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NEWTONS LAW (what do they do (A force causes an object to undergo a…
NEWTONS LAW
what do they do
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Unbalanced forces cause changes in speed, shape or direction.
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Facts along the way
The Thrust supersonic car (ThrustSSC) was the first car to break the sound barrier when it was driven at 763 miles per hour in 1997. It has huge thrust and is streamlined to minimise air resistance.
Isaac Newton was an English physicist and mathematician. He determined that gravity was a force that acts between two masses. The larger the masses, the larger the gravitational force between them.
Charles-Augustin de Coulomb was a French physicist. He first described the electrostatic force. This is a force that acts between two charges.
Laws of force
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Law 3. For every action, there is an equal and opposite reaction.
Examples:
when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air.
Friction, Weight, and Mass
When two surfaces slide past each other, the interaction between them produces a force of friction. Friction is a force that opposes motion.
Mass is a measure of how much matter is in an object. Weight is a force acting on that matter. Mass resists any change in the motion of objects.
the force that acts on a mass due to gravity. Weight is measured in newtons. Mass is measured in kilograms.
Types
A force is any influence that causes an object to undergo a specific change. Related concepts include:
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