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CAIE A-Level Physics AS 6.2.4 Ep 1 2 Fx 1 2 Kx2 for a Material Deformed Within Its Limit of Questions

Interpret the area under a force–extension graph as elastic potential energy stored.

Syllabus
2028–2030
Course
Physics 9702
Level
AS

Exam points

  • Interpret the area under a force–extension graph as elastic potential energy stored.

CAIE A-Level Physics AS 6.2.4 Ep 1 2 Fx 1 2 Kx2 for a Material Deformed Within Its Limit of Questions question 1

[Maximum number: 1]

A wire is fixed at one end and is extended by a force F1F_{1} acting on the other end. This causes the wire to have an elastic potential energy of 0.15 J .

The force applied to the wire is now changed to a force F2F_{2}. This causes the wire to have a new elastic potential energy of 0.60 J .

The wire obeys Hooke's law.
What is the relationship between F1F_{1} and F2F_{2} ?

A

F1=2F2F_{1}=2 F_{2}

B

F1=4F2F_{1}=4 F_{2}

C

2F1=F22 F_{1}=F_{2}

D

4F1=F24 F_{1}=F_{2}

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