Skip Ribbon Commands
Skip to main content
SharePoint

3B22.10 - Standing Waves

The Web Part cannot find an InfoPath form in the specified location. Either the location does not have an InfoPath form associated with it or it is on a different site collection. Modify the Web Part Properties and select a list or library on the current site.

​3B22.10 - Standing Waves

Preview
SelectSelected
Title3B22.10 - Standing Waves
Objective

Demonstrate standing waves.

StatusAvailable
Assembly Instructions

Overview
Use the 150 VDC PS, w/ the black cloth background.
Instructions
The motor operated cord driver with the white rubber cord is clamped on the edge of the table. The other end of the rubber cord is caught in a clamp fastened to a short length of rod in another bench clamp. The motor is plugged into a variac which acts as a speed control. The density of the cord is not high enough that the cord can be easily driven in its fundamental mode, but the third harmonic is quite easy to get. In order to get these low harmonics, the tension in the cord must be quite low. In fact, the cord must have several inches to a foot of slack in it. It is very difficult to get the motor to drive at these low speeds, but there is the advantage that the motor tends to lock on the natural frequencies of the cord as the amount of driving power required is much less.

Setup Time20
Operation Time
Preview Time5
Operation Instructions
ExportableNo
Demo on DimeNo
PIRA 200Yes
Export Instructions (if different)
HazardsNone
Analysis/Information
Category3 Oscillations
Subcategory3B - Wave Motion
Keywordstransverse wave
Construction Information
 
  
  
mounted variac, motor operated cord driver, and rubber cord assembly
1
bench clamp
1
rod clamp
1
bench rod L-shaped large
1
stroboscope (optional)
1