This program teaches the concepts of the gravitational field and gravitational force and introduces Kepler's Laws of Planetary Motion. Then he works out problems, one step at a time, which demonstrate how to predict the orbits of the planets, or a satellite above the Earth.

Originally released by TMW Media Group, 2007. Streaming video file encoded with permission for digital streaming by Infobase on May 08, 2015.

Gravitational Force (10:27); --Why you Float in Outer Space (7:06); -- Kepler's Laws of Motion (10:06); -- Kepler's Law of Motion: Word Problem (7:38); .