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written by Michael Fowler and Heather Welch
This web page demonstrates Kepler's Laws through a Flash simulation. The user places an object at some distance from the Sun and gives it an initial velocity to orbit the sun. Once the simulation begins, it shows the distance between the planet and the Sun, the days that have gone by, and the orbiting speed. An option is also available to show the areas swept out by the object in equal times. Both elliptical and parabolic trajectories are possible.
Subjects Levels Resource Types
- Fundamentals
= Kepler's Laws
Classical Mechanics
- Gravity
= Kepler's Laws
- Lower Undergraduate
- High School
- Instructional Material
= Curriculum support
= Interactive Simulation
- Audio/Visual
= Movie/Animation
Intended Users Formats Ratings
- Learners
- Educators
- application/flash
  • Currently 3.0/5

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Access Rights:
Free access
© 2003 Michael Fowler
Kepler's Law, Planetary Motion
Record Creator:
Metadata instance created June 23, 2007 by Enrique Suarez
Record Updated:
September 21, 2021 by Lyle Barbato
Last Update
when Cataloged:
June 25, 2007
Other Collections:

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Record Link
AIP Format
M. Fowler and H. Welch, (2003), WWW Document, (
M. Fowler and H. Welch, Planetary Motion (2003), <>.
APA Format
Fowler, M., & Welch, H. (2007, June 25). Planetary Motion. Retrieved June 21, 2024, from
Chicago Format
Fowler, Michael, and Heather Welch. Planetary Motion. June 25, 2007. (accessed 21 June 2024).
MLA Format
Fowler, Michael, and Heather Welch. Planetary Motion. 2003. 25 June 2007. 21 June 2024 <>.
BibTeX Export Format
@misc{ Author = "Michael Fowler and Heather Welch", Title = {Planetary Motion}, Volume = {2024}, Number = {21 June 2024}, Month = {June 25, 2007}, Year = {2003} }
Refer Export Format

%A Michael Fowler %A Heather Welch %T Planetary Motion %D June 25, 2007 %U %O application/flash

EndNote Export Format

%0 Electronic Source %A Fowler, Michael %A Welch, Heather %D June 25, 2007 %T Planetary Motion %V 2024 %N 21 June 2024 %8 June 25, 2007 %9 application/flash %U

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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

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