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Computer Program Detail Page

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written by Wolfgang Christian
The Ejs Free Fall model displays the dynamics of a ball dropped near the surface of Earth onto a platform. The initial conditions for the ball are zero initial velocities in the x and y directions.  The coefficient of restitution for the ball's collision with the platform is less than one.  The initial height of the ball can be changed by dragging it when the simulation is paused. 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 Free Fall 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_newton_FreeFall.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.

Please note that this resource requires at least version 1.5 of Java (JRE).
Subjects Levels Resource Types
Classical Mechanics
- General
- Gravity
- Motion in One Dimension
= Gravitational Acceleration
- Lower Undergraduate
- High School
- Instructional Material
= Activity
= Curriculum support
= Interactive Simulation
Intended Users Formats Ratings
- Learners
- Professional/Practitioners
- Educators
- application/java
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Access Rights:
Free access
Restriction:
© 2008 Wolfgang Christian
Additional information is available.
Keywords:
Easy Java Simulations, Ejs, OSP, Open Source Physics, free fall, gravity, one-dimensional motion
Record Creator:
Metadata instance created June 2, 2008 by Mario Belloni
Record Updated:
June 5, 2014 by Andreu Glasmann
Last Update
when Cataloged:
June 1, 2008
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
W. Christian, Computer Program EJS FREE FALL MODEL, Version 1.0 (2008), WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7346&DocID=498).
AJP/PRST-PER
W. Christian, Computer Program EJS FREE FALL MODEL, Version 1.0 (2008), <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7346&DocID=498>.
APA Format
Christian, W. (2008). Ejs Free Fall Model (Version 1.0) [Computer software]. Retrieved August 2, 2014, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7346&DocID=498
Chicago Format
Christian, Wolfgang. "Ejs Free Fall Model." Version 1.0. http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7346&DocID=498 (accessed 2 August 2014).
MLA Format
Christian, Wolfgang. Ejs Free Fall Model. Vers. 1.0. Computer software. 2008. Java (JRE) 1.5. 2 Aug. 2014 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7346&DocID=498>.
BibTeX Export Format
@misc{ Author = "Wolfgang Christian", Title = {Ejs Free Fall Model}, Month = {June}, Year = {2008} }
Refer Export Format

%A Wolfgang Christian
%T Ejs Free Fall Model
%D June 1, 2008
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7346&DocID=498
%O 1.0
%O application/java

EndNote Export Format

%0 Computer Program
%A Christian, Wolfgang
%D June 1, 2008
%T Ejs Free Fall Model
%7 1.0
%8 June 1, 2008
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7346&DocID=498


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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Style.org: Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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Ejs Free Fall 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 Ejs Free Fall Model.

relation by Mario Belloni

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