3B22.90 - Wave Demo - Overhead Wave Model

Code Number:
Demo Title:
Wave Demo - Overhead Wave Model
Wave Motion
Area of Study:
Acoustics, E & M
Overhead wave projector.

Place the model on an overhead projector.  As you turn the stems of the corresponding figures the projection from the overhead will look like a traveling wave.

  • Robert H. March, "A Standing Wave Simulator", TPT, Vol. 27, #5, May 1989, p. 400.
  • Harold C. Jensen, "Longitudinal Standing Waves on the Overhead Projector", TPT, Vol. 7, #2, Feb. 1969, p. 115.
  • George Freier, "Erratum", TPT, Vol. 7, #6, Sept. 1969, p. 342.
  • Harold C. Jensen, "Hot Standing Waves", TPT, Vol. 6, #5, May 1968, p. 254, also A Potpourri of Physics Teaching Ideas - Optics and Waves, p. 225.
  • Rev. Brother Columban Francis, "Waves and Means", TPT, Vol. 3, #8, Nov. 1965, p. 376.
  • Thomas B. Greenslade, Jr., "Waggener's Travelling Wave Demonstrator", AJP, Vol. 89, #4, April 2021, p. 412.
  • Thomas B. Greenslade, Jr., "Projection Wave Machine (Photo)", AJP, Vol. 71, #12, Dec. 2003, p. 1291.
  • Sa- 8: Freier and Anderson, A Demonstration  Handbook for Physics.
  • W-045: "Rotating Slinky on Overhead", DICK and RAE Physics Demo Notebook.
  • Robert Ehrlich, "J.4, Rolled-up Transparency for Longitudinal Waves", Turn the World Inside Out, p. 129.
  • R. W. Pohl, Physical Principles of Mechanics and Acoustics, p. 239.
  • Borislaw Bilash II, “Transverse Waves“, A Demo A Day – A Year of Physical Science Demonstrations, p. 304.

Disclaimer: These demonstrations are provided only for illustrative use by persons affiliated with The University of Iowa and only under the direction of a trained instructor or physicist.  The University of Iowa is not responsible for demonstrations performed by those using their own equipment or who choose to use this reference material for their own purpose.  The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources.  Performing all or any portion of any of these demonstrations, with or without revisions not depicted here entails inherent risks.  These risks include, without limitation, bodily injury (and possibly death), including risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition; and property loss or damage.  Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.