Education Prize Logo
Science SPORE Prize
November 2011

NSF Logo
The Open Source Physics Project is supported by NSF DUE-0442581.

Three Charged Particles Model Documents

This material has 2 associated documents. Select a document title to view a document's information.

Main Document

Ejs Three Charged Particles Model 

written by Andrew Duffy

The Ejs Three Charged Particles model displays three charged objects, one at each corner of an equilateral triangle. The charges have different magnitudes - your job is to rank the charges based on their magnitudes, from largest to smallest.  You can drag the charges around to see the effect on the net force on each charge.  You can modify this simulation if you have Ejs installed by right-clicking within the plot and selecting "Open Ejs Model" from the pop-up menu item.  

Ejs Three Charged Particles model was created using the Easy Java Simulations (Ejs) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.  Double clicking the ejs_bu_three_charges.jar file will run the program if Java is installed.  Ejs is a part of the Open Source Physics Project and is designed to make it easier to access, modify, and generate computer models.  Additional Ejs models for Newtonian mechanics are available.  They can be found by searching ComPADRE for Open Source Physics, OSP, or Ejs.

Last Modified June 12, 2014

This file has previous versions.

Supplemental Documents

Ejs Three Charged Particles Worksheet 

A pdf document that contains exercises for use with the Ejs Three Charged Particles Model and the ejs_bu_three_charges.jar file.

Published June 8, 2008
Last Modified July 13, 2008

The OSP Network:
Open Source Physics - Tracker - EJS Modeling
Physlet Physics
Physlet Quantum Physics