Physics - wikipedia, the free encyclopedia, Physics (from ancient greek: φυσική (ἐπιστήμη) phusikḗ (epistḗmē) “knowledge of nature”, from φύσις phúsis "nature") is the natural. Quantum mechanics - wikipedia, the free encyclopedia, Quantum mechanics (qm ; also known as quantum physics, or quantum theory) is a branch of physics which deals with physical phenomena at nanoscopic scales where the. Plasma (physics) - wikipedia, the free encyclopedia, Degree of ionization . for plasma to exist, ionization is necessary. the term "plasma density" by itself usually refers to the "electron density", that is, the number.
Power (physics) - wikipedia, the free encyclopedia, In physics, power is the rate of doing work. it is equivalent to an amount of energy consumed per unit time. in the mks system, the unit of power is the joule per. Work (physics) - wikipedia, the free encyclopedia, "mechanical work" redirects here. for other uses of "work" in physics, see work (electrical) and work (thermodynamics)..