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  2. Particle - Wikipedia

    en.wikipedia.org/wiki/Particle

    Arc welders need to protect themselves from welding sparks, which are heated metal particles that fly off the welding surface.. In the physical sciences, a particle (or corpuscule in older texts) is a small localized object which can be described by several physical or chemical properties, such as volume, density, or mass.

  3. Elementary particle - Wikipedia

    en.wikipedia.org/wiki/Elementary_particle

    In particle physics, an elementary particle or fundamental particle is a subatomic particle that is not composed of other particles. [1] The Standard Model presently recognizes seventeen distinct particles—twelve fermions and five bosons.

  4. Particle physics - Wikipedia

    en.wikipedia.org/wiki/Particle_physics

    Particle physics or high-energy physics is the study of fundamental particles and forces that constitute matter and radiation.The field also studies combinations of elementary particles up to the scale of protons and neutrons, while the study of combination of protons and neutrons is called nuclear physics.

  5. Standard Model - Wikipedia

    en.wikipedia.org/wiki/Standard_Model

    Y W is the weak hypercharge – the generator of the U(1) group, W → μ is the 3-component SU(2) gauge field, L are the Pauli matrices – infinitesimal generators of the SU(2) group – with subscript L to indicate that they only act on left-chiral fermions, g' and g are the U(1) and SU(2) coupling constants respectively,

  6. Particulates - Wikipedia

    en.wikipedia.org/wiki/Particulates

    Particulates or atmospheric particulate matter (see below for other names) are microscopic particles of solid or liquid matter suspended in the air.The term aerosol refers to the particulate/air mixture, as opposed to the particulate matter alone, [1] though it is sometimes defined as a subset of aerosol terminology. [2]

  7. Física o Química - Wikipedia

    en.wikipedia.org/wiki/Física_o_Química

    "Física o química" by Despistaos (seasons 2–4) "Física o química" by El Sueño de Morfeo (season 5) "Física o química" by Angy Fernández (season 6) "Física o química" by Despistaos (season 7) Composers: Joaquín Peña Julio de la Rosa: Country of origin: Spain: Original language: Spanish: No. of seasons: 7: No. of episodes: 77 (list ...

  8. Charged particle - Wikipedia

    en.wikipedia.org/wiki/Charged_particle

    In physics, a charged particle is a particle with an electric charge.For example, some elementary particles, like the electron or quarks are charged. [1] Some composite particles like protons are charged particles.

  9. Free particle - Wikipedia

    en.wikipedia.org/wiki/Free_particle

    In physics, a free particle is a particle that, in some sense, is not bound by an external force, or equivalently not in a region where its potential energy varies. In classical physics, this means the particle is present in a "field-free" space.