Investigate the effect of changing pendulum length on the period. Use the 200 g mass and a consistent amplitude of 10" for each trial. Vary the pendulum length in steps of 10 cm, from 20 cm to 100 cm (measure the pendulum length from the rod to the middle of the mass) Record the data in the data table. DATA TABLE Experiment Theory L:Length T-Period T' Period 1 Period squared squared % error (m) (s) (s?) 0 0.5 0.6 0-7 0 8 0.9 2 3 ANALYSIS 1. Complete the data table . Calculate To using the formula (2). Calculate the percent error for all trials. 2. Plot the graph T' vs. { . Identify the slope of the graph. What are the units of the slope? 3. Knowing the slope from the last graph, using the equation (2) calculate the experimental value of g on the earth. Calculate the percent error. Show your formulas, calculations. Write the conclusions of the