Lab tteport ll LXPEI'IITIEDI r: bll'ple Harmonic iylotion In Part A first we determined the masses of each ball being used as pendulum bobs. The pendulum was then set up using a length of 100 cm with the brass ball connected to the end. Using the meterstick to measure, the amplitude was set at 10 cm prior to releasing it. Counting 10 swings of the pendulum and measures the time that was taken to complete the swings. From the information gathered, the period of the pendulum was calculated. This experiment was repeated with a 100 cm long string and a 20 cm amplitude using a brass ball, a 50 cm long strin and a 10 cm amplitude with a brass ball, and a 50 cm long string and a 10 cm amplitude. Final]; the percent difference was calculated. In Part B, the brass spring hanging the support rod where the initial length of the spring should be measured. A 500 g mass is then attached to the spring and the final length of the sprii is measured. The displacement distance is then determined by taking the difference of the initia and final length. The restoring force is determined by using the mass value and g=9.80 m! 33, then followed by that the spring constant was determined. All previous steps tsn'll then be repeated for the steel spring. In Part C, the brass and steel spring is continued to be used keeping the 500 g mass on them. The spring should then be pulled down to the amplitude of 5 cm and releasing the spring for 10 seconds counting the number of cycles within that time. Determine the frequency and period just as it was done in Part A. Reset the brass spring but now use an amplitude of 10 cm and count the number of cycles within the 10 seconds. Change the mass to 1000 g and pull doy. to an amplitude of 5 cm then repeat the last step. Finally, determine the frequency of the steel spring with a mass of 500 g using an amplitude of 5 cm and repeat the last step