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## The Simple Pendulum

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**What did we measure?**What things affected the period of the pendulum?**KE vs PE**• KE should equal PE • PE at ends of pendulum swing should equal KE at center • PE at top of roller coaster run should equal KE at bottom • PE at top of building should equal KE at bottom**Pendular Motion**The period of the simple pendulum is given by Where T is the period, L is the length of the pendulum, and g is the acceleration due to gravity. T is a function of length. It has a weak dependence on the angular displacement and should not be affected by the mass.**The Complex Pendulum**Chaotic behaviour