A mass attached to a horizontal spring can be set into oscillation by extending or stretching through a small displacement. Graphs of the mass's displacement, acceleration, kinetic energy and potential energy are displayed in real time. User can vary the force constant of the spring and damping factor to see how they affect the oscillation of the mass.

For information on how to use or create this physics simulation model, please visit
greenunity.net/PhyTang/IP/IP_models.asp

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