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  • In [[physics]] a [[free particle]] is one whose motion is unaffected by any external factors. That is, no net [[force]] is acting on the particle.
    4 KB (711 words) - 14:31, 26 March 2011
  • A particle not subject to forces, for example, in a 'field-free' space.
    108 B (15 words) - 14:27, 26 March 2011
  • 12 B (1 word) - 18:20, 26 September 2007
  • Auto-populated based on [[Special:WhatLinksHere/Free particle]]. Needs checking by a human. {{r|Particle in a box}}
    635 B (85 words) - 14:22, 26 March 2011

Page text matches

  • In [[physics]] a [[free particle]] is one whose motion is unaffected by any external factors. That is, no net [[force]] is acting on the particle.
    4 KB (711 words) - 14:31, 26 March 2011
  • ...tween the walls at <math>x=0</math> and <math>x=L</math>. Classically the particle is allowed to have any non-negative value for its kinetic energy, includin The '''particle in a box''' or '''infinite square well''' problem is one of the simplest n
    16 KB (2,810 words) - 16:31, 5 April 2011
  • ...molecular physics]], [[computational chemistry]], [[quantum chemistry]], [[particle physics]], and [[nuclear physics]]. ...gy]] of an [[atom]] at rest. The discovery that waves could be measured in particle-like small packets of energy called [[quanta]] led to the branch of physic
    37 KB (5,578 words) - 08:00, 7 August 2011
  • ...ty, the square of whose amplitude is equal to the probability of finding a particle at position ''x'' and time ''t''. But what is the form of Schrödinger's e We start by assuming that a beam of particles, like a beam of light, will have a wavefunction of the form
    17 KB (2,678 words) - 15:12, 9 May 2011
  • ...pecific kind of [[quantum field theory]] which supposes that [[fundamental particle]]s or [[hadron]]s (such as [[proton]]s and [[neutron]]s) are made up of [[ ...distinguished; red, green and blue. The colour charge of a quark's [[anti-particle]] partner is called anti-red, anti-green or anti-blue.
    1 KB (209 words) - 21:58, 5 March 2012
  • ...mechanics]]. Let us assume that a [[force]] ''F''(''x'') is acting on the particle. As an example one may think here of a mass in the gravitational field of ...e physical system that will be considered is the simplest one possible: a particle of mass ''m'' in a one-dimensional space with a force field ''F''(''x'').
    43 KB (7,032 words) - 00:15, 14 June 2010
  • ...ics]], the '''momentum''' of a point particle is the [[mass]] ''m'' of the particle times its [[velocity]] '''v'''. Conventionally, momentum is indicated by t [[Isaac Newton|Newton]]'s second law states that the momentum of a particle changes in time when a force '''F''' acts on it,
    8 KB (1,395 words) - 07:07, 1 September 2009
  • {{r|Free particle}}
    514 B (66 words) - 02:37, 12 January 2010
  • ...omic number]], such as [[beryllium]] or [[hydrogen]]) restrict the flow of particles (e.g., [[neutron]]s) while high-Z materials (e.g., [[lead]], [[uranium]])
    409 B (62 words) - 21:30, 11 May 2010
  • between particle ''i'' and ''j''. ...expression '''r'''<sub>''i''</sub> stands for the coordinate vector of any particle (electron or nucleus). But from here on we will reserve capital '''R''' to
    31 KB (4,757 words) - 07:20, 27 October 2013
  • {{r|Free particle}}
    737 B (91 words) - 19:24, 26 September 2011
  • ...e that normally is part of the [[nucleus]] of a [[chemical element]]. When free (not bound to a nucleus), a neutron can have important physical, chemical, ...out/what_is_ir/en/index.html}}</ref> effects. Free neutrons are not stable particles, but undergo radioactive decay with a half-life of approximately 10 minut
    9 KB (1,298 words) - 02:46, 22 July 2020
  • ...sed of particles that have a non-zero size and a pairwise attractive inter-particle [[force]] (such as the [[van der Waals force]]). It was derived by [[Joha Consider a vessel of volume ''V'' filled with ''n'' [[mole (unit)|moles]] of particles (atoms or molecules) of a single compound. Let the pressure be ''p'' and
    18 KB (2,967 words) - 21:43, 23 September 2013
  • ...sed of particles that have a non-zero size and a pairwise attractive inter-particle [[force]] (such as the [[van der Waals force]].) It was derived by [[Johan Consider a vessel of volume ''V'' filled with ''n'' [[mole (unit)|moles]] of particles (atoms or molecules) of a single compound. Let the pressure be ''p'' and
    16 KB (2,711 words) - 21:42, 23 September 2013
  • * [[User:Michael Underwood|Michael Underwood]] created a [[free particle]] and proved [[Euclid's lemma]].
    7 KB (1,101 words) - 14:13, 6 April 2015
  • Except for problems associated with scattering of (nearly) free particles, it is common in physics not to consider the domain or range of the adjo
    8 KB (1,273 words) - 16:29, 9 July 2009
  • ...e Latin mole, a mass), for the smallest particle that normally exists in a free state<ref>J. N. Murrell, ''Avogadro and His Constant'', Helvetica Chimica
    4 KB (605 words) - 06:29, 7 February 2010
  • ...perature is lowered to absolute zero, helium remains a liquid, rather than freezing to a solid, owing to the irremovable zero-point energy of its atomic mo ...ific]] devices, often called [[Zero-point_energy#.22Free_energy.22_devices|free energy device]]s, exploiting the idea, have been proposed. As a result of t
    16 KB (2,523 words) - 20:46, 7 October 2011
  • ...s or molecules by loss or gain of one or more electrons leading to charged particles. [[Salt]]s are composed of [[ion|cations]] (positively charged ions) and ...ves anomalously, as its largest density as a fluid is at 4 ˚C, not at its freezing point. Increasing the energy [[heat of fusion]] will melt the ice altho
    22 KB (3,148 words) - 18:05, 24 August 2013
  • ...molecules by loss or gain of one or more [[electron]]s leading to charged particles. [[Salt]]s are composed of [[ion|cations]] (positively charged ions) and ...largest [[Density (chemistry)|density]] as a fluid is at 4 ˚C, not at its freezing point. Increasing the energy [[heat of fusion]] will melt the ice altho
    23 KB (3,320 words) - 03:17, 30 October 2020

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