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Monday, 20 April 2026
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Physics Past Questions and Answers

Topic: Moment of a force

Jamb Physics Questions - Moment of a force

Question 1:
In the diagram above, MN is perpendicular to ON and MR what is the difference between the moment about N of the force of 20 Newtons applied along MP an its moment about 0
  • A Zero
  • B 0.2N.m
  • C 0.4N.m
  • D 0.8N.m
  • E 0.6N.m
View Answer & Explanation
Question 2:
Which of the following machines does NOT apply the lever principle?
  • A Claw hammer
  • B Wheel barrow
  • C Single moving pulley
  • D Sugartongs
  • E Nutcrackers
View Answer & Explanation
Question 3:
Which of the following statements is correct about a machine?
  • A Efficiency of a machine is always greater than I
  • B Efficiency decreases with an increase in friction
  • C Velocity ratio depends on friction
  • D Mechanical advantage increases with an increase in friction
View Answer & Explanation
Question 4:
The S.I unit of moment of a force is
  • A Kgm
  • B µm
  • C Jm
  • D µm\(^{-1}\)
View Answer & Explanation
Question 5:
A force of 5N acts at a point Y on a rod XYZ as shown in this diagram. If XYZ is 2m, what is the moment of the force about point X?
  • A 0Nm
  • B 3Nm
  • C 7Nm
  • D 10Nm
View Answer & Explanation