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written by
Andrew Duffy
This web page is an interactive physics simulation relating to circular motion. The system is a ball on a string, rotating in a circle perpendicular to gravity. The user can change the mass of the weight, or the tension in the string. The ball's velocity and angle relative to the string are calculated and displayed. This item is part of a larger collection of introductory physics simulations developed by the same author.
This is part of a collection of similar simulation-based student activities. Please note that this resource requires Java.
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![]() <a href="https://www.compadre.org/portal/items/detail.cfm?ID=6851">Duffy, Andrew. Boston University Physics Applets: Circular Motion-A Ball on a String. April 20, 2001.</a>
![]() A. Duffy, Boston University Physics Applets: Circular Motion-A Ball on a String (2000), <https://physics.bu.edu/~duffy/java/Circular.html>.
![]() Duffy, A. (2001, April 20). Boston University Physics Applets: Circular Motion-A Ball on a String. Retrieved May 1, 2025, from https://physics.bu.edu/~duffy/java/Circular.html
![]() Duffy, Andrew. Boston University Physics Applets: Circular Motion-A Ball on a String. April 20, 2001. https://physics.bu.edu/~duffy/java/Circular.html (accessed 1 May 2025).
![]() Duffy, Andrew. Boston University Physics Applets: Circular Motion-A Ball on a String. 2000. 20 Apr. 2001. 1 May 2025 <https://physics.bu.edu/~duffy/java/Circular.html>.
![]() @misc{
Author = "Andrew Duffy",
Title = {Boston University Physics Applets: Circular Motion-A Ball on a String},
Volume = {2025},
Number = {1 May 2025},
Month = {April 20, 2001},
Year = {2000}
}
![]() %A Andrew Duffy %T Boston University Physics Applets: Circular Motion-A Ball on a String %D April 20, 2001 %U https://physics.bu.edu/~duffy/java/Circular.html %O application/java ![]() %0 Electronic Source %A Duffy, Andrew %D April 20, 2001 %T Boston University Physics Applets: Circular Motion-A Ball on a String %V 2025 %N 1 May 2025 %8 April 20, 2001 %9 application/java %U https://physics.bu.edu/~duffy/java/Circular.html Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.
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. |