Simple Pendulum (Lab Report)

Introduction:
Aim: To find the relationship between the length of a simple pendulum and the period of oscillation.
Research question: How does the string length of the pendulum affect the period of oscillation?
Prediction: The longer the string, the longer it will take to make one complete oscillation.
Variables:
Independent variable: Length (L).
Dependent variable: Period of oscillation (T).
Controlled variable: Mass of the plasticine.
Tools & Materials:
Stopwatch.
Ruler.
String.
Plasticine.
Ring Stand.
Pen.
Paper.
Highlighter.
Method:
1. I took the highlighter and put it on the table beside the ring stand so I can control my angle every time I swing the string that has the plasticine at its end.
2. I measured the length of the string 8 times because every time I decrease its length.
3. I take the stopwatch in my hand to record the time of the pendulum doing 10 times a whole complete oscillation.
4. I wrote down every time I record a time on my sheet of paper so that I don’t forget.

Raw data:

1
2
3
4
5
6
7
8

12.22 s
12.03 s
11.36 s
11.13 s
10.60 s
10.14 s
9.68 s
9.17 s
T 10 (±0.01)
12.25 s
11.95 s
11.64 s
11.14 s
10.72 s
10.06 s
9.63 s
9.28 s

12.53 s
11.89 s
11.66 s
11.19 s
10.55 s
10.20 s
9.76 s
9.27 s

1.222 s
1.203 s
1.136 s
1.113 s
1.060 s
1.014 s
0.968 s
0.917 s
T= T10/10
1.225 s
1.195 s
1.164 s
1.114 s
1.072 s
1.006 s
0.963 s
0.928 s
(±0.001)
1.253 s
1.189 s
1.166 s
1.119 s
1.055 s
1.020 s
0.976 s
0.927 s
(±0.1)
37.9 cm
34.6 cm
31.9 cm
29.1 cm
26.3 cm
24.2 cm
21.1 cm
18.2 cm
Length
In meters (m) :
In meters (m) :
In meters (m) :
In meters (m) :
In meters (m) :
In meters (m) :
In meters (m) :
In meters (m) :
(±0.001)
0.379 m
0.346 m
0.319 m
0.291 m
0.263 m
0.242 m
0.211 m
0.182 m
(T10/10) Average
1.233
1.196
1.155
1.115
1.062
1.013
0.969
0.924
Uncertainty (max - min/2)
0.016
0. 007
0.015
0.003
0.009
0.007
0.007