Branches of Physics

Physics is a branch of science which studies nature on quantum level (atomic and sub-atomic), visible level (visible to human eye) and universe level (stars, galaxies, and other space structures). The word Physics is derived from Greek word "Physikos". The meaning of "Physikos" is knowledge of nature.

Main branches of Physics are listed below.

Classical Physics

The studies of Physics before 1900 are generally called as Classical Physics. Classical physics is mainly consisting of Newtonian physics. Newtonian physics contain studies related with laws of motion and gravity by Sir Isaac Newton.

Mechanics

Mechanics deals with the motion of bodies under the action of forces. It also studies about bodies which remains at rest. Static mechanics deals with the bodies at rest, whereas dynamic mechanics deals with the bodies in motion.

Geophysics

Geophysics deals with the study of the Earth, its shape, structure, earth's gravitational force, magnetic fields, earthquakes etc.

Thermodynamics

Thermodynamics is the study of relation between heat and other forms of energy like mechanical energy.

Modern Physics

Modern physics is mainly concerned with the Theory of Relativity and Quantum Mechanics conceived by Albert Einstein, Niels Bohr and Max Plank. The studies of Physics after 1900s are generally called as Modern Physics.

Nuclear physics

Nuclear physics deals with the nucleus of atom, its structure, constituents and behavior.

Quantum Mechanics

Quantum Mechanics is the study of atomic and sub-atomic particles. Quantum Mechanics describe the behavior sub-atomic particles like of photons, electrons, quarks, protons, neutrons etc. which are the basic building blocks of the universe.

Acoustics

Acoustics is the study of sound.

Optics

Optics is the study of light.

Astrophysics

Astrophysics is the study of universe and its building blocks like planets, stars, galaxies, blackholes, neutron stars, nebula etc.