Introduction to Physics and It's Definition

Introduction:

 Man has always been curious to know the 'how' and 'why' behind the working and function of things. He asks the fundamental questions like how did the universe begin? How does it change? What rules govern its behavior? Why do things fall to the ground?  Why does the moon seem to change its shape during the month? What goes inside the sun to make it hot? Physics is all about trying to answer questions like these. All of these phenomena in the universe involve the study of matter and energy. 

     DEFINITION:

                            'Physics is the branch of science that involves the study of the physical universe: energy, matter, and how they are related'.

                The study of Physics is to understand the world around us, the world inside us, and the world beyond us. Physics covers a wide range of phenomena, from the smallest sub-atomic particles to the largest galaxies and universe.

                Physicists investigate the motion of electrons and rockets the energy in sound waves and electric circuits, the structure of the proton, and the universe.