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# 1.

The PERIOD of the pendulum is defined as the amount of time it takes for the pendulum to make one complete cycle. However, some people are confused about that definition. Assume the pendulum starts on the right and swings to the left and then back to the right. Is the PERIOD the amount of time it takes to get from the right to the left -- or is it the amount of time it takes to get from the right to the left and back to the right where it started?
Observe the experiment.
Note that in the upper left there are three variables.
• N is the number of complete swings
• T is the period
• L is the length of the pendulum

Having observed the pendulum moving and N changing, what is the PERIOD of the pendulum? Is it the time to swing from right to left, or the time it takes to swing from right to left and back to the right?

# 2.

Change the length of the pendulum and answer the following question:
As the length of the pendulum increases, the period of the pendulum will (increase - decrease - remain constant).

# 3.

In the Applet you are able to increase or decrease the acceleration of gravity by using the mouse to drag the 'g' on the right side.

A longer 'g' vector means a stronger pull of gravity. A shorter 'g' vector means a weaker pull of gravity.

Question: When the pendulum is kept at a constant length, and the acceleration of gravity increases, the period of the pendulum will (increase - decrease - remain constant).

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button.

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