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Pendulum Lab
Question: What affects the time period of a pendulum?
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16
Pendulum Lab
8/29
Question: What affects the time period of a pendulum?
Notes:
• Pendulum is an object connected to a fix support in such a way that
it is free to swing back and forth under the influence of gravity.
•
Time Period is an amount of time.
• Time Period of a Pendulum is an amount of time an object
requires to make one complete swing.
Pendulum Lab
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Brainstorm with Your Team
What can you change about a pendulum that may have a possible
effect on the time period of a pendulum.
Pendulum Lab
8/29
Distance
Distance
Length of the Pendulum
Weight
Length of the Pendulum
Weight
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16
Pendulum Lab
8/29
Question: What affects the time period of a pendulum?
Notes:
• Pendulum is an object connected to a fix support in such a way that
it is free to swing back and forth under the influence of gravity.
•
Time Period is an amount of time.
• Time Period of a Pendulum is an amount of time an object
requires to make one complete swing.
Hypothesis: If __________, then __________, because _________.
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16
Pendulum Lab
8/29
Question: What affects the time period of a pendulum?
Notes:
• Pendulum is an object connected to a fix support in such a way that
it is free to swing back and forth under the influence of gravity.
•
Time Period is an amount of time.
• Time Period of a Pendulum is an amount of time an object
requires to make one complete swing.
Hypothesis: If __________, then __________, because _________.
Materials: Pencil, String, Paper Clip, Weights, Meter Stick, Timer,
Tape
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Pendulum Lab
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Variables:
• Independent: Weights
• Dependent: Time period
Procedure: Place one weight on the pendulum. Adjust the length of
the pendulum to 30 cm. Pull the pendulum back 25˚. Measure the
time period the pendulum takes to complete 5 swings. Repeat a
total of 5 times. Repeat using 3 and 6 weights.
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Pendulum Lab
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Results:
Weight
1
3
6
T1
T2
T3
T4
T5
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Pendulum Lab
Hypothesis:
Variables:
• Independent: Angle
• Dependent: Time period
Procedure:
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Page
15
Pendulum Lab
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Results:
Angle
Trial 1
(s)
Trial 2
(s)
Trial 3
(s)
Trial 4
(s)
Trial 5
(s)
Average
(s)
60
5.93
6.40
6.80
6.01
6.10
6.25
75
5.93
6.08
6.41
6.21
6.30
6.19
80
6.03
6.01
5.96
6.16
6.08
6.05
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Pendulum Lab
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Hypothesis: If I (increase/decrease) the length of the pendulum,
then the time period will (increase/decrease, _________), because
________.
Variables:
• Independent: Length of the pendulum
• Dependent: Time period
Procedure: Adjust the length of the pendulum to 35 cm. Put 3
weights on the pendulum. Pull the pendulum back 50 ˚. Measure
the time period the pendulum takes to complete 5 swings. Repeat a
total of 5 times. Repeat using lengths 45 cm and 55 cm.
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Pendulum Lab
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Results:
Length
Trial 1
(s)
Trial 2
(s)
Trial 3
(s)
Trial 4
(s)
Trial 5
(s)
Average
(s)
35 cm
6.70
6.20
6.45
6.21
6.26
6.37
45 cm
6.65
7.10
6.59
6.51
6.38
6.63
55 cm
6.06
7.30
6.15
7.45
7.60
6.91
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Pendulum Lab
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Conclusion:
Write a proper lab conclusion. This should be a solid PARAGRAPH
and include…
• What was the experiment?
• What was your hypotheses?
• What were the results?
• What were some problems faced?
• Was your hypotheses supported or nullified?