PENDULUM (2010bB2) The simple pendulum above consists of a bob hanging from a light string. You wish to experimentally determine the frequency of the swinging pendulum.
a. By checking the line next to each appropriate item on the list below, select the equipment that you would need to do the experiment.
____ Meterstick ____ Protractor ____ Additional string
____ Stopwatch ____ Photogate ____ Additional masses
b. Describe the experimental procedure that you would use. In your description, state the measurements you would make, how you would use the equipment to make them, and how you would determine the frequency from those measurements.
c. You next wish to discover which parameters of a pendulum affect its frequency. State one parameter that could be varied, describe how you would conduct the experiment, and indicate how you would analyze the data to show whether there is a dependence.
d. After swinging for a long time, the pendulum eventually comes to rest. Assume that the room is perfectly thermally insulated. How will the temperature of the room change while the pendulum comes to rest? Justify your answer.
____ It would slightly increase ____ It would slightly decrease ____ No effect. It would remain the same
e. Another pendulum using a thin, light, metal rod instead of a string is used in a clock to keep time. If the temperature of the room was to increase significantly, what effect, if any, would this have on the period of the pendulum? Justify your answer.
____ It would increase ____ It would decrease ____ No effect. It would remain the same
