Determinating of acceleration due to gravity by timing a simple pendulum

... Physics Laboratory Report The number and the name of the experiment:Experiment 4- Determinating of acceleration due to gravity by timing a simple pendulum The date of experiment:18 / 1 / 08 Objective * To investigate the relationship between the period and the distance of pendulum bob from the ground * To measure the acceleration due to gravity from the experiment Apparatus * A piece of string at least one meter long * retort stand and clamp * stop-watch * a pendulum bob * g-clamp / heavy stuff(for fixing the stand) * two coins * a table * a chair The diagram of the setup Procedure 1. Attach the pendulum bob to one end of the light string and nail the string to the coins, and place the coins onto the stand. 2. Set the pendulum bob to swing through a small arc of about 200 3. Measure the time for the bob to complete 20 oscillations. 4. Repeat the timing. Record the results in the table. 5. Change

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