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CAIE IGCSE Physics 1.5.1.2 Load Extension Graphs for an Elastic Questions

Practise stating Hooke’s law, calculating extension, load or spring length from force-extension data, and interpreting spring graphs in Cambridge IGCSE Physics questions.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • State Hooke’s law, calculate extension or load from force-extension data, and interpret spring graphs.

CAIE IGCSE Physics 1.5.1.2 Load Extension Graphs for an Elastic Questions question 1

[Maximum number: 1]

A force is a vector quantity.

A student suspends a spring from a clamp stand and measures the length l0l_{0} of the spring.

Fig. 2.1 shows the apparatus.

Fig. 2.1 (not to scale)

Fig. 2.1 (not to scale)

The student then suspends loads of different weights from the spring and measures the length of the spring for each load. He then plots a graph of the length of the spring against weight.

Fig. 2.2 is the graph that the student plots.

Fig. 2.2

Fig. 2.2

Using Fig. 2.2, determine the initial length l0l_{0} of the spring.

l0=l_{0}=
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