Use approximately 20 washers or 30 paper clips and string to construct a pendulum that is 100.0 cm long. Remember that the length of a pendulum is measured from the point of attachment to the middle of the bob. Hang the pendulum using the pencil, as described in the previous activity. Since the pendulum is quite long, you may need to stack books on the table to increase the height from which the pendulum is suspended. You may need someone to help you with this part. Pull the mass to one side and release it to begin the swinging motion of the pendulum. Use the stopwatch to measure 10 complete swings of the pendulum. Enter the time in Table 1. Calculate the period (time for one complete swing) of the pendulum at this length and record into the data table. Repeat steps 2 to 4 until Table 1 is completed, using other lengths for the pendulum. It is important that you record the data in meters. (100 cm = 1 m) Complete the analysis and questions in the worksheet