
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