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Pendulum with Moving Support JS Model
written by Wolfgang Christian
The Pendulum with Moving Support mobile JavaScript Model illustrates the forces and dynamics of a pendulum attached to a moving support. This simulation uses  the accelerometer on your mobile device to read the proper acceleration as measure by the mobile device. A force body (free body) diagram showing the pendulum rod force (blue), the gravitational force (black), and the force of friction (green) can also be shown. Users set the initial angle in radians and angular velocity in radians/second and you can adjust the viscous damping (friction) coefficient when the simulation is paused.

The Pendulum with Moving Support mobile JavaScript Model was developed using version 5 of the Easy Java Simulations (EJS 5) modeling tool. Although EJS is a Java program, EJS 5 creates stand-alone JavaScript programs that run in almost any browser.
Subjects Levels Resource Types
Classical Mechanics
- Motion in Two Dimensions
= 2D Acceleration
- Newton's Second Law
= Force, Acceleration
- Relative Motion
= Moving Reference Frames
Education Practices
- Technology
= Computers
Oscillations & Waves
- Oscillations
= Damped Oscillators
= Pendula
- Lower Undergraduate
- High School
- Informal Education
- Upper Undergraduate
- Instructional Material
= Interactive Simulation
Intended Users Formats Ratings
- Learners
- Educators
- text/html
- application/zip
- application/javascript
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Access Rights:
Free access
License:
This material is released under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 license.
Rights Holder:
Wolfgang Christian
Keywords:
accelerometer, mobile device
Record Cloner:
Metadata instance created October 17, 2016 by Wolfgang Christian
Record Updated:
December 8, 2016 by Wolfgang Christian
Last Update
when Cataloged:
October 17, 2016
Other Collections:

AAAS Benchmark Alignments (2008 Version)

4. The Physical Setting

4F. Motion
  • 9-12: 4F/H1. The change in motion (direction or speed) of an object is proportional to the applied force and inversely proportional to the mass.
4G. Forces of Nature
  • 6-8: 4G/M1. Every object exerts gravitational force on every other object. The force depends on how much mass the objects have and on how far apart they are. The force is hard to detect unless at least one of the objects has a lot of mass.

11. Common Themes

11B. Models
  • 6-8: 11B/M2. Mathematical models can be displayed on a computer and then modified to see what happens.

AAAS Benchmark Alignments (1993 Version)

4. THE PHYSICAL SETTING

E. Energy Transformations
  • 4E (9-12) #1.  Whenever the amount of energy in one place or form diminishes, the amount in other places or forms increases by the same amount.
F. Motion
  • 4F (6-8) #3.  An unbalanced force acting on an object changes its speed or direction of motion, or both. If the force acts toward a single center, the object's path may curve into an orbit around the center.
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
W. Christian, Computer Program PENDULUM WITH MOVING SUPPORT JS MODEL, Version 1.0 (2016), WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14160&DocID=4525).
AJP/PRST-PER
W. Christian, Computer Program PENDULUM WITH MOVING SUPPORT JS MODEL, Version 1.0 (2016), <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14160&DocID=4525>.
APA Format
Christian, W. (2016). Pendulum with Moving Support JS Model (Version 1.0) [Computer software]. Retrieved December 13, 2017, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14160&DocID=4525
Chicago Format
Christian, Wolfgang. "Pendulum with Moving Support JS Model." Version 1.0. https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14160&DocID=4525 (accessed 13 December 2017).
MLA Format
Christian, Wolfgang. Pendulum with Moving Support JS Model. Vers. 1.0. Computer software. 2016. 13 Dec. 2017 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14160&DocID=4525>.
BibTeX Export Format
@misc{ Author = "Wolfgang Christian", Title = {Pendulum with Moving Support JS Model}, Month = {October}, Year = {2016} }
Refer Export Format

%A Wolfgang Christian
%T Pendulum with Moving Support JS Model
%D October 17, 2016
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14160&DocID=4525
%O 1.0
%O text/html

EndNote Export Format

%0 Computer Program
%A Christian, Wolfgang
%D October 17, 2016
%T Pendulum with Moving Support JS Model
%7 1.0
%8 October 17, 2016
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=14160&DocID=4525


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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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Pendulum with Moving Support JS Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

Use the Easy Java Simulations Modeling and Authoring Tool to edit and to explore the source code for the Pendulum with Moving Support JS Model.

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