Physics, the science that examines the structure of matter and the interactions between the universe's essential parts. In its widest definition, physics (from the Greek physikos) is concerned with both macroscopic and submicroscopic elements of nature. It examines not only the behaviour of things under the influence of certain forces, but also the nature and genesis of gravitational, electromagnetic, and nuclear force fields. Its ultimate goal is the creation of a few all-encompassing principles that explain and unify such divergent events. In order to get better grades in Maths class, ask to online homework help india.
The basic physical science is physics. Until very recently, physics and natural philosophy were used interchangeably to refer to the scientific discipline whose goal is the discovery and formulation of nature's basic rules. As the contemporary sciences have evolved and become more specialised, physics has come to refer to the portion of physical science that is distinct from astronomy, chemistry, geology, and engineering. Nevertheless, physics plays a major part in each of the natural sciences, and each of these disciplines includes subdisciplines that place specific emphasis on physical principles and measurements, such as astrophysics, geophysics, biophysics, and even psychophysics. The fundamental definition of physics is the study of matter, motion, and energy. Its laws are often articulated concisely and precisely in mathematical language.
Experiment, the observation of events under conditions that are as carefully controlled as possible, and theory, the development of a cohesive conceptual framework, play complementary and vital roles in the growth of physics. Physical experiments yield measurements, which are compared to the projected outcome of the theory. A law of physics is said to be embodied by a theory that accurately predicts the outcomes of applicable experiments. If a subsequent experiment necessitates it, a law is always vulnerable to change, replacement, or limitation to a more limited scope.
The ultimate goal of physics is to discover a coherent set of principles regulating matter, motion, and energy at small (microscopic) subatomic distances, at the human (macroscopic) scale of daily life, and at the greatest distances (e.g., those on the extragalactic scale). This ambitious objective has been accomplished to a remarkable degree. Despite the fact that a fully unified theory of physical phenomena has not yet been created (and may never be), a relatively small collection of fundamental physical rules appears capable of explaining all known events.