Draw the free body diagram for the pendulum. 2. Theoretically, how does the mass of the pendulum affect its period? Do your measurements for the period agree with theory? Explain any discrepancies that you observe. 3. Theoretically, how does the diameter of the pendulum bob affect its period? Do your measurements for the period agree with theory? You should think about how the diameter of the ball affects the length of the pendulum. Explain any discrepancies that you observe. 4. Draw the free body diagram for the spring and mass system. 5. Compare the two methods that you used to measure the spring constant of the springs. Which one gives more accurate results? Discuss the errors associated with each measurement technique. 6. Why does the period of the pendulum not depend on the mass but the period of a mass on a spring does depend on the mass? 7. Explain why it is better to measure many periods of the oscillations than measuring just one period. 8. Discuss any sources of errors in your measurements