Georgia State University
Georgia State University: Hyper Physics: Gravity
Gravity as a fundamental force is explained and an equation for universal gravitation is given.
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.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: The Center of Mass
This site from the Illinois Institute of Technology provides a lab activity in which students determine the location of the center of mass of an irregularly shaped object. Observations are related to the balancing point of the object....
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Center of Gravity Lab
This Illinois Institute of Technologysite provides a lab activity in which students find the center of gravity of a box which has nonuniform weight distribution. Complete with directions and discussion questions; answers provided.
NASA
Nasa: The Rocket Motor
An online version of a book pertaining to task of launching rockets into space and subsequently navigating them through space. The first several "chapters" (pages) describe the influence of gravity on Earth and the barriers which it...