Seed 101

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course Phy 121

A pendulum requires 2 seconds to complete a cycle, which consists of a complete back-and-forth oscillation (extreme point to equilibrium to opposite extreme point back to equilibrium and finally to the original extreme point). As long as the amplitude of the motion (the amplitude is the distance from the equilibrium position to the extreme point) is small compared to the length of the pendulum, the time required for a cycle is independent of the amplitude.How long does it take to get from one extreme point to the other, how long from an extreme point to equilibrium, and how long to go from extreme point to equilibrium to opposite extreme point and back to equilibrium? 

 

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answer/question/discussion:

 One extreme point to another= 1s

One extreme point to equilibrium=.5s

extreme point, to equilibrium, to extreme point, to equilibrium=1.5s

What reasonable assumption did you make to arrive at your answers?

 

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answer/question/discussion:

That if you divided the the pendulums motion into four equal sections covering the same portion of the cycle, that each section will take 1/4th the time of the overall cycle.

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Excellent.

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