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Point Charge Forces in 1D Model
written by Andrew Duffy
The Point Charge Forces in One-Dimension model investigates the electric force that one charged particle exerts on another. It is a very simple representation that promotes understanding of Coulomb's Law in three ways: First, students can set the amount of charge on each particle and view vector arrows showing the force on each particle. Second, particle 2 can be dragged left or right to sample the force at various locations. Third, users can click to see a graph that shows electric force as a function of position. The numerical value of each force is shown in a table at the bottom.
See Annotations (below) for an interactive student tutorial on Coulomb's Law, which provides additional content support on electric force.
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.
Please note that this resource requires at least version 1.5 of Java (JRE).
View the source code document attached to this resource
AAAS Benchmark Alignments (2008 Version)
11. Common Themes
AAAS Benchmark Alignments (1993 Version)
4. THE PHYSICAL SETTING
G. Forces of Nature
The Physics Classroom: Coulomb's Law (Author: Tom Henderson)
Before employing this simulation, students may need some help in how to determine the direction of electrical force vectors and a conceptual discussion of Coulomb's Law. This interactive tutorial helps them understand force as a vector quantity before attempting the calculations associated with Coulomb's Law.
This resource is part of a Physics Front Topical Unit.
Topic: "Static" Electricity
Unit Title: Electric Force
Many students have difficulty understanding the interactions that cause an electric force between charges. It helps if they begin their investigation with a very simple 1-D representation of the electric force that one particle exerts on another. The user sets the amount of charge so that the particles can either attract or repel; then vector arrows appear to show the amount of force on each particle. One particle can be moved left or right along the line to see the effect of distance on the force. With one click, students can see a graph of the electric force as a function of position.Link to Unit:
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Point Charge Forces in 1D Model:
Is Based On Easy Java Simulations Modeling and Authoring Tool
The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Point Chrage Forces in 1D Model.relation by Wolfgang Christian
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