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NABTEB Physics Practice Questions & Explanations

Try 20 of 347+ NABTEB Physics questions as a free quiz — select your answers, submit, and see your score with a full explanation for every one.

  1. 1.
    The S.I. unit of length is?
    Show explanation
    The S.I. base unit of length is the meter (m).
  2. 2.
    Which of the following is a fundamental physical quantity?
    Show explanation
    Mass is a fundamental quantity, while the others are derived quantities.
  3. 3.
    The instrument used to measure length accurately is?
    Show explanation
    A meter rule is used to measure length.
  4. 4.
    The S.I. unit of time is?
    Show explanation
    The SI base unit of time is the second (s).
  5. 5.
    Which of the following is a derived unit?
    Show explanation
    Newton is a derived unit of force.
  6. 6.
    The S.I. unit of force is?
    Show explanation
    Force is measured in Newton (N).
  7. 7.
    Which instrument is used to measure temperature?
    Show explanation
    A thermometer measures temperature.
  8. 8.
    The S.I. unit of mass is?
    Show explanation
    The SI unit of mass is kilogram (kg).
  9. 9.
    Which of the following is NOT a fundamental quantity?
    Show explanation
    Velocity is a derived quantity.
  10. 10.
    The S.I. unit of velocity is?
    Show explanation
    Velocity is measured in meters per second (m/s).
  11. 11.
    The instrument used to measure current is?
    Show explanation
    An ammeter measures electric current.
  12. 12.
    Which of the following quantities is scalar?
    Show explanation
    Speed has magnitude only, making it a scalar quantity.
  13. 13.
    The S.I. unit of energy is?
    Show explanation
    Energy is measured in joules (J).
  14. 14.
    Which of the following is used to measure mass?
    Show explanation
    A spring balance can measure mass (weight-related measurement).
  15. 15.
    The prefix 'kilo' means?
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    Kilo means 1000 times the base unit.
  16. 16.
    Which of the following is a vector quantity?
    Show explanation
    Force has both magnitude and direction.
  17. 17.
    The S.I. unit of pressure is?
    Show explanation
    Pressure is measured in pascals (Pa).
  18. 18.
    Which instrument is used for measuring very small lengths?
    Show explanation
    Micrometer screw gauge measures small dimensions accurately.
  19. 19.
    The derived unit of area is?
    Show explanation
    Area is length × breadth, so its unit is m².
  20. 20.
    Which of the following best describes accuracy in measurement?
    Show explanation
    Accuracy refers to how close a measurement is to the true value.
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