A 013 n cm b 014 n cm c 019 n cm d 025 n cm 16 the 17

A 0.13 N / cm B 0.14 N / cm C 0.19 N / cm D 0.25 N / cm
16 The
17 A student wishes to determine the spring constant of a spring where it obeys Hooke’s law.
Springs, extension and Hooke's Law IGCSE Physics
PISJ-ES PHYSICS DEPARTMENT - Y9 Page 8

Different loads are hung from the spring and its length is measured for each different load.
The graph shows how its length varies with load.
4.0
3.0
2.0
1.0
0
0 4 8 12 16
length of
spring / cm
weight of
load / N
20
What is the value of the spring constant?
An experiment is done to determine the spring constant for a spring.
D 5.0 N / cm
18
Springs, extension and Hooke's Law IGCSE Physics
A load is hung from the spring and the extension of the spring is measured.
Which calculation is used to calculate the spring constant?
19 An experiment is carried out to determine the spring constant for a spring that obeys Hooke’s law.
B
C
D
PISJ-ES PHYSICS DEPARTMENT - Y9 Page 9

Which graph correctly shows the extension of the wire plotted against load?
20 10 30 0
0
40
60
20
load/N
A
extension/cm
20 10 30 0
0
2
3
1
load/N
B
extension/cm
20 10 30 0
0
4
6
2
load/N
C
extension/cm
20 10 30 0
50.0
54.1
56.3
52.1
load/N
D
extension/cm
load / N 0 10 20 30
50.0 52.1 54.1 56.3 length / cm
20 The table below shows the length of a wire as the load on it is increased.
Springs, extension and Hooke's Law IGCSE Physics
PISJ-ES PHYSICS DEPARTMENT - Y9 Page 10