Newton's Three Laws of Motion

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by 13avang
Last updated 6 years ago

Discipline:
Science
Subject:
Physics
Grade:
8

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Newton's Three Laws of Motion

Newton's 1st Law

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Newton's 3 Laws of Motion

For every action there is an equal and opposite reaction.

This means that there is a natural tendency of objects to keep on doing what they're doing. All objects resist changes in their state of motion. In the absence of an unbalanced force, an object in motion will maintain this state of motion.This picture shows Newton's first law of motion because the skating test tube is going at a rate but then an external force is being applied. Thus, stopping the skating test tube and causing it to fall.

Everyone unconsciously knows the Second Law. Everyone knows that heavier objects require more force to move the same distance as lighter objects.This picture shows a man pushing a car that is 1,000 kg. This represents Newton's second law because if you take the mass of an object and multiply it by its speed, then you will find your net force.

Newton's 2nd Law

Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

Newton's 3rd Law

This means that for every force there is a reaction force that is equal in size, but opposite in direction. That is to say that whenever an object pushes another object it gets pushed back in the opposite direction equally hard.This picture explains Newton's third law because the seesaw goes up and down depending on how you look at. This shows that the action of going up, forces the opposite end to go down and so on.


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