Practice Problems
Frequency and Period #2
Topics:
On this worksheet you will examine properties of a simple pendulum, vibration graphs, and graphs of Period
2
vs Length.
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omit
Question 1
During an experiment, data is collected on the vibrations of a simple pendulum. A graph of
Period
2
vs Length
is plotted and forms a linear graph with a slope of
4.09
and a y-axis intercept of
0.06
. Use the fact that the numerical value of the slope represents 4π
2
/g to determine the value of gravity in the lab room.
9.44 m/sec
2
9.65 m/sec
2
3.07 m/sec
2
38.61 m/sec
2
omit
Question 2
If the accepted value for gravity at sea level is 9.8 m/sec
2
, what was the percent error for this group's experiment?
7.005%
31.08%
1.506%
1.529%
omit
Question 3
According to the data summarized by the group's regression line in
Question #1
, determine the frequency of a pendulum that was 95 cm long?
0.0507 hz
0.0739 hz
0.253 hz
0.503 hz
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Question 4
How would the period of a 73 cm pendulum compare to the period of the pendulum in
Question #3
?
It would be smaller.
It would be greater.
It would be the same.
omit
Question 5
What is meant by the term pendulum bob?
It represents the angle from which a pendulum is released.
The mass attached to the end of a simple pendulum.
It represents a synonym for a pendulum's frequency.
It represents the pivot point from which a pendulum vibrates.
none of the four other statements listed is a correct answer.
omit
Question 6
What would be the correct units to measure the slope of the regression line described in
Question #1
?
L/T
2
sec
2
/m
m/sec
2
T
2
/L
omit
Question 7
What is the frequency of a pendulum whose vibration graph is shown below if its 1st trough occured at 6.95 seconds and its last trough occured at 47.95 seconds .
5.857 x 10
0
hz
0.195 hz
0.167 hz
0.171 hz
5.125 x 10
0
hz
omit
Question 8
Using the equation T = 2
p
SQRT(L/g) what would be the length of the pendulum in
Question #7
?
5.86 meter
6.52 meter
8.52 meters
2.92 meter
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