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Wednesday, 28 October 2026
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Physics Past Questions and Answers

Jamb 1994 Physics Questions

Question 6:
An object of mass 50kg is released from a height of 2m.Find the kinetic energy just before it strikes the ground
  • A 250J
  • B 1000J
  • C 10 000J
  • D 100 000J
View Answer & Explanation
Question 7:
A cone in an unstable equilibrium has its potential energy
  • A Decreased
  • B Increased
  • C Unchanged
  • D Oscillating
View Answer & Explanation
Question 8:
Calculate the magnitude of the force required to just move a 20kg object along a horizontal surface if the coefficient of friction is 0.2. [g = 10ms-2]
  • A 400.0N
  • B 40.0N
  • C 4.0N
  • D 0.4N
View Answer & Explanation
Question 9:
Calculate the velocity ratio of a screw jack of pitch 0.3cm if the length of the tommy bar is 21cm
  • A \(\frac{1}{140}\)\(\pi\)
  • B 14\(\pi\)
  • C 70\(\pi\)
  • D 140\(\pi\)
View Answer & Explanation
Question 10:
A force of 15N stretches a spring to a total length of 30cm. An additional force of 10N stretches the spring 5cm further. Find the natural length of the spring
  • A 25.0cm
  • B 22.5cm
  • C 20.0cm
  • D 15.0cm
View Answer & Explanation