Newton's three laws of motion are summarized as follows:
1) An object at rest stays at rest or an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced external force. This is known as the first law of motion.
2) The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the direction of the net force. This is known as the second law of motion.
3) For every action, there is an equal and opposite reaction. This is known as the third law of motion.
My interpretation of physical law of force with Life. The physical law of force has actually revive the secret how we handle our life. The 1st Law actually tells us not stay in "inertia" for too long. Change your view to do something impactful as revive in the 2nd Law of motion. And for every action, there is an opposite reaction as stated in the 3rd law. The law of gravitation is actually the law of attraction. In the universe, we attract what we believe in. So better be careful what we want in life. Of course, there is a saying, "Attitude determines Altitude" as proven mathematically in the Conservation of Energy. Last but not least, Energy as the Self-Motivation that creates the Power to achieve your desirables in life. So let's set the Motion and control the Emotion.
Force
A push or pull on a body is called force.
Forces are used in our everyday actions like pushing, pulling, lifting, strecHing, twisting and pressing.
Effects of Force
A force cannot be seen. A force can be judged only by the effects which it can produce in various bodies (or objects) around us.
1. A force can move a stationary body.
2. A force can stop a moving body.
3. A force can change the speed of a moving body.
4. A force can change the direction of a moving body.
5. A force can change the shape and size of a body.
My interpretation of physical law of force with Life. The physical law of force has actually revive the secret how we handle our life. The 1st Law actually tells us not stay in "inertia" for too long. Change your view to do something impactful as revive in the 2nd Law of motion. And for every action, there is an opposite reaction as stated in the 3rd law. The law of gravitation is actually the law of attraction. In the universe, we attract what we believe in. So better be careful what we want in life. Of course, there is a saying, "Attitude determines Altitude" as proven mathematically in the Conservation of Energy. Last but not least, Energy as the Self-Motivation that creates the Power to achieve your desirables in life. So let's set the Motion and control the Emotion.
Force
A push or pull on a body is called force.
Forces are used in our everyday actions like pushing, pulling, lifting, strecHing, twisting and pressing.
Effects of Force
A force cannot be seen. A force can be judged only by the effects which it can produce in various bodies (or objects) around us.
1. A force can move a stationary body.
2. A force can stop a moving body.
3. A force can change the speed of a moving body.
4. A force can change the direction of a moving body.
5. A force can change the shape and size of a body.
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Pedagogy of Physical Science (Part II) - Laws of motion, Laws of Motion, Science, X std Science Samacheerkalvi Science, II year B.Ed., Pedagogy, Physics, X chapter I
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This presentation was uploaded with the author’s consent.
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1. NEWTON’S LAWSNEWTON’S LAWS
OF MOTIONOF MOTION
NIMISHA S.NIMISHA S.
Physical SciencePhysical Science
Reg No. 18214304010Reg No. 18214304010
N.S.S TRAINING COLLEGE
PANDALAM
2014-2015
2. Everybody continues in its state of restEverybody continues in its state of rest
or of uniform motion along a straight lineor of uniform motion along a straight line
until it is acted up on by an externaluntil it is acted up on by an external
unbalanced force.unbalanced force.
FIRST LAW OF MOTION
3. DEFINITION FOR INERTIAANDDEFINITION FOR INERTIAAND
FORCE FROM THE FIRST LAWFORCE FROM THE FIRST LAW
Inertia is the tendency of a body toInertia is the tendency of a body to
continue in its state of rest or the state ofcontinue in its state of rest or the state of
uniform motion along a straight line.uniform motion along a straight line.
INERTIA
4. The rate of change of momentum of aThe rate of change of momentum of a
body is directly proportional to thebody is directly proportional to the
unbalanced external force acting of theunbalanced external force acting of the
body and it takes place in the direction 0fbody and it takes place in the direction 0f
the force.the force.
SECOND LAW OF MOTION
5. The rate of change of momentum isThe rate of change of momentum is
m(v-u)m(v-u)
tt
If F is the unbalanced forceIf F is the unbalanced force
FF αα m (v-u)m (v-u)
tt
F = K m (v-u) ; K is a constantF = K m (v-u) ; K is a constant
tt
Since v-u = a ; the accelerationSince v-u = a ; the acceleration
tt
∴∴F = maF = ma
The unit of force is kgm/sThe unit of force is kgm/s22
or Newton (N)or Newton (N)
The Equation for force from
Second Law
6. Every action has an equalEvery action has an equal
and opposite reaction.and opposite reaction.
THIRD LAW OF MOTION
7. Every action has an equalEvery action has an equal
and opposite reaction.and opposite reaction.
THIRD LAW OF MOTION
