Set your pendulum to a length of 0.5m and a mass of 0.1 kg. Pull it back to 15 degrees and let it swing. Measure the time for ten full cycles, then use that to calculate the period. Which statement matches your data?
1) The period of the pendulum is directly proportional to the square root of the length.
2) The period of the pendulum is directly proportional to the mass.
3) The period of the pendulum is directly proportional to the amplitude.
4) The period of the pendulum is inversely proportional to the square root of the length.
