6.8 KiB
| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Glossary of physics | 10/13 | https://en.wikipedia.org/wiki/Glossary_of_physics | reference | science, encyclopedia | 2026-05-05T07:51:11.278375+00:00 | kb-cron |
nanotechnology Also abbreviated as nanotech. The manipulation of matter on an atomic and molecular scale; a more generalized description by the National Nanotechnology Initiative is "the manipulation of matter with at least one dimension sized from 1 to 100 nanometres".
Navier–Stokes equations
neurophysics
neutrino A type of electrically neutral subatomic particle denoted by the Greek letter ν (nu). All evidence suggests that neutrinos have mass but that their mass is tiny even by the standards of subatomic particles. Their mass has never been measured accurately.
neutron A subatomic particle having a mass slightly greater than that of a proton but no electric charge. Along with protons they constitute the nucleus of every atom. Each neutron consists of one up quark and two down quarks.
prompt neutron Immediate emission of neutrons after a nuclear fission event.
delayed neutron Delayed emission of neutrons after a nuclear fission event, by one of the fission products (actually, a fission product daughter after beta decay).
neutron cross-section
newton (N)
Newton's laws of motion A set of three physical laws which describe the relationship between the forces acting on a body and its motion due to those forces. Together they form the basis for classical or Newtonian mechanics.
Newton's law of universal gravitation
Newtonian fluid
Newtonian mechanics
normal force
nuclear force
nuclear physics The branch of physics that studies the constituents and interactions of atomic nuclei.
nuclear reaction
nuclear transmutation
nucleon Either a proton or a neutron in its role as a component of an atomic nucleus.
nucleus
nuclide Also spelled nucleide. An atomic species characterized by the specific composition of its nucleus, i.e. by its number of protons, its number of neutrons, and its nuclear energy state.
== O ==
ohm The SI derived unit of electrical resistance.
Ohm's law The electric current through a conductor between two points is directly proportional to the potential difference across the two points.
optical tweezers An optomechanical device used for the capture, analysis, and manipulation of dielectric objects or particles, which operates via the application of force by the electric field of light.
optically detected magnetic resonance An optical technique for the initialisation and readout of quantum spin in some crystal defects.
optics The branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultraviolet, and infrared light; however, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties.
== P ==
paraffin
parallel circuit
parity
- (mathematics)
- (physics)
particle
particle accelerator
particle displacement
particle physics A branch of physics that studies the nature of particles, which are the constituents of what is usually referred to as matter and radiation.
Pascal's law A principle in fluid mechanics which states that pressure exerted anywhere in a confined incompressible fluid is transmitted equally in all directions throughout the fluid such that the initial pressure variations remain the same.
Pauli exclusion principle
pendulum
periodic table of the elements Also simply called the periodic table. A tabular display of the chemical elements organised on the basis of their atomic numbers, electron configurations, and recurring chemical properties. Elements are presented in order of increasing atomic number (number of protons).
phase (matter)
phase (waves)
phase equilibrium
phenomenology
phosphorescence
photoelectric effect
photon An elementary particle, the quantum of light and all other forms of electromagnetic radiation, and the force carrier for the electromagnetic force.
photonics
physical chemistry The study of macroscopic, atomic, subatomic, and particulate phenomena in chemical systems in terms of laws and concepts of physics.
physical constant
physical quantity
physics The natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.
piezoelectricity
pion
Planck constant (
h
{\displaystyle h}
) Also called Planck's constant. A fundamental universal physical constant that is the quantum of action in quantum mechanics.
Planck units
Planck's law
plasma
plasma physics
plasticity
pneumatics The study and control of mechanical force and movement generated by the application of compressed gas.
positron
potential energy
power
pressure The ratio of force to the area over which that force is distributed.
principle of relativity
probability A measure of the expectation that an event will occur or that a statement is true. Probabilities are given a value between 0 (will not occur) and 1 (will occur). The higher the probability of an event, the more certain one can be that the event will occur.
probability distribution
probability theory
proton
psi particle
pulley A wheel on an axle that is designed to support movement of a cable or belt along its circumference; one of six classical simple machines. Pulleys are used in a variety of ways to lift loads, apply forces, and transmit power.
pulse
pulse wave
== Q ==
quantization
quantum
quantum chromodynamics
quantum electrodynamics (QED) The relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism, giving a complete account of matter and light interaction.
quantum field theory A theoretical framework for constructing quantum mechanical models of subatomic particles in particle physics and quasiparticles in condensed matter physics.
quantum gravity
quantum mechanics A branch of physics dealing with physical phenomena at microscopic scales, where the action is on the order of the Planck constant. Quantum mechanics departs from classical mechanics at atomic and subatomic length scales, and provides a mathematical description of much of the dual particle-like and wave-like behavior and interactions of energy and matter that occur at this scale.
quantum number
quantum physics
quantum state