The Simple Circular Motion Model explores amusement park rides like a Merry-Go-Round. The rotational speed and radial distance are controlled with sliders at the bottom of the applet. The controls are "lagged" to reduce the unphysical results of "slamming" the simulation controls. The net horizontal force on the riders is monitored in the accompanying graph in terms of "g's", that is, in terms of multiples of the rider's weight.
The Simple Circular Motion 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 jar file will run the program if Java is installed.
Please note that this resource requires
at least version 1.5 of
Simple Circular Motion Source Code
The source code zip archive contains an XML representation of the Simple Circular Motion Model. Unzip this archive in your Ejs workspace to compile and run… more... download 519kb .zip
Last Modified: January 15, 2012
6-8: 4E/M4. Energy appears in different forms and can be transformed within a system. Motion energy is associated with the speed of an object. Thermal energy is associated with the temperature of an object. Gravitational energy is associated with the height of an object above a reference point. Elastic energy is associated with the stretching or compressing of an elastic object. Chemical energy is associated with the composition of a substance. Electrical energy is associated with an electric current in a circuit. Light energy is associated with the frequency of electromagnetic waves.
6-8: 4F/M3b. If a force acts towards a single center, the object's path may curve into an orbit around the center.
9-12: 4F/H8. Any object maintains a constant speed and direction of motion unless an unbalanced outside force acts on it.
11. Common Themes
6-8: 11B/M4. Simulations are often useful in modeling events and processes.
9-12: 11B/H3. The usefulness of a model can be tested by comparing its predictions to actual observations in the real world. But a close match does not necessarily mean that other models would not work equally well or better.
%0 Computer Program %A Gallis, Michael %D January 9, 2012 %T Simple Circular Motion Model %8 January 9, 2012 %U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11641&DocID=2529
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