what is physics?

What is Physics


Physics is the field of science which uses applied mathematics as a tool to study behaviors of matter and energy and relates it with other physical and chemical properties. 
Information
The main purpose of physics is to learn about how the universe behaves. It provides the basic laws and theories to understand the universe. It is also called "knowledge of nature". 

Physics and Universe

Physics helps us understand the world as well as the world around us. The Big Bang Theory is a modern theory in terms of the origin of Earth. In the Big Bang Theory scientists decided to let us look at the larger picture, let us find out how the universe came into existence. The word big bang means "big explosion". According to this theory, before the universe came into existence, all matter was imprisoned in a very hollow space, equivalent to thousandths of a needle. If matter has a lot of energy, more than any other source of energy in the world, gravity becomes the force pulling things apart. So according to science, that was the beginning of the Big Bang point when all substances began to detach from one another after an explosion and spread into space. After the universe came into being 13.8 billion years ago, it was neither the sun, nor the stars, nor the galaxy, in fact, there were clouds of large hydrogen gas created just because of the explosion. The clouds in the space in which the hydrogen and helium content was high, the gases began to shrink and shrink to form extremely hot bodies, which we call "stars." In addition to those stars where the number of gases was low, gases also shrunk and became hot objects that were smaller than stars. And due to the greater attraction of their nearest star, they began to revolve around it. We call these objects 'planets'. Many stars were formed by the attraction of each other and thus galaxies came into existence. The galaxy in which the sun, stars, and planets are present is called the "Milky Way". It is named after the Maliki way because many of its stars look white.