Vision Learning
Visionlearning: Mechanics: Gravity: Newtonian Relationships
Explanation of how astronomers and scientist developed the current theories of gravity.
CK-12 Foundation
Ck 12: Physical Science: Newton's Law of Gravity
[Free Registration/Login may be required to access all resource tools.] Newton's law of universal gravitation and factors that affect the strength of gravity between two objects.
Physics Classroom
The Physics Classroom: Newton's Law of Universal Gravitation
States the equation of Newton's law of universal gravitation. States the value of G and uses the equation to solve problems.
TED Talks
Ted: Ted Ed: Free Falling in Outer Space
With a little help from Sir Isaac Newton, Matt J. Carlson explains the basic forces acting on an astronaut during a free fall. [2:59]
Physics Classroom
The Physics Classroom: The Apple, the Moon, and the Inverse Square Law
Describes the logic behind the development of Newton's law of universal gravitation. Beginning with Johannes Kepler and his three laws of planetary motion, content walks the reader through Newton's thought process and development of this...
Physics Classroom
The Physics Classroom: Cavendish and the Value of G
A short description of how Cavendish measured the value of G - the universal gravitation constant and supported Newton's theory. Illustrated.