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Classical mechanics — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Classical_mechanics
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-06T16:42:08.080Z
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Classical mechanics — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Classical_mechanics (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_3da360f559df (Metraipolis archive dc_3da360f559df, sha256 36edca0504d607882ed7a585e1736c7ce20e2a1d76757d6ae9990eca206d0060)

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@misc{dc3da360f559df,
  title = {Classical mechanics — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Classical_mechanics},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_3da360f559df; sha256 36edca0504d607882ed7a585e1736c7ce20e2a1d76757d6ae9990eca206d0060},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Classical_mechanics. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

In physics, classical mechanics is a theory that describes the effect of forces on the motion of macroscopic objects and bulk matter, without considering quantum effects, and often without incorporating relativistic effects either. It is used in describing the motion of objects such as projectiles and particles, parts of machinery, spacecraft, planets, stars, galaxies, deformable solids, fluids, macromolecules and other objects. The development of classical mechanics involved substantial change in the methods and philosophy of physics. The qualifier classical distinguishes this type of mechanics from new methods developed after the revolutions in physics of the early 20th century which revealed limitations in classical mechanics. Some modern sources include relativistic mechanics in classical mechanics, as representing the subject matter in its most developed and accurate form. The earliest formulation of classical mechanics is often referred to as Newtonian mechanics. It consists of the physical concepts based on the 17th century foundational works of Sir Isaac Newton, and the mathematical methods invented by Newton, Gottfried Wilhelm Leibniz, Leonhard Euler and others to describe the motion of bodies under the influence of forces. Later, methods based on energy were developed by Euler, Joseph-Louis Lagrange, William Rowan Hamilton and others, leading to the development of analytical mechanics (which includes Lagrangian mechanics and Hamiltonian mechanics). These advances, made predominantly in the 18th and 19th centuries, extended beyond earlier works; they are, with some modification, used in all areas of modern physics. If the present state of an object that obeys the laws of classical mechanics is known, it is possible to determine how it will move in the future, and how it has moved in the past. Chaos theory shows that the long term predictions of classical mechanics are not reliable. Classical mechanics provides accurate results when studying objects that are not extremely massive and have speeds not approaching the speed of light. With objects about the size of an atom's diameter, it becomes necessary to use quantum mechanics. To describe velocities approaching the speed of light, special relativity is needed. In cases where objects become extremely massive, general relativity becomes applicable.

Tema degli esploratori: fisica e astronomia (deposito sistematico; ricerca «statistical mechanics»).
Fonte: Wikipedia in inglese, voce «Classical mechanics» — https://en.wikipedia.org/wiki/Classical_mechanics
Wikidata Q11397 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q11397
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Classical_mechanics?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1378366491, consultata il 2026-10-06T15:18:37.068Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 25279289d8f06cbacd079035779a851829408158bccc74f04f4f3446803a37ad