Physics is one of the most important branches of science dealing with the study of nature and the universe. The study of physics enables us to understand about nature and its workings. There are lots of theories and concepts in physics, including classical mechanics, wave mechanics, general relativity and quantum mechanics. All these theories have helped us to make our understanding about the universe and nature much better.
We can divide the areas of physics into three main branches. Among these branches are applied physics, experimental physics and natural philosophy. Applied physics mainly includes areas such as optics, biophysics, particle physics, nuclear physics, energy, nuclear medicine etc. Experiments are conducted in all these branches to test the theoretical predictions made by the various theories of physics. Some of the phenomena that are tested are super particles, gravity, black holes, structure of the universe, free energy, symmetric vacuums and many more.
Nowadays there are lots of universities that offer online education courses for people interested in learning more about the various branches of physics. Some of the best colleges in physics offer such courses and can be taken up by students who are already enrolled in regular universities or colleges. The first course that is generally taken up by students to study physics is Classical Physics. After this a student can go on to specialize in one of the two branches of physics, namely, experimental or natural physics. The number of years that a student takes up in any of these branches depends upon his learning objectives and his aptitude.