For those who are interested in the sciences and want to dive into the field of physics in greater detail, the following classification of branches in the physical sciences is for you. And, if you don’t see a subject that most wholeheartedly applies to your own interests, then, please, by all means, develop your own new branch of special sciences! Good luck!
Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties (luminosity, density, temperature and chemical composition) of astronomical objects such as stars, galaxies, and the interstellar medium, as well as their interactions.
Atomic and molecular physics is the study of the structure and characteristics of atoms and molecules.
Biophysics the science of the application of the laws of physics to life processes.
Condensed-matter (solid-state) physics is the study of the physical properties of solids, such as electrical, dielectric, elastic, and thermal properties, and their understanding in terms of fundamental physical laws.
Cosmology is the study of the universe as a whole, of the contents, structure, and evolution of the universe from the beginning of time to the future.
Geophysics is the study of the physical characteristics and properties of the earth; including geodesy, seismology, meteorology, oceanography, atmospheric electricity, terrestrial magnetism, and tidal phenomena.
Mechanics is the branch of physics concerned with the motion of bodies in a frame of reference.
Statistical Mechanics is the discipline that attempts to relate the properties of macroscopic systems to their atomic and molecular constituents.
Theoretical physics attempts to understand the world by making a model of reality, used for rationalizing, explaining, and predicting physical phenomena through a “physical theory”.
Thermodynamics is the study of the effects of changes in temperature, pressure, and volume on physical systems at the macroscopic scale by analyzing the collective motion of their particles using statistics.
The pretty proton. 