Info

Same as 3A70.1 Spring-Coupled Pendula. This time, however, observe the two normal modes by a) releasing both pendula from the same side or b) releasing them from opposite sides. There's a slight shift in the resonance frequency- detecting this small change is the basis of how an atomic force microscope (AFM) works, for example.

Parts List

2 Pendula connected with Springs mounted on Stands in C. Oscillations, 1B

Relevant Simulation

Demo Example (Both Are Pulled Back and Released):

Demo Example (Only One Initially Moves):

Demo Example (Both Initially Start at One Side):

Other Information

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Real-Life Examples

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More Advanced Reading

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