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Aim to determine g the acceleration of gravity at a particular location apparatus katers pendulum stopwatch meter scale and knife edges theory katers pendulum shown in fig 1 is a physical pendulum composed of a metal rod 120 m in length upon which are mounted a sliding metal weight w 1 a sliding wooden weight w 2 a small sliding metal cylinder w and two sliding knife . 2nd year laboratory script g1 katers pendulum arb september 2010 v21 page 6 6 the small angle approximation equations a2 a5 and the equation for the period of a simple pendulum t 2l g are all derived assuming that the amplitude of displacement is very small and that sin. 5 program your pendulums source unlike steps 3 and 4 youll want to include this step every time you use your pendulum to answer a question or set of questions the purpose is to establish where the pendulum will get its answers the goal is to tap into your higher self. With respect to the diagram answer the questions that follow i name the pendulum with maximum frequency and the pendulum with minimum frequency ii which pendulum s will start vibrating if pendulum a is disturbed once and name the vibrations of pendulum a iii when pendulum d is disturbed once then all the remaining pendulums start vibrating