At this site from the Astronomy Department of Cornell University, Kepler's three laws of planetary motion are stated. There are brief explanations of each, along with links to additional information on related subjects.

College-level online course highlighting the study of classical mechanics. This course focuses on Newtonian mechanics, fluid mechanics, and kinetic gas theory. Course features include a 35 video lecture series by Walter Lewin. Also link...

This site from the Illinois Institute of Technology provides a set of directions for the creation of a solar system model out of paper mache. Includes orbital distances and planet diameters for the nine planets. Great idea for a student...

Kepler's Laws 1,2,3 including eccentricity of elliptical orbits. Good for reviewing planetary motions (NYS Earth Science).

From The Physics Classroom. Uses easy- to-understand language to discuss how circular motion principles apply to the motion of satellites. Describes the tangential velocity and centripetal acceleration of a satellite. Includes many...

The mathematics associated with the motion of satellites is described. Equations (for period, velocity, acceleration and force) are stated, symbols described, and sample problems solved. Includes five practice problems with solutions and...

Good site explaining the laws of planetary motion and ellipses