Units & measurements Units plays an important roll in physics. For example :- Your friend give a task to measure the length of the wire Ans:- The length of this wire is 10 meters Here 10 represents the length & meters the Units or dimension . Lets goo to deep Fundamental quantities. The physical quantities which are independent of other quantities are called fundamental quantities Example:- mass, length, temperature, etc., Derived quantities. The physical quantities which are derived from fundamental quantities are called Derived quantities Example:- area, velocity, viscosity, pressure, Force constant, etc., The SI unit of the system of units. In 1971,General conference of weights and measures introduced a logical and rationalized system of units known as international system of units,...
Physics What is physics? Physics is the branch of science that deals with the structure of matter and how the fundamental constituents of the universe interact . It studies objects ranging from the very small using quantum mechanics to the entire universe using general relativity. Physics is a small word but it can deal the entire universe The word physics come from ancient greek it means "knowledge of nature" . In the physics they are two important scientists NEWTON ALBERT EINSTEIN A scientist who specializes in the field of physics is called physicist This physics can divided into lot of branches It aims to understand how the universe works Physics can be classified into various branches, but classical physics is mainly concerned with energy and matter. The traditional branches of classical physics are Optics, Acoustics, Electromagnetics, and Classical mechanics. With the rapid development of physic...