# Newton's laws of motion

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Related to Newton's laws of motion: Newton's first law of motion

## Newton's laws of motion

pl.n.
The three laws proposed by Isaac Newton to describe the motion of a body upon which forces may act and which may exert forces on other bodies, used as the basis of classical mechanics.

[After Isaac Newton.]

## Newton's laws of motion

pl n
(General Physics) three laws of mechanics describing the motion of a body. The first law states that a body remains at rest or in uniform motion in a straight line unless acted upon by a force. The second law states that a body's rate of change of momentum is proportional to the force causing it. The third law states that when a force acts on a body due to another body, then an equal and opposite force acts simultaneously on that body
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## Newton's laws of motion

The three laws proposed by Sir Isaac Newton to define the concept of force and describe motion, used as the basis of classical mechanics. The first law states that a body at rest tends to stay at rest, and a body in motion tends to stay in motion at a constant speed in a straight line, unless acted upon by a force. The second law states that the acceleration of a body is equal to the force acting upon it divided by the body's mass. The third law states that for every action there is an equal and opposite reaction.
References in periodicals archive ?
Action and reaction, one of Isaac Newton's Laws of Motion teaches us, are equal and opposite.
Resultantly, nearly every school child is exposed to Sir Isaac Newton's Laws of Motion. Traditionally, this knowledge base is transmitted in isolated science and math lectures that students receive passively and then must reproduce at assessment time.
The curriculum included Newton's laws of motion, the properties of air and of waves, and structural engineering, all explored using basic supplies and materials, such as 2-liter bottles, PVC pipe, drinking straws, and tape.
29 July--Interactions: Making sense of Newton's laws of motion
Friction, inertia, thrust, gravity and Newton's Laws of Motion are covered and the experiments are well designed.
Newton's laws of motion were modified when Einstein discovered relativity.
It created a link between Newton's laws of motion and Einstein's Theory of Relativity.
Not until the 17th century, with work by such towering figures as Galileo and Kepler, culminating in Newton's laws of motion and gravitation, did science in the modern --and powerful--sense arrive.
This volume links the physical science concepts of motion, forces, Newton's Laws of Motion, and simple machines to skateboarding and bicycle motorcross (BMX) to engage middle-grade students in the exploration of science from a real-world perspective.
THE USUAL list of humanity's great steps features fire, agriculture, writing and Newton's laws of motion. Other popular candidates are metalworking, reasoning, double-entry bookkeeping, relativity and electronic communications.
As it turns out, all of Isaac Newton's laws of motion apply to human behavior--and especially to leading change.
Or the best way to learn Newton's laws of motion is to actually build a rocket and do the testing".

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