Classical Mechanics

(redirected from Newtonian physics)
Also found in: Dictionary, Thesaurus.
Related to Newtonian physics: Newtonian mechanics, Newtonian fluid

Classical mechanics

The science dealing with the description of the positions of objects in space under the action of forces as a function of time. Some of the laws of mechanics were recognized at least as early as the time of Archimedes (287–212 b.c. ). In 1638, Galileo stated some of the fundamental concepts of mechanics, and in 1687, Isaac Newton published his Principia, which presents the basic laws of motion, the law of gravitation, the theory of tides, and the theory of the solar system. This monumental work and the writings of J. D'Alembert, J. L. Lagrange, P. S. Laplace, and others in the eighteenth century are recognized as classic works in the field of mechanics. Jointly they serve as the base of the broad field of study known as classical mechanics, or Newtonian mechanics. This field does not encompass the more recent developments in mechanics, such as statistical, relativistic, or quantum mechanics.

In the broad sense, classical mechanics includes the study of motions of gases, liquids, and solids, but more commonly it is taken to refer only to solids. In the restricted reference to solids, classical mechanics is subdivided into statics, kinematics, and dynamics. Statics considers the action of forces that produce equilibrium or rest; kinematics deals with the description of motion without concern for the causes of motion; and dynamics involves the study of the motions of bodies under the actions of forces upon them. For some of the more important areas of classical mechanics See Ballistics, Collision (physics), Dynamics, Energy, Force, Gravitation, Kinematics, Lagrange's equations, Mass, Motion, Rigid-body dynamics, Statics, Work

Classical Mechanics


mechanics based on Newton’s laws of mechanics, dealing with the motion of macroscopic material bodies at speeds that are low in comparison with the velocity of light. The motion of particles at speeds of the order of the velocity of light is studied in the theory of relativity, and motion of microscopic particles is studied in quantum mechanics.

classical mechanics

[′klas·ə·kəl mə′kan·iks]
Mechanics based on Newton's laws of motion.
References in periodicals archive ?
Newtonian physics forces theology to attribute to the movement of God in creation a particular place and time, or else to locate God completely outside the cosmic system.
Just as Newtonian physics was partially discarded when it was found to be inconsistent with the reality of the external world, the theories of today may be falsified and modified in future to pave the way for a true theory of everything - if such a theory is actually possible.
Quantum theory actually explains in exact mathematical language how Newtonian physics works at the margins of reality where the things we are studying (electrons) are nearly as small as the things we must use to study them (light waves).
Without it, we would have no time-binded model of Newtonian physics [right arrow] no theory of relativity (Einstein) [right arrow] no De Sitter cosmology, Schrodinger/Heisenberg quantum mechanics, general semantics (Korzyb ski), neurolinguistics, transactional psychology, etc.
covers Newtonian physics in a space design unit, solar energy in a unit about solar-powered cars, and speed and aerodynamics in a unit about maglev transit systems (high-speed surface transport vehicles).
Although everyone "knows" that science must be publicly funded, everyone also knows that nearly all the great leaps of classical science - Newtonian physics, relativity, atomic theory, thermodynamics, electromagnetism, genetics, and many others - occurred with no government aid whatever.
Newtonian physics had replaced Aristotelian physics, and Smith belonged to the new group of thinkers who opposed Aristotle and the Greeks whenever their doctrines were inconsistent with "science.
For example, Newtonian physics once dominated the study of the physical world.
They believe that the biological conceptions of evolution are closer to the heart of how economic variables change than are metaphors from Newtonian Physics popular in current orthodoxy.
This reorganization of information and communications technology (ICT) and markets is as profound as the transition from Newtonian physics to the world of relativity and quantum mechanics.
This well-established title includes new touch-enabled capabilities and a customizable spaceship mode, allowing the user to navigate all around the galaxy with Newtonian physics for the space flight.
Anyone who agrees that Newtonian physics and general relativity are both metaphysically possible must say that the relevant possibility is stronger than metaphysical--in a Newtonian world, it is metaphysically possible for the world to be globally hyperbolic (since there is a metaphysically possible general-relativistic world where it is), but in the sense of "possible" relevant to the modal relationalist, it is not possible relative to a Newtonian world for matter to be arranged in a globally hyperbolic way.