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Topic: Newtons laws of motion


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In the News (Thu 18 Apr 19)

  
  Kids.Net.Au - Encyclopedia > Newtons Laws of Motion   (Site not responding. Last check: 2007-09-18)
The laws of motion (laws of inertia) are the three scientific laws which Isaac Newton described; regarding the motion of bodies.
Newton's laws were modified, in 1916, 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.
encyclopedia.kids.net.au /page/ne/Newtons_Laws_of_Motion   (442 words)

  
 Newtons Laws of Motion.
When Newton substituted this formula into Kepler's third law, he found that the centripetal force holding the planets in their given orbits about the Sun must decrease with the square of the planets' distance from the Sun.
Newton compared the distance by which the Moon, in its orbit of known size, is diverted from a tangential path in one second with the distance that a body at the surface of the Earth falls from rest in one second.
Newton, whose only close contacts with women were his unfulfilled relationship with his mother, who had seemed to abandon him, and his later guardianship of a niece, found satisfaction in the role of patron to the circle of young scientists.
myweb.tiscali.co.uk /newuniverse/newton_6.html   (549 words)

  
 Alchemy :: Physics : Newtons Laws Of Motion   (Site not responding. Last check: 2007-09-18)
Newton's laws of motion are the three scientific laws which Isaac Newton discovered concerning the behaviour of moving bodies.
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.
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.alchemy-education.com /Physics/LOM.html   (1050 words)

  
 ScienceMaster - JumpStart - Newton's Three Laws of Motion
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.
Newton also developed the calculus of mathematics, and the "changes" expressed in the second law are accurately defined in differential forms.
His second law defines a force to be equal to the differential change in momentum per unit time as described by the calculus of mathematics which Newton also developed.
www.sciencemaster.com /jump/physical/newton_law.php   (1195 words)

  
 Newton's Laws
Any change in motion involves an acceleration, and then Newton's Second Law applies; in fact, the First Law is just a special case of the Second Law for which the net external force is zero.
Newton's third law is one of the fundamental symmetry principles of the universe.
Newton's third law can be illustrated by identifying the pairs of forces which are involved in supporting the blocks on the spring scale.
hyperphysics.phy-astr.gsu.edu /hbase/newt.html   (669 words)

  
 Newton's laws of motion - Wikipedia, the free encyclopedia
Newton's Laws of Motion are three physical laws which provide relationships between the forces acting on a body and the motion of the body, first formulated by Sir Isaac Newton.
Inertia of motion was described in the third century BCE in the Mo Tzu, a collection of Chinese philosphical texts, and the 17th century philosopher René Descartes also formulated the law, although he did not perform any experiments to confirm it.
Newton's laws of motion, together with his law of universal gravitation and the mathematical techniques of calculus, provided for the first time a unified quantitative explanation for a wide range of physical phenomena.
en.wikipedia.org /wiki/Newton's_laws_of_motion   (2269 words)

  
 More on Motion
In physics, motion means a change in the position of a body with respect to time, as measured by a particular observer in a particular frame of reference.
Until the end of the 19th century, Newton's laws of motion, which he posited as axioms or postulates in his famous Principia, were the basis of what has since become known as classical physics.
Because motion is defined as the proportion of space to time, these concepts are prior to motion, just as the concept of motion itself is prior to force.
www.artilifes.com /motion.htm   (564 words)

  
 Newton's Three Laws of Motion   (Site not responding. Last check: 2007-09-18)
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)

  
 Isaac Newton.
Newtons laws of motion and much of the rest of his theory was chiefly put in Philosophiae Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy) published in 1687.
Newton was the chief proponent of behaviour laws and no-explanations 'fl box science', maybe chiefly because he could see no way to decide between the alternative Gilbert and Descartes physics explanations ('Newton's Dilemma') or between particle and wave explanations of light.
Newton did convince some other scientists of his time into favouring fl box science that could predict everything as not needing explanations, but explanation-theory retained its popularity among scientists and was even credited to Newton ironically.
www.new-science-theory.com /isaac-newton.html   (976 words)

  
 Newtons Laws   (Site not responding. Last check: 2007-09-18)
Isaac Newton discovered his laws of motion at the young age of 24 when he was living in the British country side away from Cambridge University to escape the plague of 1665-1667.
Alone in the country side and as young as you, Newton discovered three laws of physics which predict motion from the swinging of a pendulum to the motion of planets and galaxies.
Newtons second law introduces mass as a scaler which determines how much force is required to accelerate, to change the velocity of, a body.
www.pha.jhu.edu /~broholm/l7/node1.html   (608 words)

  
 Laws of Motion and Thermodynamics
A body continues in a state of rest, or in motion at constant speed in a straight line, except when this state is changed by forces acting on it.
The final law to be worked out was given the name of the zeroth law (bearing the number zero) because, although it was added as an afterthought, it belongs logically in front of the other three, which had by then already been given numbers.
All four laws are connected with the idea known as entropy, which is a measure of how much useful work can be extracted from a given system.
www.geocities.com /Axiom43/sciencelaws.html   (575 words)

  
 Newtons laws
The story of how a set of rules we call Newton's laws of motion came to exist in their present form is interesting as much for revealing some of the quirks and biases that Newton held as it relates the laws themselves.
Newton suggested that the relationship followed an inverse square rule; he agreed to send the proof to Halley.
Newton was instantly recognized for the genius that he was and eclipsed all of the other scientists of his time.
wshs.wtvl.k12.me.us /~physics361/mechanics/newtlaws.html   (431 words)

  
 Newton's Laws -- from Eric Weisstein's World of Physics
(Law of inertia): A body at rest remains at rest and a body in motion continues to move at a constant velocity unless acted upon by an external force.
This is known as the weak law of action and reaction.
Law of Inertia, Newton's First Law, Newton's Second Law, Newton's Third Law, Newton's Law for Fluids, Strong Law of Action and Reaction, Weak Law of Action and Reaction
scienceworld.wolfram.com /physics/NewtonsLaws.html   (132 words)

  
 Performance Indicators Level Three   (Site not responding. Last check: 2007-09-18)
11.06     Use data gathered in previous motion investigations to demonstrate that vertical acceleration due to gravity is unaffected by constant horizontal motion of an object.
Newton's Law of Universal Gravitation, which holds that all matter interacts via gravity, developed gradually over centuries.
Scientists assume that the Laws of Matter and Energy are the same in all parts of the Universe.
www.doe.state.de.us /dpiservices/desk_ref/Sci_Lev3_11.htm   (2175 words)

  
 Newton's Laws of Motion - Succeed in Physical Science
Newton's first law of motion is often called the Law of Inertia.
One example of this law is if you push against a door with a certain force, the door is also pushing with the same force against you.
Isaac Newton defined his three laws of motion, which are the Law of Inertia, the Law of Dynamics and the Law of Reciprocal Actions.
www.school-for-champions.com /science/motionlaws.htm   (1461 words)

  
 Untitled Document
1st Law of Motion: An object at rest will remain at rest and an object in motion will stay in motion (at a constant velocity) unless acted upon by an unbalanced force.
A bowling ball is rolled with a force of 15 N and accelerates at 3 m/sec/sec.
Newton's Law of Universal Gravitation: All objects in the universe attract due to the force of gravity.
eev2.liu.edu /cwp2005/lwi/lawsofmotion.htm   (444 words)

  
 Newton's Three Laws of Motion
Soon he was coming up with theories of his own, and today Sir Isaac Newton is well known for his three laws of motion as well as for other scientific breakthroughs.
The change in motion depends on the amount of force and the mass of the object.
Sir Isaac Newton's only discovery was the three laws of motion.
www.edhelper.com /ReadingComprehension_27_20.html   (363 words)

  
 The Car and The Wall   (Site not responding. Last check: 2007-09-18)
According to Newton's first law, an object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
In fact, the tendency of moving objects to continue in motion is a common cause of a variety of transportation accidents - of both small and large magnitudes.
What motion would the passengers undergo if they failed to use their seat belts and the car were brought to a sudden and abrupt halt by a collision with a wall?
www.glenbrook.k12.il.us /gbssci/phys/mmedia/newtlaws/cci.html   (481 words)

  
 Newton's laws of motion #1
His laws of motion explain rest, constant motion, accelerated motion, and describe how balanced and unbalanced forces act to cause these states of motion.
Newton's first law of motion says that an object in motion will stay in motion and an object at rest will stay at rest unless acted on by an unbalanced force.
In the car your body was in motion, traveling at the same speed as the car.
www.usoe.k12.ut.us /curr/science/sciber00/8th/forces/sciber/newtons.htm   (313 words)

  
 AstroCamp - Laws of Motion   (Site not responding. Last check: 2007-09-18)
The first law was: An object at rest stays at rest and an object in motion stays in motion unless acted upon by an outside force.
The third law was: Every action has an equal and opposite reaction.
After everybody rode on the gyroscope machine, we went on Newton's chair and I went around and around, which gave me a funny feeling in the stomach.
www.vinadanks.us /gyro.html   (176 words)

  
 Frequently Asked Questions About General Physics
His three laws of motion would be the ticket: (1) Any object not acted upon by a force will continue to follow its current motion (either stay still, or continue to move in a straight line with constant speed).
Now, this is not a simple question to answer in terms of Newton's laws.
Newton can say that the player's weight will imply that the player will not be accelerated much by the force from the ball at the shot, but does that really matter when it comes to *making baskets consistently*?
www.phys.vt.edu /~jhs/faq/physics.html   (2408 words)

  
 Newton's Laws of Motion   (Site not responding. Last check: 2007-09-18)
The study of rigid body mechanics is formulated on the basis of Newtons three laws of motion.
A particle originally at rest, or moving in a straight line with constant velocity, will remain in that state provided that the particle is not subjected to an unbalanced force.
The mutual forces of action and reaction between two particles are equal in magnitude, opposite in direction, and collinear.
web.umr.edu /~oci/Topic1/T1-2/cml1-2a1.html   (97 words)

  
 The Dynamics of Judo & Newton's Three Laws of Motion
Newton states in the second law of motion that when a force acts
These phenomena are all due to the second law of motion.
The third law of motion is called the law of reaction.
www.ponyball.net /newton-law-judo.html   (766 words)

  
 ClickATutor Tutorials
Dynamics is the relationship between motion and the forces which cause motion.
When there is no motion, the system is said to be in equilibrium.
In this module we will apply Newton's laws to analyze the conditions required for a static equilibrium.
www.clickatutor.com /BasePUB.asp?pid=3258   (131 words)

  
 [No title]   (Site not responding. Last check: 2007-09-18)
Newtons laws of motion (formal, abstract) can be used to put a person on ]the moon (specific situation).
Hence, are Newtons laws of motion an instance of ]concrete or formal thinking?
I, too, am reading Papert's book, and I think that if you just study the laws as abstractions (applying to point masses) then they are "formal".
www.cs.uml.edu /~fredm/cher/logo/comp.lang.logo/1141   (397 words)

  
 Newtons Laws of Motion
Using both Newton's second and third laws of motion it became apparent, that not only could we change existing belief, but we might also show the event accurate: Although it will be a painstaking search, but more scientific than any SETI project, for both science and ufology.
I assumed with Newton's laws, if one star increased its volume of mass, a point of force, central to both bodies would need to find a new location in the night sky.
This opportunity, under the existing laws of physics is not only unlikely, it isn't feasibly possible.
members.madasafish.com /~newtheories/The_Constant_1.html   (751 words)

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