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 is the principle behind the functioning of a Vernier caliper?

2 / 30

2. Which physical quantity is measured in kilograms or grams?

3 / 30

3. Which unit of mass is used in scientific research and precise measurements due to its stability and reproducibility?

4 / 30

4. Which measuring tool is commonly used in carpentry for measuring and marking lengths?

5 / 30

5. Express Avogadro number mol⁻¹ in units of kmol⁻¹.

6 / 30

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

7 / 30

7. Which SI base unit measures the time taken by an event?

8 / 30

8. Which of the following is a unit of the derived quantity of velocity?

9 / 30

9. What is the dimensional formula for power?

10 / 30

10. Which unit of time is approximately equal to 365.25 days?

11 / 30

11. Which property of an object is a vector quantity?

12 / 30

12. Using dimensional analysis, find exponents in (time for a viscous effect) so that dimensions reduce to time.

13 / 30

13. How do standard units contribute to scientific advancements?

14 / 30

14. Which advantage of the SI system supports advancements in technology and innovation?

15 / 30

15. Which ancient civilization used a decimal system of measurement?

16 / 30

16. Which technique for measuring large distances uses radio waves to determine the distance to an object?

17 / 30

17. Which of the following pairs correctly matches a derived quantity with its corresponding SI unit?

18 / 30

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

19 / 30

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

20 / 30

20. Which physical quantity is represented by the unit "Joule" in dimensional analysis?

21 / 30

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

22 / 30

22. Which measuring tool is suitable for measuring the thickness of a sheet of paper?

23 / 30

23. Which SI prefix denotes ?

24 / 30

24. Which technique for measuring large distances involves using a laser beam to determine the distance to a target?

25 / 30

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

26 / 30

26. Which instrument is used to measure the dimensions and profiles of microstructures with high precision and depth resolution?

27 / 30

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

28 / 30

28. What is the derived unit for the quantity of force in the SI system?

29 / 30

29. Which SI base unit measures the amount of a substance?

30 / 30

30. Which measuring tool is most suitable for measuring the thickness of a sheet of metal?

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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. What is the SI unit for the derived quantity of work?

2 / 50

2. Which technique for measuring large distances is used in meteorology for measuring the distance and direction of storm cells?

3 / 50

3. The slope of vs is measured as . If , what is the relative uncertainty in predicted at a fixed ?

4 / 50

4. Which instrument is preferred for measuring mass in educational settings due to its simple operation and clear visual indication?

5 / 50

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

6 / 50

6. Compute with sig-fig rules.

7 / 50

7. Which instrument measures elapsed time with precision down to fractions of a second?

8 / 50

8. Which unit of length is equal to 1000 meters?

9 / 50

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

10 / 50

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

11 / 50

11. Which unit of time is approximately equal to 365.25 days?

12 / 50

12. Which instrument is used to measure the dimensions and alignment of very small structures in integrated circuits and microdevices?

13 / 50

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

14 / 50

14. Which of the following is a base quantity in the International System of Units (SI)?

15 / 50

15. Which unit of time is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of cesium-133?

16 / 50

16. In which situation would dimensional analysis be least useful?

17 / 50

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

18 / 50

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

19 / 50

19. Convert 8000 milliliters to liters.

20 / 50

20. How does the SI system contribute to reducing errors in scientific calculations?

21 / 50

21. What is the full form of SI units?

22 / 50

22. Which non-SI unit is used to measure frequency?

23 / 50

23. Which of the following is a derived quantity in the SI system?

24 / 50

24. Round the product to the correct significant figures.

25 / 50

25. Which unit of mass is equal to one-thousandth of a kilogram?

26 / 50

26. Which unit of mass is equivalent to grams?

27 / 50

27. What is the SI unit of luminous intensity?

28 / 50

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

29 / 50

29. Which SI base unit measures the temperature of a system?

30 / 50

30. Which unit of length is larger than a kilometer?

31 / 50

31. Which instrument was historically used for measuring time at sea before modern navigation technologies?

32 / 50

32. Why are measurements essential in scientific experiments?

33 / 50

33. Which method involves using quality control measures to monitor and improve the accuracy of measurements over time?

34 / 50

34. Why is it important to use standard units in scientific measurements?

35 / 50

35. How do standard units contribute to public health initiatives?

36 / 50

36. Which unit of length is equal to 0.01 meters?

37 / 50

37. Which unit of time is commonly used for measuring short intervals, such as the duration of a heartbeat?

38 / 50

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

39 / 50

39. Which instrument measures time by the flow of sand through a narrow opening?

40 / 50

40. What is the dimensional formula for acceleration?

41 / 50

41. Which measuring tool is suitable for measuring the thickness of a sheet of paper?

42 / 50

42. How long does light take to travel 1 AU m?

43 / 50

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

44 / 50

44. Which of the following represents a correct pair of a fundamental quantity and its corresponding unit?

45 / 50

45. If a distance is measured in meters and time in seconds, what is the resulting unit for speed in dimensional analysis?

46 / 50

46. Which instrument is suitable for measuring the mass of objects ranging from small items to large quantities with high accuracy?

47 / 50

47. How do standard units contribute to scientific advancements?

48 / 50

48. Which of the following is a unit of the derived quantity of velocity?

49 / 50

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

50 / 50

50. The least count of a vernier is 0.1 mm. If 25 vernier divisions coincide with 24 main divisions, what is one main scale division (MSD)?

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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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