Science SPORE Prize
November 2011
The Open Source Physics Project is supported by NSF DUE-0442581.
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Molecular Dynamics Demonstration Model Documents
This material has 6 associated documents. Select a document title to view a document's information.
Main Document
written by
Wolfgang Christian
The EJS Molecular Dynamics Demonstration model is constructed using the Lennard-Jones potential truncated at a distance of 3 molecular diameters. The motion of the molecules is governed by Newton's laws, approximated using the Verlet algorithm with the indicated Time step. For sufficiently small time steps dt, the system's total energy should be approximately conserved. Users can select various initial configurations using the drop down menu.
The Molecular Dynamics 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_MultipleCoinToss.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 classical mechanics are available. They can be found by searching ComPADRE for Open Source Physics, OSP, or Ejs.
Last Modified August 24, 2012
 This file has previous versions.
Supplemental Documents (4)
A customized Molecular Dynamics Demo model designed to teach simple molecular dynamics concepts using a realistic simulation. The middle school lesson packaged within this model was written by Barbara Christian for her science class.
Published October 10, 2010
Last Modified August 25, 2012
This file has previous versions.
A pdf file that provides additional documentation regarding customization of this simulation.
Published July 12, 2012
Last Modified August 9, 2012
 This file is included in the full-text index.
This file has previous versions.
A middle school science lesson plan designed to teach temperature concepts using a realistic simulation.
Copyright by Barbara Christian. Free for non-commercial use with attribution.
Published October 10, 2010
Last Modified October 12, 2010
This file is included in the full-text index.
Answer key with screen shots for the middle school science lesson plan.
Copyright by Barbara Christian. Free for non-commercial use with attribution.
Last Modified October 12, 2010
This file is included in the full-text index.
Source Code Documents
The source code zip archive contains an XML representation of the Molecular Dynamics Demo Model. Unzip this archive in your Ejs workspace to compile and run this model using Ejs.
Last Modified August 24, 2012
This file has previous versions.
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Molecular Dynamics Demonstration Model
