JAMB Physics questions: Measurements and units

14 questions with answers and explanations. Tap an option to check yourself.

1. Question 1· Measurements and units· JAMB

   The dimensions of momentum are

   • AML²T⁻¹
   • BMLT⁻²
   • CMLT⁻¹
   • DML⁻¹T⁻¹

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   Explanation and discussion

2. Question 2· Measurements and units· JAMB

   Which of the following is a fundamental quantity?

   • Adensity
   • Bvelocity
   • Cforce
   • Dtime

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   Explanation and discussion

3. Question 3· Measurements and units· JAMB

   The watt expressed in SI base units is

   • Akg m s⁻¹
   • Bkg m s⁻²
   • Ckg m² s⁻²
   • Dkg m² s⁻³

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   Explanation and discussion

4. Question 4· Measurements and units· JAMB

   Which instrument would measure the diameter of a thin wire most accurately?

   • Ameasuring tape
   • Bvernier calipers
   • Cmetre rule
   • Dmicrometer screw gauge

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   Explanation and discussion

5. Question 5· Measurements and units· JAMB

   Which of the following quantities has the same SI unit as energy?

   • Apressure
   • Bpower
   • Cmomentum
   • Dmoment of a force

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   Explanation and discussion

6. Question 6· Measurements and units· JAMB

   Which of the following is NOT a fundamental SI unit?

   • Amole
   • Bkelvin
   • Campere
   • Dnewton

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   Explanation and discussion

7. Question 7· Measurements and units· JAMB

   The dimensions of pressure are:

   • AMLT⁻²
   • BML⁻¹T⁻²
   • CML²T⁻²
   • DML⁻²T⁻¹

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   Explanation and discussion

8. Question 8· Measurements and units· JAMB

   The smallest reading that can be taken with a standard pair of vernier calipers is

   • A0.001 cm
   • B0.01 cm
   • C0.1 cm
   • D1 cm

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   Explanation and discussion

9. Question 9· Measurements and units· JAMB

   A micrometer screw gauge shows 5.5 mm on the sleeve and 28 divisions on the thimble, each division 0.01 mm. The reading is

   • A5.28 mm
   • B5.528 mm
   • C8.30 mm
   • D5.78 mm

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   Explanation and discussion

10. Question 10· Measurements and units· JAMB

    The dimensions of force are

    • AMLT⁻¹
    • BML²T⁻²
    • CMLT⁻²
    • DML⁻¹T⁻²

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    Explanation and discussion

11. Question 11· Measurements and units· JAMB

    The dimensions of work are

    • AMLT⁻²
    • BML²T⁻²
    • CML²T⁻¹
    • DML⁻¹T⁻²

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    Explanation and discussion

12. Question 12· Measurements and units· JAMB

    Which of the following is a derived unit?

    • Akilogram
    • Bsecond
    • Campere
    • Dnewton

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    Explanation and discussion

13. Question 13· Measurements and units· JAMB

    Which pair of quantities has the same dimensions?

    • Awork and the moment of a force
    • Bforce and pressure
    • Cpower and energy
    • Dvelocity and acceleration

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    Explanation and discussion

14. Question 14· Measurements and units· JAMB

    On a micrometer screw gauge, the sleeve reads 5.5 mm and the thimble reads 0.28 mm. What is the reading?

    • A5.78 mm
    • B5.28 mm
    • C8.30 mm
    • D5.53 mm

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    Explanation and discussion