The Contributions of Isaac Newton

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With all the things that Isaac Newton did some of his most renowned works was with that of gravitation. Newton was one of the foremost scientific intellects so fall time. Newton is also considered one of, if not the most influential astronomers of all time (web 1). Besides his contributions to this field he gave physicists an easier way and more comprehendible way of doing physics. This was due to these three laws that he came up with that where named after him. They were as follows:

Newtonís First Law

A body at rest will remain at a rest or a body in motion will remain in constant motion unless a force is applied to it.

Newtonís Second Law

F=ma

(Force= Mass x Acceleration)

(One of the most used equations in physics)

Newtonís Third Law

For every force there is an equal and opposite reaction.

Newtonís first law applies to anything that is in motion or standing still. It goes on to say that everything will stay the way it was unless a force is applied to it (Holliday). Like a ball will stay in one place forever if nothing ever applies a force to it. Newtonís second law applies to just about every single equation that we use today in physics. This equation gives us the acceleration due to gravity, 9.8 meters per second. It is also used in every equation that has a mass in it because it gives the weight of the mass when it is derived. Newtonís third law is basic common sense that says that when something gives a force there is an equal force being applied to it. Like when you push on a wall the wall pushes back with the same force and also the earth pulling down on you, you are pushing on the earth(web 3). Besides these three laws that Newton gave us he also gave us the reason behind why the moon doesnít fall out of the sky (web 4).

Newtonian World

To understand some of the principles in this paper you have to understand some of the language that is used in physics. One term that is used is ìin a Newtonian worldî. This refers to the fact that a lot of Newtonís principles only work if there is no friction at all.

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