Universal Gravitation & Planetary Motion

Kepler's Laws of Planetary Motion
    Scroll down, find the Java Applet, read directions, change parameters, and make observations

Gravitation Simulation I
    You're in charge of a Solar System!!

Gravitation Simulation II
    Two-body gravity simulator.  Change perspectives from Red and Blue Planets and the center of gravity for the two-body system.  Planetary masses can also be modified.

Planetary Motion of a Three Body Solar System
    Make observations of a three-body solar system.  What do the red lines represent?

Newton's Cannon
    Slowly increase the object's velocity and determine the "orbital" and "escape" velocities for Earth.

Measuring Big G, the Universal Gravitation Constant (1798)
    Can you examine this diagram and explain how the "Cavendish Apparatus" was used to measure "Big G"

Measuring Big G, the Universal Gravitation Constant (2000)
    This is the experiment performed in 2000 that measured "Big G" to the highest level of precision yet achieved.