Knowledge of nature, Physics

Physics is a natural science that deals with movement, energy and matter. Some fields of science see nature as matter in motion, obeying certain laws of nature. In fact, for this reason the most fundamental science is generally understood to be Physics (knowledge of nature).
 

For example, through theory, physicists are doing experiments. Experiments are investigate phenomena. Theory describing the physical phenomena in a simplified mathematical models. Laws are expressed in mathematical form. The experiments give results through measurements. Then compared with the results of the count given by the theory. The theory most well anticipated results of experiments in a wider area and makes the laws of physics. Laws are subject to change and restrictions. For instance, if a later more accurate and more extensive experiments show that this is necessary. The goal is to find the laws. To clarify, laws that describe the substance, motion and energy of the tiny microscopic subatomic level, to large macroscopic level.
 

The foundations laid the Isaac Newton and Galileo Galilei discovering the laws of mechanics in the 16th and 17th centuries. 

Branches of Physics

There are several types, such as:   

- Classical
- The Theory of Relativity 

- Quantum 

- Mechanics 

- Thermodynamics 

- Nuclear and other branches