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  2. Moment (physics) - Wikipedia

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

    The moment of force, or torque, is a first moment: =, or, more generally, .; Similarly, angular momentum is the 1st moment of momentum: =.Momentum itself is not a moment.; The electric dipole moment is also a 1st moment: = for two opposite point charges or () for a distributed charge with charge density ().

  3. Branches of science - Wikipedia

    en.wikipedia.org/wiki/Branches_of_science

    Biochemistry, or biological chemistry, is the study of chemical processes within and relating to living organisms. [32] It is a sub-discipline of both biology and chemistry, and from a reductionist point of view it is fundamental in biology.

  4. Glossary of physics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_physics

    A branch of physics that studies the physical properties of molecules and the chemical bonds between atoms as well as their molecular dynamics. It is closely related to atomic physics and overlaps greatly with theoretical chemistry, physical chemistry and chemical physics. moment moment of inertia

  5. Glossary of chemistry terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemistry_terms

    Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...

  6. Dipole - Wikipedia

    en.wikipedia.org/wiki/Dipole

    An example in organic chemistry of the role of geometry in determining dipole moment is the cis and trans isomers of 1,2-dichloroethene. In the cis isomer the two polar C−Cl bonds are on the same side of the C=C double bond and the molecular dipole moment is 1.90 D.

  7. Biophysics - Wikipedia

    en.wikipedia.org/wiki/Biophysics

    While some colleges and universities have dedicated departments of biophysics, usually at the graduate level, many do not have university-level biophysics departments, instead having groups in related departments such as biochemistry, cell biology, chemistry, computer science, engineering, mathematics, medicine, molecular biology, neuroscience ...

  8. Electron - Wikipedia

    en.wikipedia.org/wiki/Electron

    The magnetic moment of the electron was measured to a precision of eleven digits, which, in 1980, was a greater accuracy than for any other physical constant. [ 170 ] The first video images of an electron's energy distribution were captured by a team at Lund University in Sweden, February 2008.

  9. Moment - Wikipedia

    en.wikipedia.org/wiki/Moment

    Moment (mathematics), a concept in probability theory and statistics Moment (physics) , a combination of a physical quantity and a distance Moment of force or torque