3B22.30 - Wave Demo - Wave Machines

Code Number:
3B22.30
Demo Title:
Wave Demo - Wave Machines
Condition:
Excellent
Principle:
Wave Motion
Area of Study:
Acoustics, E & M

Disclaimer

Equipment:
Wave Machines (4) (Crank Models), Wave Machines (Wire Models with Accessories).
Procedure:

Set the wire machines up as shown and connect the water damper and counter balance.  This is to help damp out the reflecting wave which is unwanted most of the time.

The hand crank wave machines will need periodic oiling, adjusting, and painting of the moving parts.

References:
  • Thomas B. Greenslade Jr., "Some Thoughts About Longitudinal Wave Machines", TPT, Vol. 61, #3, March 2023, p. 202.
  • Carl E. Mungan, "Sign Convention for Backward Traveling Waves", TPT, Vol. 57, #3, Mar. 2019, p. 132.
  • James Perkins and Michael J. Ruiz, "A Reliable Wave Convention for Oppositely Traveling Waves", TPT, Vol. 56, #9, Dec. 2018, p. 622.
  • John A. Daffron and Thomas B. Greenslade Jr., "Reproducing an Early-20th-Century Wave Machine", TPT, Vol. 54, #6, Sept. 2016, p. 383.
  • David S. Abbott, "Wavelength, Frequency, and Constant Speed Buggies", TPT, Vol. 53, #8, Nov. 2015, p. 502.
  • Jim Hicks, "Bridging Activities: Concrete to Abstract", TPT, Vol. 51, #4, Apr. 2013, p. 252.
  • Yajun Wei, "Improving Students' Understanding of Waves by Plotting a Displacement-Time Graph in Class", TPT, Vol. 50, #4, Apr. 2012, p. 234.
  • John D. Daffron, Thomas B. Greenslade, Jr., and Dale Stille, "The Iowa Wave Machines", TPT, Vol. 48, #3, Mar. 2010, p. 200.
  • Imelda S. Caleon and R. Subramaniam, "Exploring Students' Conceptualization of the Propagation of Periodic Waves", TPT, Vol. 48, #1, Jan. 2010, p. 55.
  • Thomas B. Greenslade Jr., "Apparatus Review: Cenco Wave Apparatus", TPT, Vol. 53, #1, Jan. 2009, p. 53.
  • Michael Sobel, "The Standing Wave on a String as an Oscillator", TPT, Vol. 45, #3, Mar. 2007, p. 137.
  • Panagiotis Pantidos and Stamatis Patapis, "Kinesthetic Transverse Wave Demonstration", TPT, Vol. 43, #6, Sept. 2005, p. 344.
  • James Flaten and Ronnie Cooper, "Improving Upon Mach's Wave Machines to Demonstrate Traveling Waves", TPT, Vol. 43, #3, May 2005, p. 304.
  • Thomas B. Greenslade, Jr., "Models of Traveling Waves", TPT, Vol. 39, #8, Nov. 2001, p. 466.
  • Ned Mayo, "Ocean Waves - Their Energy and Power", TPT, Vol. 35, #6, Sept. 1997, p. 352.
  • John D. McGervey, "Hands-on Physics for Less Than a Dollar per Hand-Part II", TPT, Vol. 34, #7, Oct. 1996, p. 448.
  • Barry Kluger-Bell, "Traveling Wave Demonstration", TPT, Vol. 33, #3, Mar. 1995, p. 174.
  • Charlotte Farrell, "A Sound-Wave Demonstrator - For About $10?", TPT, Vol. 29, #3, Mar. 1991, p. 185.
  • Thomas B. Greenslade Jr. and Walter Connolly, "Harmonic Sliders", TPT, Vol. 28, #8, Nov. 1990, p. 568.
  • Thomas B. Greenslade Jr., "Transverse Wave Machine", TPT, Vol. 27, #7, Oct. 1990, p. 508.
  • James Hicks and Chris Chiaverina, "Catch the Wave", TPT, Vol. 28, #3, Mar. 1990, p. 167.
  • A. E. Cordero-Borboa, "Standing Wave Pattern for Perfect Free End Conditions on a Pool Wall", TPT, Vol. 23, #7, Oct. 1985, p. 428.
  • I. A. McDoom, "Simple Apparatus for Demonstrating the Propagation of a Transverse Wave", TPT, Vol. 23, #3, Mar. 1985, p. 182.
  • Richard B. Minnix, D. Rae Carpenter Jr., and Robert Ehrlich, "Air Table Experiments Without an Air Table", TPT, Vol. 23, #2, Feb. 1985, p. 113.
  • Ronald D. Edge, "Physics and the New Games or Pretend Your an Atom", TPT, Vol. 20, #9, Dec. 1982, p. 596.
  • Thomas B. Greenslade Jr., "Apparatus for Natural Philosophy; 19th Century Wave Machines", TPT, Vol. 18, #7, Oct. 1980, p. 510.
  • Donald Trollope, "Sine Wave Analog", TPT, Vol. 17, #2. Feb. 1979, p. 130.
  • Thomas B. Greenslade, Jr., "Wheatstone's Wave Addition Device (Photo)", AJP, Vol. 70, #4, Apr. 2002, p. 432.
  • Glen T. Clayton, Harry D. Downing, and Thomas O. Callaway, "Wave Demonstration Device", AJP, Vol. 49, #4, Apr. 1981, p. 375.
  • B. A. Burgel, "Dispersion, Reflection, and Eigenfrequencies on the Wave Machine", AJP, Vol. 35, #10, Oct. 1967, p. 913.
  • Nick Pizzo, Luc Dieke, Alex Ayet, "How Does the Wind Generate Waves?", Physics Today, Vol. 74, #11, Nov. 2021, p. 39.
  • Callum J. Shakespeare, "Spontaneous Generation of Internal Waves", Physics Today, Vol. 72, #6, June 2019, p. 34.
  • "W-030: Wave Machine", DICK and RAE Physics Demo Notebook.
  • Freier and Anderson, "Sa-4, 6, 7", A Demonstration Handbook for Physics.
  • R. W. Pohl, "10. Waves at the Surface of a Fluid", Physical Principles of Mechanics and Acoustics, p. 218.
  • David Kutliroff, "14, A Transverse Wave Demonstrator", 101 Classroom Demonstrations and Experiments For Physics Teachers, p. 39.
  • Cunningham and Herr, "6.1.1. Wave Characteristics", Hands-On Physics Activities with Real Life Applications.
  • Brown, "A Wave Machine", 333 More Science Tricks & Experiments, p. 23.
  • Raymond Bruman, "Wave Machine", Exploratorium Cookbook I, p. 62.1 - 62.4.
  • The Science House, North Carolina State University"Soda Straw Torsional Waves", Physics From the Junk Drawer, 3rd Edition, p. 43.
  • Curt Supulee, "Making waves", Everyday Science Explained, National Geographic, p. 56 - 57.
  • Joseph Frick, "#133 - Waves in Water", Physical Technics: Or, Practical Instructions for Making Experiments in Physics and the Construction of Physical Apparatus with the Most Limited Means", p. 163. 

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.