Newton's Law of Gravity



 "A famous story tells that [Newton] was prompted to develop his ideas about appletree
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 gravity by watching apples fall from a tree at his home in Lincolnshire, England.  He 
 reasoned that the same force that pulled the apples to the ground was responsible for
holding the Moon in its orbit."

The Way the Universe Works, by Robin Kerrod and Giles Sparrow
    
Your mission is to help Newton explain what gravity is, how it works, how to calculate it, and what it does.  Use the links below to conduct your own research.  When you visit the site on the Universal Law of Gravity, be sure to click the "back" button to return to the WebQuest.  Answer these questions in complete sentences on a seperate sheet of paper.  When you are finished, go to the "Challenge" page to help Newton calculate the gravitational force on Earth and other objects.


                                                                                                                                                         
Newton | Universal Law of Gravity | Earth in Orbit | Challenge