The main branches of physics are astrophysics, classical mechanics, electromagnetism, optics, quantum mechanics, relativity and thermodynamics. Physics is the branch of science concerning the study of the nature and prop... More »

The sciences are more commonly divided into three main groups, or branches: life science, which includes the study of biological life; physical science, which includes physics and chemistry; and earth science, which conc... More »

The two main branches of physical science are physics and chemistry. Physics primarily deals with forces and the interaction of matter and energy. Chemistry, on the other hand, studies how interaction alters the properti... More »

Astronomy, acoustics, astrophysics, biophysics, chaos theory, chemical physics, computational physics, cosmology, cryophysics (cryogenics), crystallography, electromagnetism, electronics, fluid dynamics, geophysics, high... More »

Quantum physics, also referred to as quantum mechanics, is "A theory of matter that is based on the concept of the possession of wave properties by elementary particles," according to Merriam-Webster. Quantum physics dea... More »

In the theory of relativity in the study of physics, the interval between two events is called proper time. Proper time is based on a clock that measures both events. More »

Isaac Newton developed the principles of modern physics through his studies on mathematics, optics and motion. His book "Philosophiae Naturalis Principia Mathematica," or "Mathematical Principles of Natural Philosophy," ... More »