Determination of the acceleration due to gravity using a simple pendulum.

... AS Physics Coursework HANNAN SHAH Determination of the acceleration due to gravity using a simple pendulum Method Front view Side view First a long piece of string (approximately 1.5m long) was tied to a bob. A metre rule was used to measure a length of 1.2m from the centre of mass of the bob to the string. The remaining length of string was placed between the wooden blocks and clamped to the retort stand, as shown above. The wooden blocks were used to define the right angles to help when measuring the displacement and also to measure the string again to ensure it is still the same as the original measured length. Once the equipment was set up the bob was given a displacement of approximately 10 degrees and let go. The displacement has to be of this magnitude or else the error when calculating 'g' using (T = 2?Vl/g) will be greater. The stopwatch

want to read more? →