How Everything Works
How Everything Works How Everything Works
 

QUESTIONS AND ANSWERS
 
Question 798

If there were no friction or air resistance, would the bowling ball pendulum continue in motion forever?
Yes. If the pendulum had no way to convert its energy into thermal energy (e.g., via friction) and no way to transfer that energy elsewhere (e.g., via air resistance), it would continue to swing forever. While its energy would transform from gravitational potential energy (at the ends of each swing) to kinetic energy (at the middle of each swing) and back again, over and over, the total amount of energy it has won't change.
         

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