Curated OER
Kepler's Third Law
High schoolers use Kepler's third law to derive the velocity in a circular orbit of any radius, and identify the Earth escape velocity.
CK-12 Foundation
Ck 12: Kepler's Laws of Planetary Motion
In this online lesson students will learn the impacts of the scientific contributions of a variety of historical and contemporary scientists on scientific thought and society.[Free Registration/Login may be required to access all...
OpenStax
Open Stax: Satellites and Kepler's Laws: An Argument for Simplicity
In the following interactive students will begin to understand the laws of Kepler regarding planetary motion and derive the third law of Kepler for circular orbits. They will also discuss the Ptolemaic model of the universe.
Exploratorium
Exploratorium: Your Age on Other Worlds
Enter your birthday and find out how old you are on the other planets in the Milky Way Galaxy. Understand why our age is different on each planet.
Georgia State University
Georgia State University: Hyper Physics: Kepler's Laws
An outstanding page describing Kepler's three laws of planetary motion.
Cornell University
Cornell University: Astronomy: Orbital Motion and Kepler's Laws
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.