- Sections
- A. General Materials & Mathematics
- B. Statics
- C. Kinematics & Dynamics
- D. Rotational Mechanics
- E. Gravitation & Astronomy
- F. Fluid Mechanics
- G. Vibrations & Mechanical Waves
- H. Sound
- I. Thermodynamics
- J. Electrostatics & Magnetostatics
- K. Electromagnetic Principles
- L. Geometrical Optics
- M. Wave Optics
- N. Spectra & Color
- O. Vision
- P. Modern Physics
Kundt's Tube - Oscillator Driven
Purpose
To demonstrate standing waves in an air column.
Equipment
Kundt's tube with cork dust and rosin cloth.
Images
Description
An oscillator in the 1000-5000 Hz frequency range drives a loudspeaker at one end of a clear plastic tube, with the other end stopped by a moveable plunger. Varying the frequency of the oscillator or the position of the plunger, one can obtain a series of standing wave patterns, which are made visual by the motion of cork dust in the bottom of the tube. The standing wave pattern is shown to large groups by placing the device on anoverhead projector. This is a very dramatic demonstration, and is very effective in providing an introduction to standing sound waves. For elementary classes, the mot
References
Lecture Demonstration, Bill Norwood, Demonstration Design Drawing, (June 1978). ◙Specifications and Instructions for Models ID-40 and ID-40T Heavy Duty Drivers, University Speakers/Microphones, Oklahoma City, OK. E. N. Da C. Andrade, On the Groupings and General Behavior of Solid Particles Under the Influence of Air Vibrations in Tubes,Philosophical Transactions of the Royal Society of London, Vol 230, 13-445, (1931). A. T. Jones, Sound, 208-214, Van Nostrand, NY (1937). A. T. Jones, Sound, 172-180, Van Norstand, NY (1937). ◙Howard S. Siefert, A Miniature Kundt Tube, AJP 7(6), 421-422, (1939
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See pagesg1. simple harmonic motion
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See pagesg2. resonance & coupled oscillations
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See pagesg3. mechanical waves one dimensional
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See pagesg4. mechanical waves two dimensional
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See pagesg1. simple harmonic motion
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See pagesg2. resonance & coupled oscillations
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See pagesg3. mechanical waves one dimensional
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See pagesg4. mechanical waves two dimensional