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Friday, 30 October 2026
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Physics Past Questions and Answers

Jamb 1991 Physics Questions

Question 1:
Which of the following is the most suitable for use as an altimeter?
  • A A mecury barometer
  • B A fortin barometer
  • C A mecury manometer
  • D An aneroid barometer
View Answer & Explanation
Question 2:
A body of weight W N rest on a smooth plane inclined at an angle\(\theta\)o to the horizontal. What is the resolved part of the weight in Newtons along the plane?
  • A W sin\(\theta\)
  • B W cos\(\theta\)
  • C W sec\(\theta\)
  • D W tan\(\theta\)
View Answer & Explanation
Question 3:
A small metal ball thrown vertically upwards from the top of a tower with an initial velocity of 20ms-1. If the ball took a total of 6s to reach ground level, determine the height of the tower [g = 10ms-2]
  • A 60m
  • B 80m
  • C 100m
  • D 120m
View Answer & Explanation
Question 4:
An object moves with uniform speed round a circle. Its acceleration has
  • A Constant magnitude and constant direction
  • B Constant magnitude and varying direction
  • C Varying magnitude but constant direction
  • D Varying magnitude and varying direction
View Answer & Explanation
Question 5:
A body of mass 100g moving with a velocity of 10.0ms-1 collides with a wall. If after collision, it moves with a velocity of 2.0ms-1 in the opposite direction, calculate the change in momentum.
  • A 0.8Ns
  • B 1.2Ns
  • C 12.0Ns
  • D 80.0Ns
View Answer & Explanation