Demo 09-07 Coupled Pendula

Two identical physical pendula are coupled by a spring. When one of the pendula is started into motion, the motion will couple through the spring, and the energy will transfer back and forth from one pendulum to the other, as shown in Figure 1. If the coupling is increased, by using a stiffer coupling spring, the transfer of energy will occur more rapidly. If the two pendula do not have the same natural frequency, the energy will not transfer completely from one pendulum to the other