Double metal plate with plastic tube and masses (set)

 

Code Number: 2C20.40

Demo Title: Plates and Weights

Condition: Good

Principle: Coanda Effect, Entrainment

Area of Study: Fluids

Equipment: 

Double metal plate with plastic tube, Masses (set).

Procedure:

Turn the air stream on full blast.  Insert the lower plate with the small stem into the hole of the upper plate.  When the plates get close enough together, the lower plate should be suction sealed against the top plate.  At least 300 grams of weight can be applied to the lower plate before it falls off.

References:

  • Martin Gardner, "Three for Bernoulli", TPT, Vol. 34, # 2, Feb. 1996, p. 79.
  • Chris Waltham, Sarah Bendall, Andrzei Kotlicki, "Bernoulli Levitation", AJP, Vol. 71, # 2, Feb. 2003, p. 176.
  • Fj- 5:  Freier and Anderson,  A Demonstration Handbook for Physics.
  • F- 215:  "Spool and Card - Metal Disks",  DICK and RAE Physics Demo Notebook.
  • M- 295:  Richard Manliffe Sutton, Demonstration Experiments in Physics.
  • George M. Hopkins, "Gases", Experimental Science, p. 101.
  • Martin Gardner, "Three for Bernoulli", Science Tricks, p. 19.
  • Martin Gardner, "Bernoulli's Principle", Entertaining Science Experiments with Everyday Objects, p. 109.
  • Vicki Cobb and Kathy Darling, "No Windfall Here", Bet You Can't!, p. 58.
  • Janice VanCleave, "24, Super Breath", Teaching the Fun of Physics, p. 37.
  • Brown, 333 Science Tricks & Experiments.
  • "Bernoulli Levitator", Exploratorium Science Snackbook, p. 6.1 - 6.2.
  • 3.03:  R. D. Edge, "Bernoulli Effect", String and Sticky Tape Experiments.
  • Bernoulli's Equation, Princeton University, https://www.princeton.edu/~asmits/Bicycle_web/Bernoulli.html
2C20.40 - Bernoulli Principle Demo - Plates and Weights
2C20.40 - Dr. James Wetzel, PHYS 1611 - Plates and Weights