PhysicsLAB Practice Problems
Vibration Graphs and Period

Topics: On this worksheet you will practice reading vibration graphs and correctly answering questions based on its period and frequency.

Page Directions The numerical values in this worksheet are randomly generated allowing students the opportunity to conveniently practice, and drill, common situations.

Before beginning any given worksheet, please look over all of the questions and make sure that there are no duplicate answers shown for the same question. If duplicates are present simply refresh the page until every answer is unique.

In order to check an answer (even when you are just starting the worksheet on Question 1) it is necessary to omit any questions that you have not answered. Once you start submitting answers, the page may be checked as many times as necesasary without changing the randomized answers. Relevant scoring will be provided at the top of the page only when you answer all of the questions on your original submission.


Question 1  The brown-graph shown below tracks the vibrations of a pendulum using a sonic ranger. You are given that the first trough occured at 5.6 seconds and the last trough occured at 22.6 seconds.

Based on the first trough, how many complete vibrations are shown on the graph?
Question 2  What was the pendulum's period?
Question 3  What was the pendulum's frequency?
Question 4  Based on the time of the first trough, how many complete vibrations would have taken place in 33 seconds had the sonic ranger continued recording?
Question 5  Based on the formula for a simple pendulum, how long was the pendulum in this experiment?


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