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  2. List of common physics notations - Wikipedia

    en.wikipedia.org/wiki/List_of_common_physics...

    Symbol Meaning SI unit of measure magnetic vector potential: tesla meter (T⋅m) : area: square meter (m 2) : amplitude: meter: atomic mass number: unitless acceleration: meter per second squared (m/s 2)

  3. Joule - Wikipedia

    en.wikipedia.org/wiki/Joule

    This is the definition declared in the modern International System of Units in 1960. [ 13 ] The definition of the joule as J = kg⋅m 2 ⋅s −2 has remained unchanged since 1946, but the joule as a derived unit has inherited changes in the definitions of the second (in 1960 and 1967), the metre (in 1983) and the kilogram ( in 2019 ).

  4. Impulse (physics) - Wikipedia

    en.wikipedia.org/wiki/Impulse_(physics)

    Impulse J produced from time t 1 to t 2 is defined to be [3] = ... this is a useful model for computing the effects of ideal collisions (such as in videogame physics ...

  5. Term symbol - Wikipedia

    en.wikipedia.org/wiki/Term_symbol

    In atomic physics, a term symbol is an abbreviated description of the total spin and orbital angular momentum quantum numbers of the electrons in a multi-electron atom.So while the word symbol suggests otherwise, it represents an actual value of a physical quantity.

  6. Greek letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Greek_letters_used_in...

    a symbol for psychology; the wave function in the Schrödinger equation of quantum mechanics; represents: the J/psi mesons in particle physics; the stream function in fluid dynamics; the reciprocal Fibonacci constant [25] the second Chebyshev function in number theory [26] the polygamma function in mathematics [27] the supergolden ratio [28]

  7. Units of energy - Wikipedia

    en.wikipedia.org/wiki/Units_of_energy

    The British imperial units and U.S. customary units for both energy and work include the foot-pound force (1.3558 J), the British thermal unit (BTU) which has various values in the region of 1055 J, the horsepower-hour (2.6845 MJ), and the gasoline gallon equivalent (about 120 MJ). Log-base-10 of the ratios between various measures of energy

  8. Jerk (physics) - Wikipedia

    en.wikipedia.org/wiki/Jerk_(physics)

    Jerk (physics) 42 languages. ... As a vector, jerk j can be expressed as the first time derivative of acceleration, second time derivative of velocity, ...

  9. Feynman diagram - Wikipedia

    en.wikipedia.org/wiki/Feynman_diagram

    where A is an antisymmetric matrix, ψ is a collection of Grassmann variables, and the ⁠ 1 / 2 ⁠ is to prevent double-counting (since ψ i ψ j = −ψ j ψ i). In matrix notation, where ψ and η are Grassmann-valued row vectors, η and ψ are Grassmann-valued column vectors, and M is a real-valued matrix: