written by Anne Cox, Wolfgang Christian, and Francisco Esquembre

This resource is a collection of EJS (Easy Java Simulation) models of electrostatics.  Students can move charges around and see the force, observe the electric field generated by charge configurations, and observe the motion of test particles in electric fields. Also included are instructor's guides and student worksheets to supplement the simulations (See "Documents" for supplementary materials.)

Editor's Note: This package was created for use in middle school and 9th grade physical science, but the models can easily be adapted for high school physics courses. SEE ANNOTATIONS for additional content support on Coulomb's Law and charge interactions.

This item was created with Easy Java Simulations (EJS), a modeling tool that allows users without formal programming experience to generate computer models and simulations. To run the simulation, simply click the Java Archive file below. To modify or customize the model, See Related Materials for detailed instructions on installing and running the EJS Modeling and Authoring Tool.

• Download ejs_electric_sampler.jar - 4607kb Java Archive File

Last Modified January 18, 2018

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A zip file of Lesson Plans to accompany the Coulomb's Law and Electric Field Package.

• .zip file (2015 kb Compressed File)

Published December 4, 2009
Last Modified December 4, 2009

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Individual jar file of simulation in package.

• Download ejs_em_CoulombForce.jar - 746kb Java Archive File

Published December 7, 2009
Last Modified February 12, 2010

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Student Worksheet (pdf) for individual simulation in package.

• Download CoulombForceStudentWorksheet.pdf - 65kb Adobe PDF Document

Published December 7, 2009
Last Modified December 7, 2009

This file is included in the full-text index.

Individual jar file of simulation in package.

• Download ejs_em_CoulombPendulum.jar - 740kb Java Archive File

Published December 8, 2009
Last Modified February 12, 2010

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Student Worksheet (pdf) for individual simulation in package.

• Download CoulombPendulumStudentWorksheet.pdf - 57kb Adobe PDF Document

Published December 8, 2009
Last Modified December 8, 2009

This file is included in the full-text index.

Individual jar file of simulation in package.

• Download ejs_em_PointCharge.jar - 1216kb Java Archive File

Published December 8, 2009
Last Modified February 12, 2010

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Student Worksheet (pdf) for individual simulation in package.

• Download ElectricFieldStudentWorksheet.pdf - 107kb Adobe PDF Document

Published December 8, 2009
Last Modified December 8, 2009

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Individual jar file of simulation in package.

• Download ejs_em_ElectricMultipoleField.jar - 1311kb Java Archive File

Published December 8, 2009
Last Modified February 12, 2010

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Student Worksheet (pdf) for individual simulation in package.

• Download ElectricMultipoleStudentWorksheet.pdf - 117kb Adobe PDF Document

Published December 8, 2009
Last Modified December 8, 2009

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This file has previous versions.

Individual jar file of simulation in package.

• Download ejs_em_DipoleTrajectory.jar - 825kb Java Archive File

Published December 8, 2009
Last Modified February 12, 2010

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Student Worksheet (pdf) for individual simulation in package.

• Download DipoleTrajectoryStudentWorksheet.pdf - 106kb Adobe PDF Document

Published December 8, 2009
Last Modified December 8, 2009

This file is included in the full-text index.
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Individual jar file of simulation in package.

• Download ejs_em_ChargeRingTrajectory.jar - 1126kb Java Archive File

Published December 8, 2009
Last Modified February 12, 2010

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Student Worksheet (pdf) for individual simulation in package.

• Download ChargeRingTrajectoryStudentWorksheet.pdf - 116kb Adobe PDF Document

Published December 8, 2009
Last Modified December 8, 2009

This file is included in the full-text index.

Package with smaller jar files for applet distribution.

• Download ejs_electric_sampler_applets.jar - 1975kb Java Archive File

Published December 7, 2009
Last Modified February 12, 2010

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Source Code for the Coulomb's Law and Electric Field Package program. The source code archive contains an XML representation of the Ejs model. Unzip this archive in your Ejs Workspace to compile and run this model using Ejs.

• Download ejs_electric_sampler.zip - 2129kb Compressed File

Released under a This material is released under the GNU General Public License Version 3.

Published December 1, 2009
Last Modified December 4, 2009

This file has previous versions.