# Issac Newton Essay

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ISAAC NEWTON

I

Isaac Newton was a famous scientist and mathematician.
Isaac Newton was born on 4 January 1643 in Woolsthorpe, Lincolnshire. His father was a prosperous farmer, who died three months before Newton was born. His mother remarried and Newton was left in the care of his grandparents. In 1661, he went to Cambridge University where he became interested in mathematics, optics, physics and astronomy. In October 1665, a plauge epidemic forced the university to close and Newton returned to Woolsthorpe. The two years he spent there were an extremely fruitful time during which he began to think about gravity. He also devoted time to optics and mathematics, working out his ideas about 'fluxions'
He was the first person to work out why things fall to the ground.   He realised this was due to gravity.   There is a story about how he worked this out after he was sitting underneath an apple tree and an apple fell on his head.   This story is probably not true but it does help explain how he worked out gravity.
Gravity is the force that pulls one object to another.   In the case of the famous story about him a big object (called the Earth) pulled a little object (called an apple) towards the big object.   Which is why the fell towards   the ground and hit him on the head on the way.
They did not know the word gravity at the time so he was thinking then he thought about two things if something is at rest it will need a force to move. The second thing he was thinking was every action had a reaction.

As well as the apple story Isaac Newton was best known for his 3 laws of motion
1. The first law is if a object is at rest it needs a external force to make it move.   For a ball to move it needs an external force to hit it like a kick or the wind.   For an apple to fall from a tree it needs an external force called gravity
2. This law means the stronger and the more force you hit something with the faster it will go.
3. This law means whatever you do...

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