EXPERIMENT 3
HOOKE’S LAW EXPERIMENT REPORT
Luvhimbi Nakisani
221788042
Department of Chemical Engineering
Bachelor of Engineering technology in Chemical Engineering
Engineering Physics 1
221788042@mycput.ac.za
Mr S.P Noncolela
1
Aim
To investigate Hooke’s law (The relation between force and stretch for a spring) and
to determining the spring constant.
Theory
The force applied to a spring is directly proportional to the extension of the spring:
𝐹 = 𝑘𝑥
Apparatus
a. Spring
b. Masses
c. Ruler
Method
a.
b.
c.
d.
The apparatus was set according to the diagram.
A mass was added to the holder and the spring length was recorded.
Another mass was added and recorded the new spring length.
The difference of the previous spring length and the new length was
calculated to calculate the extension(x) of the spring.
e. The above procedure was recorded.
Results and calculations
Mass used (g)
0
Force (N)
0
Spring length
20
Extension (mm)
0
10
0.1
25
5
20
0.2
30
10
30
0.3
35
15
40
0.4
40
20
50
0.5
46
26
2
Force versus Extension
Force versus Extension of spring
30
10
25
30
35
40
46
Strength extension
20
25
30
40
15
50
20
5
10
15
20
26
0,1
0,2
0,3
0,4
0,5
10
5
0
-5
k=
0
10
20
30
40
50
Mass
15−10
0.3−0.2
𝑘 = 50
Conclusion
The spring extended each time a mass was added. This confirms Hooke’s Law
which states that the extension of an elastic object (like a spring) is directly
proportional to the force added. The force and extension of spring is directly
proportional.
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