Class 11 Physics: Units & Measurements Online Test - Exam

Class 11 Physics — Chapter 2: Units and Measurements Online Test

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Class 11 Physics: Units and Measurements Online Test (Paper 1)

Welcome to Paper 1! This is your foundation to build confidence and get you ready to tackle the challenges ahead.

  • Total Questions: 20
  • Time Allotted: 30 minutes
  • Passing Score: 40%
  • Randomization: No
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 20

1. In dimensional analysis, what is the role of dimensional constants?

2 / 20

2. Which field often uses dimensional analysis to verify the validity of new theoretical models or equations?

3 / 20

3. What does error analysis aim to achieve in experimental measurements?

4 / 20

4. Which ancient timekeeping device uses the flow of water from one container to another to measure time intervals?

5 / 20

5. Which property of an object is used to calculate the force due to gravity?

6 / 20

6. Which unit of time is commonly used for measuring short durations, such as intervals between events?

7 / 20

7. Which unit of mass is equivalent to 1000 milligrams?

8 / 20

8. Which instrument measures the mass of an object electronically using a load cell and a digital display?

9 / 20

9. Which unit of mass is equal to one-thousandth of a gram?

10 / 20

10. Which instrument is used to investigate the topography and properties of materials at sub-nanometer scales?

11 / 20

11. Which instrument is used to measure the precise distance changes in an interferometer setup for highly accurate length measurements?

12 / 20

12. Which technique for measuring large distances involves measuring the time delay between the transmission and reception of a signal bounced off a distant object?

13 / 20

13. Which measuring tool is used for measuring distances both horizontally and vertically in surveying?

14 / 20

14. Which measuring tool is ideal for measuring the diameter of a pipe?

15 / 20

15. Which unit of length is smaller: decimeter or kilometer?

16 / 20

16. Which unit of length is used to measure the height of a tall building?

17 / 20

17. Convert 500 square meters to square kilometers.

18 / 20

18. Which unit of length is equal to meters?

19 / 20

19. Convert 5000 grams to kilograms.

20 / 20

20. Convert 2500 millimeters to meters.

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Class 11 Physics: Units and Measurements Online Test (Paper 2)

Welcome to Paper 2! You’ve mastered the basics, and now it’s time to test your understanding with a more challenging set of questions.

Get new questions on each attempt

  • Total Questions: 30
  • Time Allotted: 45 minutes
  • Passing Score: 50%
  • Randomization: Yes
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 30

1. What does error analysis aim to achieve in experimental measurements?

2 / 30

2. What is the dimensional formula for torque?

3 / 30

3. Which method involves using statistical techniques to identify and reduce errors in experimental data?

4 / 30

4. What is the SI base unit for the quantity of substance?

5 / 30

5. A star has parallax arcsec. Find its distance in meters (1 pc m).

6 / 30

6. Which of the following best describes a systematic error?

7 / 30

7. What is the fundamental difference between weight and mass?

8 / 30

8. What is the SI unit of luminous flux?

9 / 30

9. Which SI base unit measures the intensity of an electric current?

10 / 30

10. What is the primary benefit of using standard units in education?

11 / 30

11. A caliper with LC = 0.02 mm reads MSR = 12.00 mm and VSR = 18. Zero error is −0.04 mm. Find the true length.

12 / 30

12. Which instrument is used to measure the exact distance changes between two points with minimal interference from external factors?

13 / 30

13. How does the SI system promote efficiency in healthcare practices?

14 / 30

14. Which of the following is a fundamental quantity in the SI system?

15 / 30

15. Which measuring tool is commonly used in engineering workshops for precise measurements of machine parts?

16 / 30

16. Which factor is crucial in error propagation, affecting how uncertainties combine and influence the final measurement result?

17 / 30

17. A measurement is reported as m. How many significant figures?

18 / 30

18. Which instrument measures the mass of an object by applying the principle of Hooke's law?

19 / 30

19. Which instrument is used to measure the height variations and surface roughness of materials at the atomic level?

20 / 30

20. Which unit of time is commonly used for measuring short durations, such as intervals between events?

21 / 30

21. Why is dimensional analysis not suitable for predicting the outcomes of chaotic systems?

22 / 30

22. Which instrument measures time using the position of the sun's shadow?

23 / 30

23. Which unit of time is equal to 7 days?

24 / 30

24. Who introduced the concept of a standardized system of weights and measures in ancient times?

25 / 30

25. Who developed the first known unit of length based on body parts?

26 / 30

26. What fundamental physical constant is used to define the meter in the SI system?

27 / 30

27. What is the significance of derived quantities in scientific measurements?

28 / 30

28. Which measuring tool is used for measuring distances both horizontally and vertically in surveying?

29 / 30

29. Which instrument is used to study the detailed structure and composition of materials by scanning a focused beam of electrons over the sample surface?

30 / 30

30. If m/s² and m, compute and its absolute uncertainty.

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Class 11 Physics: Units and Measurements Online Test (Paper 3)

Welcome to Paper 3! You’ve warmed up—now it's time to step up your game and conquer the challenge with tougher questions!

Earn a certificate upon passing

Get new questions with every attempt

  • Total Questions: 50
  • Time Allotted: 75 minutes
  • Passing Score: 70%
  • Randomization: Yes
  • Certificate: Yes
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 50

1. Which method involves using identical experimental conditions for different measurements to reduce systematic errors?

2 / 50

2. How do standard units contribute to disaster preparedness and response efforts?

3 / 50

3. Perform the following calculation with the correct number of significant figures: .

4 / 50

4. Which method involves adjusting measuring instruments to a known standard to minimize instrumental errors?

5 / 50

5. How does the SI system contribute to standardizing quality assurance practices in manufacturing?

6 / 50

6. Which type of error is attributed to mistakes or inconsistencies in the way measurements are taken?

7 / 50

7. Which non-SI unit is used to measure information storage?

8 / 50

8. What is the dimensional formula for momentum?

9 / 50

9. Convert 1000 joules to kilojoules.

10 / 50

10. Who introduced the concept of the metric system during the French Revolution?

11 / 50

11. What happens to the mass of an object when taken to the Moon from Earth?

12 / 50

12. Which unit of mass is often used in manufacturing and commerce for bulk goods such as grains and metals?

13 / 50

13. A vernier caliper has least count 0.01 cm. Main scale reading is 2.30 cm and 6th vernier division coincides. Zero error is −0.02 cm. What is the corrected length?

14 / 50

14. Why does dimensional analysis often struggle with fluid dynamics problems?

15 / 50

15. Which measuring tool is ideal for measuring the diameter of a pipe?

16 / 50

16. Which type of uncertainty arises from limitations in the measuring instruments and the methods used?

17 / 50

17. Which unit of mass is often used for expressing the weight of small items like jewelry and precious metals?

18 / 50

18. Which instrument is used to measure the exact distance changes between two points with minimal interference from external factors?

19 / 50

19. Which quantity is a measure of the inertia of an object?

20 / 50

20. In which of the following ways does the measurement system help in international scientific communication?

21 / 50

21. Which technique for measuring large distances is based on measuring the angles between a baseline and the lines of sight to distant objects?

22 / 50

22. Which instrument is used to observe and measure the surface topography and properties of materials at atomic and molecular levels?

23 / 50

23. Which factor is crucial in error propagation, affecting how uncertainties combine and influence the final measurement result?

24 / 50

24. What is the result of with correct significant figures?

25 / 50

25. On which planet would the weight of an object be the highest compared to its mass on Earth?

26 / 50

26. Which instrument is used to investigate the surface topography and properties of materials at atomic resolution?

27 / 50

27. In which year did the Metric Act introduce the metric system in the United Kingdom?

28 / 50

28. Calculate with correct significant figures.

29 / 50

29. Convert m to micrometers.

30 / 50

30. Which of the following is the SI unit for the derived quantity of electric charge?

31 / 50

31. Which unit of length is larger: kilometer or meter?

32 / 50

32. Which SI base unit measures the intensity of a sound wave?

33 / 50

33. Which instrument is used to measure the force interactions between a sharp probe and a material's surface at the nanoscale?

34 / 50

34. What is the main advantage of using the metric system for scientific measurements?

35 / 50

35. Which instrument provides measurements of mass quickly and accurately, displaying results digitally?

36 / 50

36. Which non-SI unit is used to measure pressure?

37 / 50

37. Which instrument is used to observe the arrangement and movement of atoms on a material's surface?

38 / 50

38. Which unit of length is commonly used to describe the width of a book?

39 / 50

39. What is the value of the SI prefix kilo-?

40 / 50

40. Convert m to angstroms (1 Å = m).

41 / 50

41. Which instrument measures the mass of an object electronically using a load cell and a digital display?

42 / 50

42. Which SI base unit measures the intensity of an electric current?

43 / 50

43. Which of the following units is used to measure solid angle?

44 / 50

44. Which SI prefix denotes ?

45 / 50

45. Which measuring tool is used by jewelers for measuring the diameter of gemstones?

46 / 50

46. What is the fundamental unit of mass in the International System of Units (SI)?

47 / 50

47. What does dimensional analysis rely on to ensure the correctness of physical equations?

48 / 50

48. The wavelength nm. Convert to meters with absolute uncertainty.

49 / 50

49. Which non-SI unit is used to measure force?

50 / 50

50. Convert 5000 grams to kilograms.

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Practice Units and Measurements MCQs
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Class 11 Physics: Chapter 2 Units & Measurements — Online Test

Class 11 Physics: Units & Measurements Online Test gives you a true exam-style MCQ experience. Solve timed questions, get instant results, review answers, and—on clearing Paper 3—download your certificate. The tests are free, NCERT/CBSE-aligned, and allow unlimited retakes. Use them like a quick chapter-wise mock test / quiz before school exams or competitive exams such as JEE and NEET.

Feeling the pressure of measurement errors, significant figures, or dimensional analysis? You’re not alone. This page is your calm practice space for Units & Measurements. Take short, focused MCQ online tests on your phone or laptop, see what’s working, fix what’s not, and build confidence—step by step. When you’re ready, aim for Paper 3 and earn a certificate.

What’s inside this Units & Measurements Online Test?

Three exam-style MCQ papers for Chapter 2 (Units & Measurements):

  • Paper 1 (Easy) — Foundation: 20 questions · 30 min · Pass 40% · Fixed set
  • Paper 2 (Medium) — Mixed: 30 questions · 45 min · Pass 50% · Randomized from a large pool
  • Paper 3 (Hard) — Challenge: 50 questions · 75 min · Pass 70% · Randomized + Certificate on pass

Note: You’ll see fresh mixes of questions on every attempt in Paper 2 & 3. All papers are timed, auto-evaluated, and show your score with answer review.

Key topics covered (Units & Measurements)

  • International System of Units (SI) — base & derived units, unit conversions
  • Measurement of length, mass, and time — vernier calipers, screw gauge, spherometer
  • Accuracy vs precision — least count, resolution
  • Errors & Uncertainty — systematic & random, absolute/relative/percentage error
  • Error propagation — addition/subtraction/multiplication/division rules
  • Significant figures — rules & rounding
  • Dimensions & dimensional analysis — checking homogeneity, deriving relations
  • Order of magnitude & estimation

How the online test works

Quick flow: Pick a paper → answer MCQs within time → submit → see score + analysis. Pass Paper 3 to download the certificate.

On-screen experience

  • MCQs: One question, four options
  • Timer: P1: 30 min • P2: 45 min • P3: 75 min
  • Navigation: Next/Prev buttons and question map
  • Result page: score %, correct/incorrect/unanswered, time taken, and answer review
  • Retake: Restart any paper anytime (fresh mixes in P2 & P3)

Marking & pass criteria

  • Scoring: +1 for correct, 0 for incorrect (no negative marking)
  • Passing marks: Paper 1 — 40% • Paper 2 — 50% • Paper 3 — 70%
  • Randomization: Paper 2 & 3 pull questions from a larger pool on each attempt; Paper 1 stays fixed

Who should take this test?

  • CBSE/NCERT Class 11 students revising Chapter 2 (Units & Measurements)
  • JEE/NEET foundation aspirants building accuracy & speed in basic measurement concepts
  • Bridge learners revising fundamentals before Class 12
  • Teachers & tutors needing ready-to-use chapter tests
  • International curricula (IGCSE/IB/AP) needing objective practice on universal measurement ideas

Why this online test helps

  • Exam feel: timed papers, pass %, auto-submit
  • Instant feedback: know your strengths/weaknesses immediately
  • Step-up difficulty: Easy → Mixed → Hard (+ certificate)
  • Unlimited attempts: fresh mixes in P2 & P3, practice till confident
  • Free & safe: no payment, no login required

Smart study plan for this chapter

  • Step 1 — Concept check: Attempt Paper 1 after reading the chapter (aim ≥ 40%). Note weak subtopics (e.g., error propagation, sig. figs.).
  • Step 2 — Build accuracy: Attempt Paper 2 (randomized). Focus on recurring mistakes.
  • Step 3 — Exam readiness: Attempt Paper 3 strictly within time (target ≥ 70%).
  • Step 4 — Review & revise: Study the answer review; keep a short error-log for repeated pitfalls.
  • Step 5 — Retention: Re-attempt after 24–48 hours to cement learning.

Important notes before you start

  • Do not refresh or close the tab during the test
  • Best experience: latest Chrome/Edge, stable internet, distraction-free screen
  • Privacy & safety: 100% free—ignore any payment requests

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