... saw that the period of the swing was independent of how far it swung. Only the length of the pendulum made any difference to the time required for a swing. This formula allows the period of a pendulum to be calculated: P = 2??(l/g) * P is the period of oscillation of the pendulum (in seconds). * L is the length of the pendulum (in metres). * G is the acceleration of gravity (on Earth this is counted as 9.8). * ? has the value of 3.14159...etc. Prediction and Hypothesis Length is a certain factor, which will determine the time of oscillation of a pendulum. It is difficult to state why this is, but it helps to actually visualise a pendulum swinging. The shorter the pendulum is, the faster it will oscillate and visa versa - the longer the pendulum is, the longer it will take for each oscillation to take place. This is because of the effect ...

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