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CAIE A-Level Physics AS 6.2.2 The Area Under the Force Extension Graph Represents the Work Done Questions

Interpret force–extension graphs, including elastic limit, yield, plastic deformation and fracture.

Syllabus
2028–2030
Course
Physics 9702
Level
AS

Exam points

  • Interpret force–extension graphs, including elastic limit, yield, plastic deformation and fracture.

CAIE A-Level Physics AS 6.2.2 The Area Under the Force Extension Graph Represents the Work Done Questions question 1

[Maximum number: 2]

Fig. 4.1 shows the variation with extension x of the tensile force F for two wires, G and H, made from the same material.

Fig. 4.1

Fig. 4.1

The elastic limit has not been exceeded for G or H.

For the lines in Fig. 4.1:

explain why the area under the line represents the elastic potential energy of the wire.

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