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A branch of physics that studies atoms as isolated systems of electrons and an atomic nucleus. Compare nuclear physics. atomic structure atomic weight (A) The sum total of protons (or electrons) and neutrons within an atom. audio frequency A periodic vibration whose frequency is in the band audible to the average human, the human hearing range.
This is a glossary for the terminology often encountered in undergraduate quantum mechanics courses. Cautions: Different authors may have different definitions for the same term. The discussions are restricted to Schrödinger picture and non-relativistic quantum mechanics. Notation: | - position eigenstate
Glossary of chemistry terms; Glossary of civil engineering; ... Glossary of physics; Glossary of power electronics; Glossary of probability and statistics;
velocity in terms of the speed of light c: unitless beta particle: gamma: Lorentz factor: unitless photon: gamma ray: shear strain: radian heat capacity ratio: unitless surface tension: newton per meter (N/m) delta: change in a variable (e.g. ) unitless Laplace operator: per square meter (m −2)
The branch of physics that studies electrical charges and electrical currents. electrolyte A liquid or solid medium that carries electric current in the form of ions. electromagnet A magnet that generates a magnetic field from an electric current. electromagnetic compatibility The control of unwanted electromagnetic interference ...
Physics – branch of science that studies matter [9] and its motion through space and time, along with related concepts such as energy and force. [10] Physics is one of the "fundamental sciences" because the other natural sciences (like biology, geology etc.) deal with systems that seem to obey the laws of physics. According to physics, the ...
An online dictionary is a dictionary that is accessible via the Internet through a web browser. They can be made available in a number of ways: free, free with a paid subscription for extended or more professional content, or a paid-only service.
Another group of physics terminology terms, exciton, magnon, phonon, plasmon, phason, [7] polaron, roton [8] etc., refers to quasiparticles – quanta of corresponding excitations (spin, heat, plasma, polarization waves), which do not exist separately and were imagined by theoretists to consistently describe properties of solids and liquids.