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Saturday, 15 August 2026
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Physics Past Questions and Answers

Topic: Interpretation of area under the force-distance curve

Jamb Physics Questions - Interpretation of area under the force-distance curve

Question 6:
The diagram above show s the force-extension curve of a piece of wire. The energy stored when the wire is stretched from E to F is
  • A 7.5 x 10<sup style='font-size: smaller;'>-3</sup>J
  • B 2.5 x 10<sup style='font-size: smaller;'>-3</sup>J
  • C 1.5 x 10<sup style='font-size: smaller;'>-2</sup>J
  • D 7.5 x 10<sup style='font-size: smaller;'>-1</sup>J
View Answer & Explanation
Question 7:
A boy drags a bag of rice along a smooth horizontal floor with a force of 2N applied at the angle of 60o to the floor.

The work done after a distance of 3m is
  • A 3 J
  • B 4 J
  • C 5 J
  • D 6 J
View Answer & Explanation
Question 8:
The diagram above represents the graph of the force F applied in stretching a spiral spring against the corresponding extension (X). The force constant of the spring is
  • A 20 Nm<sup style='font-size: smaller;'>-1</sup>
  • B 40 Nm<sup style='font-size: smaller;'>-1</sup>
  • C 30 Nm<sup style='font-size: smaller;'>-1</sup>
  • D 10 Nm<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation
Question 9:
The potential energy in an elastic string of force constant k, which has an extension X is?
  • A KX
  • B KX\(^{2}\)
  • C ½KX\(^{2}\)
  • D ½K
View Answer & Explanation