Newtons Law Of Universal Gravitation

Below is a free term papers summary of the paper "Newtons Law Of Universal Gravitation." If you sign up, you can be reading the rest of this term papers in under two minutes. Registered users should login to view this term paper.

Term Paper Title	Newtons Law Of Universal Gravitation
# of Words	1149
# of Pages (250 words per page double spaced)	4.6

Newton's Law of Universal Gravitation

Newton's Law of Universal Gravitation

     Gravity if one of the four fundamental forces in the universe.  Though
the fundamental principles of it eluded scientists until Sir Isaac Newton was
able to mathematically describe it in 1687 (Eddington 93).  Gravity plays a
serious part in everyday actions as it keeps everything on the ground; without
gravity everything would be immobile unless a force was applied (then it would
move infinitely because there would be no force to stop it).
     Perhaps, the best place to start then would be with such a simple item
as an apple (after all it is what "sparked" Newton's creativity).  The apple is
one of the two curiosities (the other being the moon) that led Newton to
discover The Law of Universal Gravitation in 1666 (Eddington 93).  As Newton
later wrote, it is the story of the sight of an apple falling to the ground (he
was resting at Woolsthorpe because of the plague at Cambridge) that caused
Newton to wonder if this same force was what held the moon in place (Gamow 41).
     Newton knew that an object fell to the earth at a rate of about 9.8
meters (32 feet) per second second as pointed out by Galileo.  Thus "the apple
that fell from the tree" fell to Earth at about this rate.  For the first basic
explanation of this we will assume a linear plane, one in which all forces act
in only one direction.  Therefore when the apple fell it went straight towards
the center of the earth (accelerating at about 9.8 meters per second second).
Newton then figured that the same force that pulled the apple to Earth also
pulls the moon to the earth.  But what force keeps the moon from flying into the
earth or the earth flying into the sun (Edwards 493)?
     To better understand this, one other aspect must first be understood.
Galileo showed that all objects fall to the earth at the same rate (the classic
cannonball and feather proved this).  But why?  If a piano and a saxophone were
both dropped from the top of the Empire State Building then they would both slam
into the ground at the same rate.  Newton realized then that the moon and the
apple were both being pulled towards Earth at the same rate but yet the moon was
the only one who resisted the force and stayed in its elliptical orbit
(Eddington 94). Newton's Third Law of Motion says that every force exerted by
one object on another is equal to a force, but opposite in direction, exerted be
the second object on the first (every reaction has an equal bu...

This is not the end of the termpaper! Register below to see the complete version of this term paper.

Membership Plans	Credit Card	Check

1 month membership

3 month membership (You Save 50%)

6 month membership (You Save 67%)

Copyright © 2002-2007 Mid Term Papers. All rights reserved. This term papers website is used for research purposes only.
If you have forgotten your username or password, please click here.
If you like to cancel your account, please click here.

1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22