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.
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omit
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?
15.5
14.5
15
14
16
omit
Question 2
What was the pendulum's period?
1.21 x 10
0
seconds
1.13 x 10
0
seconds
8.82 x 10
-1
hz
1.7 x 10
1
seconds
8.24 x 10
-1
hz
omit
Question 3
What was the pendulum's frequency?
1.13 x 10
0
seconds
8.24 x 10
-1
hz
8.82 x 10
-1
hz
1.21 x 10
0
seconds
omit
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?
23 vibrations
6 vibrations
9 vibrations
24 vibrations
omit
Question 5
Based on the formula for a simple pendulum, how long was the pendulum in this experiment?
3.54 meters
0.32 m
0.28 meters
1.77 meters
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