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Sunday, 16 August 2026
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Physics Past Questions and Answers

Topic: Mass

Jamb Physics Questions - Mass

Question 11:
A man stands on a spring scale placed in a lift. The lift descends at constant velocity. As a result, the scale reads a weight
  • A Greater than the weight of the man
  • B The same as the weight of the man
  • C Of zero
  • D Less than the weight of the man
  • E Greater than the weight of the man by 1kg
View Answer & Explanation
Question 12:
The accurate measurement of the relative density of substances in powder or granular form can be done using a beam balance and a
  • A Pipette
  • B Burette
  • C Measuring cylinder
  • D Density
  • E Bottle
View Answer & Explanation
Question 13:
A hydrometer is an instrument for measuring the
  • A Depth of water in a vessel
  • B Relative density of a liquid by the method of flotation
  • C Relative dendity of a liquid by finding the apparent loss in weight
  • D Relative humidity of the air
  • E Atmospheric pressure when the air is humid
View Answer & Explanation
Question 14:
A 10g mass placed on the pan of a spring balance causes an extension of 5cm. If a 15g mass is placed on the pan of the same spring balance, the extension is
  • A 3.3cm
  • B 6.5cm
  • C 7.5cm
  • D 10.8cm
  • E 15.0cm
View Answer & Explanation
Question 15:
A Uniform beam PQ of mass 20kg and length 5m is balanced as shown above, a man of weight 800N stands at M such that QM = 2m. The reaction at P and Q respectively are(take g = 10ms-2)
  • A 300N and 500N
  • B 420N and 580N
  • C 220N and 380N
  • D 580N and 420N
  • E 382N and 220N
View Answer & Explanation