FBISE · Class 9

Class 9 Physics MCQs: Physical Quantities And Measurement

Practice chapter-wise MCQs with answers and explanations. Use the quiz mode for timed online tests.

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Quick revision

Class 9 Physics MCQs Physical Quantities And Measurement are one of the fastest ways to improve your board exam performance — especially when you practice with purpose, revise weak concepts, and learn from explanations.

On Prepzy, you can practice 126 MCQs from “Physical Quantities And Measurement” in Physics for FBISE. Each question is designed to mirror the style, wording, and concept-testing approach used in Pakistani board papers.

Use this chapter page to revise definitions, formulas, and key ideas, then attempt the MCQs in small sets. Track patterns in your mistakes: is it a concept gap, a calculation error, or a misread statement? Fixing the pattern is what raises your score.

If you’re preparing for matric / SSC Part exams, focus on understanding the concept first, then speed. MCQs reward clarity — not memorization. A clear concept turns into fast correct answers.

What to focus on

  • Primary focus: Physical Quantities And Measurement concepts tested in Class 9 Physics
  • Practice with instant answer-checking to reduce repeated mistakes
  • Revise common definitions, units, and standard results before timed practice
  • Aim for accuracy first, then build speed with short quizzes

Study tips

  • Read the question stem first, then scan options for distractors (near-correct choices).
  • If the chapter is formula-heavy, write a mini-formula sheet and revise it before every attempt.
  • After each practice set, re-attempt only the wrong MCQs to convert weak areas into strengths.
  • Mix easy + medium MCQs for momentum, then finish with hard questions for exam readiness.

MCQs (sample)

Showing 25 questions from this chapter. For a full timed test, use “Start online test”.

  1. 1. What is a screw gauge primarily used for?

    • Measuring small lengths
    • Calculating large distances
    • Weighing objects
    • Measuring temperature
    Answer & explanation

    Correct: Measuring small lengths

    A screw gauge is used to measure small lengths, even smaller than vernier calipers.

  2. 2. What is the focus of precision in measurements?

    • Consistency and repeatability of results
    • Closeness to true values
    • Absence of systematic errors
    • Variation in results
    Answer & explanation

    Correct: Consistency and repeatability of results

    Precision focuses on the consistency and repeatability of results.

  3. 3. What does SI stand for in the International System of Units?

    • System International
    • Standard International
    • Systematic International
    • Science International
    Answer & explanation

    Correct: System International

    SI stands for System International, which is the International System of Units.

  4. 4. What is a prefix in the context of numbers?

    • A mechanism to express numbers in power of ten
    • A type of mathematical operation
    • A method to calculate percentages
    • A symbol for addition
    Answer & explanation

    Correct: A mechanism to express numbers in power of ten

    A prefix is defined as a mechanism through which numbers are expressed in power of ten.

  5. 5. What is defined as the uncertainty that arises during the measurement?

    • Error
    • Precision
    • Bias
    • Accuracy
    Answer & explanation

    Correct: Error

    Error refers to the uncertainty that occurs in measurements.

  6. 6. What are the five distinct disciplines of physical sciences mentioned in the content?

    • Physics, chemistry, astronomy, geology, meteorology
    • Physics, biology, chemistry, geology, mathematics
    • Physics, chemistry, biology, geography, meteorology
    • Physics, chemistry, thermodynamics, geology, astronomy
    Answer & explanation

    Correct: Physics, chemistry, astronomy, geology, meteorology

    The text states that the five distinct disciplines are physics, chemistry, astronomy, geology, and meteorology.

  7. 7. What is the purpose of scientific notation?

    • To write very large or small numbers compactly
    • To measure distances in space
    • To convert numbers into fractions
    • To simplify addition and subtraction
    Answer & explanation

    Correct: To write very large or small numbers compactly

    Scientific notation helps represent very large or small numbers in a compact form, making them easier to read and write.

  8. 8. What are scalar quantities described by?

    • Numerical magnitude and direction
    • Numerical magnitude only
    • Direction only
    • Magnitude and area
    Answer & explanation

    Correct: Numerical magnitude only

    Scalar quantities are described only by numerical magnitude with proper unit, without any direction.

  9. 9. What is a measuring instrument?

    • A device for measuring physical quantities
    • A type of ruler only
    • A tool for cutting materials
    • A computer for calculations
    Answer & explanation

    Correct: A device for measuring physical quantities

    A measuring instrument is defined as a device used to measure physical quantities.

  10. 10. What are physical quantities?

    • Quantities that can be measured
    • Quantities that cannot be measured
    • Quantities related to feelings
    • Quantities that only have numerical values
    Answer & explanation

    Correct: Quantities that can be measured

    Physical quantities are defined as those quantities which can be measured.

  11. 11. What is the primary purpose of a vernier caliper?

    • To measure lengths smaller than 1 mm
    • To measure temperature accurately
    • To measure mass of objects
    • To measure electric current
    Answer & explanation

    Correct: To measure lengths smaller than 1 mm

    A vernier caliper is specifically designed to measure lengths smaller than 1 mm.

  12. 12. What defines a significant figure?

    • A number believed to be correct with uncertainty only in the last digit.
    • A number that is always exact without uncertainty.
    • A number that is never significant or useful.
    • A number that is an estimate only.
    Answer & explanation

    Correct: A number believed to be correct with uncertainty only in the last digit.

    A significant figure is defined as a number that is believed to be correct with some uncertainty only in the last digit.

  13. 13. What is the pitch of a screw gauge?

    • Distance traveled by circular scale in one rotation
    • Total number of divisions on circular scale
    • Least count of the screw gauge
    • Diameter of the screw head
    Answer & explanation

    Correct: Distance traveled by circular scale in one rotation

    The pitch is defined as the distance traveled by the circular scale on the linear scale in one rotation.

  14. 14. What does accuracy refer to?

    • Degree of agreement between measurements
    • Closeness to true or accepted values
    • Variation in repeated measurements
    • Consistency of results under the same conditions
    Answer & explanation

    Correct: Closeness to true or accepted values

    Accuracy refers to how close a measured value is to the true or accepted value.

  15. 15. How many base physical quantities are defined in System International (SI)?

    • Seven
    • Five
    • Ten
    • Three
    Answer & explanation

    Correct: Seven

    There are seven base physical quantities in System International (SI).

  16. 16. Which of the following is NOT a prefix listed in the content?

    • Mega
    • Giga
    • Zetta
    • Milli
    Answer & explanation

    Correct: Zetta

    Zetta is not mentioned in the provided prefixes; the correct ones include Mega and Milli.

  17. 17. Which type of error occurs consistently in one direction?

    • Systematic errors
    • Random errors
    • Instrumental errors
    • Measurement errors
    Answer & explanation

    Correct: Systematic errors

    Systematic errors consistently occur in one direction, either positive or negative.

  18. 18. Which discipline is described as the most fundamental of the physical sciences?

    • Chemistry
    • Astronomy
    • Physics
    • Geology
    Answer & explanation

    Correct: Physics

    The content specifies that physics is the most fundamental of all the sciences.

  19. 19. What does the mantissa represent in scientific notation?

    • A number greater than 1 and less than 10
    • A power of ten
    • A very small number
    • A sum of numbers
    Answer & explanation

    Correct: A number greater than 1 and less than 10

    The mantissa in scientific notation is the part of the number that is greater than 1 and less than 10.

  20. 20. Which of the following is NOT a scalar quantity?

    • Distance
    • Speed
    • Velocity
    • Time
    Answer & explanation

    Correct: Velocity

    Velocity is a vector quantity because it requires both magnitude and direction, unlike scalars which only require magnitude.

  21. 21. What is the least count of a metre rule?

    • 1 cm
    • 1 m
    • 1 mm
    • 1 dm
    Answer & explanation

    Correct: 1 mm

    The least count of a metre rule is 1 mm, which is the minimum value that can be measured.

  22. 22. Which of the following is a physical quantity?

    • Length
    • Taste
    • Feeling
    • Color
    Answer & explanation

    Correct: Length

    Length can be defined and measured, therefore it is a physical quantity.

  23. 23. How many scales does a vernier caliper have?

    • One
    • Two
    • Three
    • Four
    Answer & explanation

    Correct: Two

    A vernier caliper consists of two scales: a main scale and a vernier scale.

  24. 24. Which digits are always significant?

    • All NONZERO digits (1-9).
    • Only the digit 0.
    • Any digit including zeros.
    • Only the last digit of a measurement.
    Answer & explanation

    Correct: All NONZERO digits (1-9).

    The reported NONZERO digits (all digits from 1 to 9) are always significant.

  25. 25. How is the least count of a screw gauge calculated?

    • Pitch divided by number of divisions on circular scale
    • Total number of divisions multiplied by pitch
    • Total length divided by total readings
    • Number of readings divided by least count
    Answer & explanation

    Correct: Pitch divided by number of divisions on circular scale

    The least count is calculated by dividing the pitch by the number of divisions on the circular scale.

FAQs

Are these Class 9 Physics MCQs Physical Quantities And Measurement aligned with FBISE?

Yes. The MCQs are organized chapter-wise for FBISE and designed to match board exam patterns. If your teacher has added custom MCQs, they will also appear here.

How many MCQs should I practice from “Physical Quantities And Measurement” each day?

A good daily target is 20–40 MCQs with full review of mistakes. If you’re short on time, do 15 MCQs but read explanations carefully.

What’s the best way to revise this chapter before an exam?

Revise the chapter summary, list your weak sub-topics, then practice MCQs in timed sets. Re-attempt wrong questions after a short break to lock in learning.

Can I take an online test for this chapter?

Yes. Start a chapter quiz to simulate an online test. Use it to improve speed and accuracy under time pressure.

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