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3A70.25-3 - Loosely Coupled Pendula

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3A70.25-3 - Loosely Coupled Pendula
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Title3A70.25-3 - Loosely Coupled Pendula
Objective

​Demonstrate the harmonic motions of two loosely coupled pendula

StatusAvailable
Assembly Instructions

​Attach two bench rod and clamp assemblies to a cart and space them moderately apart. Attach a rod clamp to each bench rod near the top. On a seperate rod, add two rod hooks which will hold the pendula. Attach the rod with hooks between the two bench rod clamp assemblies utilizing the added rod clamps at the top. The rod with hooks should now be secured and fixed horizontal to the ground. Add the pendula and couple the two together with a weak spring. 

Setup Time5
Operation Time0
Preview Time5
Operation Instructions

​Carefully pull one pendula to a side and let go. Watch the observed harmonic motions and how it changes over time. Motions can be in-phase, out-of-phase, and beats.

ExportableYes
Demo on DimeNo
PIRA 200No
Export Instructions (if different)
HazardsNone
Analysis/Information

​Energy is transferred through the spring which connects the pendula. The oscillation of the second pendula is driven by the oscillations of the first pendula. 

Category3 Oscillations
Subcategory3A - Oscillations
Keywords
Construction Information
 
Equipment TitleUse SHIFT+ENTER to open the menu (new window).
  
QuantityUse SHIFT+ENTER to open the menu (new window).
  
bench clamp
2
bench rod
3
rod clamp
2
rod clamp hook
2
pendula with string and springs (spring coupled pendula)
2