Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Newtonian laws of motion


Related Topics

  
  Newton's laws of motion - Wikipedia, the free encyclopedia
The law of conservation of momentum, which Newton derived as a corollary of his second and third laws, was the first conservation law to be discovered.
Newton's first law appears to be a special case of the second law, and Newton may have stated the first law separately simply in order to throw down the gauntlet to the Aristotelians.
The laws of conservation of momentum, energy, and angular momentum are of more general validity than Newton's laws, since they apply to both light and matter, and to both classical and nonclassical physics.
en.wikipedia.org /wiki/Newton's_laws_of_motion   (1738 words)

  
 Theory of relativity - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-11-03)
Special relativity considers that observers in inertial reference frames which are in uniform motion relative to one another cannot perform any experiment to determine which one of them is in "absolute motion".
The laws of physics are the same for all observers in inertial frames.
General relativity is a geometrical theory which postulates that the presence of mass and energy "curves" spacetime, and this curvature affects the path of free particles (and even the path of light).
encyclopedia.worldsearch.com /theory_of_relativity.htm   (704 words)

  
 Newton's laws of motion   (Site not responding. Last check: 2007-11-03)
Newton's laws were verified by experiment and observation for over 200 years, until 1916, when they were superseded by Einstein's theory of relativity.
Newton's law indicates that some force (gravity) must be acting upon the planets, as they do not travel in a straight line.
It is often contended that Newton's third law is incorrect when electromagnetic forces are included: if a body A exerts a force on body B, then body B will in general exert a different force on body A (the force considered is the Lorentz force, generated by electric and magnetic fields).
www.sciencedaily.com /encyclopedia/newton_s_laws_of_motion_1   (906 words)

  
 Newton's Laws of Motion   (Site not responding. Last check: 2007-11-03)
The first of Newton's laws of motion states: An object moves in a straight line at the same speed unless acted upon by an external force.
The second of Newton's laws of motion states: The force applied to an object is equal to the mass of the object multiplied by the acceleration induced by the force.
Almost as important as Newton's laws of motion was Newton's universal law of gravitation.
www.321books.co.uk /encyclopedia/physics/newtonian-mechanics/newtons-laws-of-motion.htm   (481 words)

  
 Newton's Three Laws of Motion
Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector.
This law is exemplified by what happens if we step off a boat onto the bank of a lake: as we move in the direction of the shore, the boat tends to move in the opposite direction (leaving us facedown in the water, if we aren't careful!).
csep10.phys.utk.edu /astr161/lect/history/newton3laws.html   (367 words)

  
 Postmodern Deconstruction Of Newtonian Science:
A Physical-to-social Transposition Of Causality
This deconstruction of ‘Newtonian text,’ which demonstrates that the presumed causality of external forces in classical physics indeed is a social construct (as postmodern sociology claims all theory to be), refutes the presupposition of natural science about the objectivist foundations of modern scientific discourse.
For Newton’s third law of motion on action-reaction or reciprocal action then (which in SAC is an empirical manifestation of matter’s sentience), the physico-chemical forces and event causality of insentient objects, and the physico-social forces and agent causality of sentient actants are operationally equivalent in all systems.
The mathematical formulation of OEC (objectivist laws of motion), which is the logical foundation of physical causality as presently interpreted in classical physics and other sciences dependent thereon conceptually, establishes the necessary interpretative background for all mathematical accounts of reality by the sciences.
theoryandscience.icaap.org /content/vol002.001/05zaman.html   (9160 words)

  
 Kepler's Three Laws
Kepler's first law - sometimes referred to as the law of ellipses - explains that planets are orbiting the sun in a path described as an ellipse.
Kepler's first law is rather simple - all planets orbit the sun in a path which resembles an ellipse, with the sun being located at one of the foci of that ellipse.
Newton's comparison of the acceleration of the moon to the acceleration of object's on earth allowed him to establish that the moon is held in a circular orbit by the force of gravity - a force which is inversely dependent upon the distance between the two objects' centers.
www.glenbrook.k12.il.us /gbssci/phys/Class/circles/u6l4a.html   (1571 words)

  
 Admiralty Digital Products   (Site not responding. Last check: 2007-11-03)
Basic to the understanding of the tides are the Newtonian Laws of Motion and Gravity, first propounded in the seventeenth century.
Law 1 - A body at rest will remain at rest, and a body in motion will continue to move in a straight line with uniform velocity, forever - unless it be acted upon by some external force.
Law 3 - Every particle of matter in the universe attracts every other particle with a force directly proportional to their masses and inversely proportional to the square of the distance between them.
www.ukho.gov.uk /ttflash/webfiles/tidal1.htm   (246 words)

  
 Inertia   (Site not responding. Last check: 2007-11-03)
Isaac Newton adopted Galileo's principle as his first law of motion and set it within the wider context of what is known as Newtonian physics.
The loss of the ontological distinction between rest and motion leads to the concept of inertial frames which demand that observers in uniform (non-accelerating) motion all observe the same laws of physics.
Commonly, when people unschooled in Newtonian physics are asked to make predictions about certain sorts of motions involving inertia, their responses are more likely to reflect the theories of Aristotle than of Newton.
www.sciencedaily.com /encyclopedia/inertia   (1292 words)

  
 Newton's Laws of Motion
The second law states that the acceleration of a body is proportional to the force on it.
The second law goes on to state that the constant of proportionality between the force and the acceleration is the "mass" of the body.
As a first approach we can capture the motion by recording the ball's flight, plotting its trajectory so that we can see where it has been as well as where it is. That is the sort of display we saw in the Projectile Motion example.
www.mcasco.com /p1nlm.html   (2707 words)

  
 McGraw-Hill AccessScience: Sample Biography   (Site not responding. Last check: 2007-11-03)
Einstein also investigated Brownian motion and was able to explain it so that it not only confirmed the existence of atoms but could be used to determine their dimensions.
Einstein's explanation of Brownian motion and its subsequent experimental confirmation was one of the most important pieces of evidence for the hypothesis that matter is composed of atoms.
This idea of relative motion is central to relativity, and is one of the two postulates of the special theory, which considers uniform relative motion.
www.accessscience.com /Samples/Biography   (2213 words)

  
 Newton's Laws of Motion
Some twenty years later, in 1686, he presented his three laws of motion in the "Principia Mathematica Philosophiae Naturalis." The laws are shown above, and the application of these laws to aerodynamics are given on separate slides.
Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.
The third law can be used to explain the generation of lift by a wing and the production of thrust by a jet engine.
www.grc.nasa.gov /WWW/K-12/airplane/newton.html   (413 words)

  
 Galileo's Forgotten Leap
However, there is an almost universal confusion in the literature (at all levels) as to the necessary and sufficient conditions for the laws of mechanics to be satisfied with respect to a given system of coordinates.
Whittaker correctly notes that the first law is satisfied only in terms of certain special systems of space and time coordinates coordinates, namely, those that are not accelerating, but then he jumps to the assertion that the Newtonian laws (plural) of motion are valid with respect to these systems.
Sometimes these texts invoke the second law instead of the first, but they are used for the same purpose, i.e., simply to establish that the reference frame is unaccelerated.
www.mathpages.com /home/kmath386/kmath386.htm   (1164 words)

  
 July 1973   (Site not responding. Last check: 2007-11-03)
This takes for granted that "an optical motion is a projection in two dimensions of a physical motion in three dimensions" as I once put it.
Motions in space can be analyzed in terms of instantaneous velocity, acceleration, and even higher derivatives if necessary, by calculus, but these variables, however useful in physics, are not ones to which the phenomenal qualities of an event correspond.
It should not be called a "motion" as this term is used in physics for that leads to endless confusion about the relativity of motion.
www.trincoll.edu /depts/ecopsyc/perils/folder6/displacement.html   (515 words)

  
 National Interest, The: Quantum leap - parallelism between quantum mechanics and politics   (Site not responding. Last check: 2007-11-03)
Newtonian physics is human-scale physics, ideally suited to the manipulation of objects in our immediate physical world.
At the subatomic level, the laws of Newtonian physics are broken, or, it may be more accurate to say, transcended.
The theme of the Newtonian worldview was the subjugation and manipulation of matter and the physical environment - precisely the theme of mutual efforts at domination that characterized the international politics in the industrial age.
www.findarticles.com /p/articles/mi_m2751/is_n39/ai_16989248   (1269 words)

  
 mm...nice
The laws of motion are immediately thought of in terms of Force, Mass and Acceleration; position, velocity and rates-of-change...
Law 2. The change of momentum per unit time is proportional to the impressed force, and takes place in the direction of the straight line along which the force acts.
Thus, when we consider the "economic laws of motion" of society, we should keep firmly in mind the fact that we are essentially concerned with defining, or extending, a terminology with which we intend to make sense of economic phenomena.
digilander.libero.it /hobson/essays/mmnice.html   (13010 words)

  
 Newtonian Physics
3rd law (law of harmonics): The square of a planet's orbital period is proportional to its mean distance from the Sun cubed.
The 3rd law is used to develop a ``yardstick'' for the Solar System, expressing the distance to all the planets relative to Earth's orbit by just knowing their period (timing how long it takes for them to go around the Sun).
Newton went beyond his simple laws of motion and gravitation to develop a whole set of mathematics to describe and calculate orbits.
zebu.uoregon.edu /~js/21st_century_science/lectures/lec03.html   (2335 words)

  
 A Response to Common Questions Concerning the Article: "Postmodern Deconstruction Of Newtonian Science: A ...
Newtonian mechanics is underdetermined with regard to the origin of the forces it describes.
Newtonian mechanics, although this fact is downplayed in the university’s training of scientists (or perhaps sometimes outright denied), is composed of two components—one mathematical-empirical and the other metaphysical.
Relativity theory has overturned the metaphysics of Newtonian mechanics where the velocities of objects approach the speed of light or the acceleration forces of gravity become extreme; but Newtonian metaphysics remains firmly in place in the classical world of large objects where these conditions are not met.
theoryandscience.icaap.org /content/vol003.002/zaman.html   (4727 words)

  
 Modeling a gas explosion and the subsequent motion of a volume of dust
The dust particles are simply assigned an acceleration that is interpolated from the acceleration vector field, and the subsequent trajectories are described using newtonian laws of motion for a particle, and are solved using the Feynman algorithm.
For particles with speeds in the Newtonian regime, the Newtonian laws of mechanics are sufficient.
Although this would constitute a first-principles calculation of the motion of an object in a fluid flow, it is supreme over-kill for a simple dust particle.
www3.sympatico.ca /brianfp/topics/gas/doc.html   (2899 words)

  
 Newtonian Gravitation and the Laws of Kepler
Notice that (because of Kepler's 2nd Law) the velocity vector is constantly changing both its magnitude and its direction as it moves around the elliptical orbit (if the orbit were circular, the magnitude of the velocity would remain constant but the direction would change continuously).
From Kepler's 1st Law the orbit is an ellipse with the Sun at one focus; from Newton's laws it can be shown that this means that the magnitude of the force must vary as one over the square of the distance between the planet and the Sun.
Thus, Newton's laws of motion, with a gravitational force used in the 2nd Law, imply Kepler's Laws, and the planets obey the same laws of motion as objects on the surface of the Earth!
csep10.phys.utk.edu /astr161/lect/history/newtonkepler.html   (874 words)

  
 Newton’s laws of motion
In physics, three laws that form the basis of Newtonian mechanics, describing the motion of objects.
As an example, if a car is travelling at a certain speed in a certain direction, it will continue to travel at that speed in the same direction unless it is acted upon by an unbalanced force such as friction in the brake mechanism, which will slow down the car.
A person in the car will continue to move forward (in accordance with the first law) unless acted upon by a force;; for example, the restraining force of a seat belt.
www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0006042.html   (501 words)

  
 Introduction to Bohmian Mechanics
Newtonian, laws of motion, then on the photo plate simply two strips should appear as soon as both slits are open.
In contrast, in Newtonian mechanics the rate of change of the velocities is specified, that is the change of the change of the positions.
Analogously, the motion of the particle in the experiment is influenced by the superposition of the two partial waves, such that on the screen the typical wave pattern appears.
www.mathematik.uni-muenchen.de /~bohmmech/Poster/post/postE.html   (2345 words)

  
 Coriolis Effect   (Site not responding. Last check: 2007-11-03)
Coriolis showed that, if the ordinary Newtonian laws of motion of bodies are to be used in a rotating frame of reference, an inertial force--acting to the right of the direction of body motion for counterclockwise rotation of the reference frame or to the left for clockwise rotation--must be included in the equations of motion.
The Coriolis deflection is therefore related to the motion of the object, the motion of the Earth, and the latitude.
It is also significant in the earth sciences, especially meteorology, physical geology, and oceanography, in that the Earth is a rotating frame of reference, and motions over the surface of the Earth are subject to acceleration from the force indicated.
abyss.uoregon.edu /~js/glossary/coriolis_effect.html   (469 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.