Purchase or download the latest version of the software by going here!

Discover how the charge of the electron was found! A VERY important experiment that allowed for other quantitative values to be obtained

Some program features:

  • Explore how oil drops mass affects fall rate.
  • Explore how voltage on a plates can affect a charged or uncharged object.
  • Freeze the motion
  • Add additional oil drops
  • Keep charge or mass the same for each particle.
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The Virtual Oildrop Program is $20 (U.S.). The program can be used at home by the students enrolled at the school the software is liscensed to.

For a single school
To order the program for your school and receive the registration codes and individual program immediately upon registration, click Here.

For a district/board or multiple schools
If you would like to buy a license for multiple schools contact "info (at)". Program(s) of your choice can be configured into one file and include your district/board logo for easy use at all the schools you register for. No registration codes will be required to run the file.
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Sample Screen Shots

Main Screen
Zoom in
on drop
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Be sure to check out Subscribe to me on YouTube for videos on how the software can be used.

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Updated:Feb  2013