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. Which unit of length is equal to 10 meters?

2 / 30

2. What is the dimensional formula for power?

3 / 30

3. Which measuring tool is commonly used by machinists for measuring the thickness of metal sheets?

4 / 30

4. Using m/s, compute the time for a radar pulse to go to the Moon and back (distance m).

5 / 30

5. Compute with sig-fig rules.

6 / 30

6. What is the SI base unit for measuring the luminous intensity of light?

7 / 30

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

8 / 30

8. Which technique for measuring large distances is suitable for measuring the height of buildings and structures from ground level?

9 / 30

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

10 / 30

10. Which non-SI unit is used to measure radiation dose?

11 / 30

11. Which unit of mass is equivalent to grams?

12 / 30

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

13 / 30

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

14 / 30

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

15 / 30

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

16 / 30

16. Which measuring tool is best suited for measuring the thickness of a book?

17 / 30

17. What is the dimensional formula for electric charge?

18 / 30

18. What is the SI derived unit for pressure?

19 / 30

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

20 / 30

20. Which aspect of standard units makes them essential for regulatory compliance?

21 / 30

21. Which organization is responsible for maintaining and updating the International System of Units (SI)?

22 / 30

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

23 / 30

23. Which fundamental quantity is involved in defining the derived unit of frequency?

24 / 30

24. Find the number of significant figures in the result of .

25 / 30

25. Which instrument is used to measure very small lengths with high accuracy?

26 / 30

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

27 / 30

27. Which unit of mass is used for expressing the weight of small objects and personal items?

28 / 30

28. Why do engineers and manufacturers use standard units in product design?

29 / 30

29. What is the dimensional formula for momentum?

30 / 30

30. Convert C to statcoulomb (1 C ≈ statC).

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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. The density of a metal cylinder is measured: , , . Find and its percentage error.

2 / 50

2. Which instrument is used to measure very small lengths with high accuracy?

3 / 50

3. A meter scale has a systematic error of +1.0 mm. The true length of a rod if the observed length is 50.00 cm is:

4 / 50

4. Which unit of length is larger: meter or centimeter?

5 / 50

5. Which technique for measuring large distances involves using sound waves to determine the distance to an object?

6 / 50

6. Find the number of significant figures in the result of .

7 / 50

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

8 / 50

8. What is the result of with the correct number of significant figures?

9 / 50

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

10 / 50

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

11 / 50

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

12 / 50

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

13 / 50

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

14 / 50

14. Which SI base unit measures the amount of electric charge?

15 / 50

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

16 / 50

16. Convert 500 square meters to square kilometers.

17 / 50

17. Convert 2.5 kilometers per hour to meters per second.

18 / 50

18. What term describes the range within which the true value of a measurement is expected to lie?

19 / 50

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

20 / 50

20. Which method involves using mathematical models or simulations to predict and analyze potential errors in measurement systems?

21 / 50

21. 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.

22 / 50

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

23 / 50

23. Which SI prefix represents ?

24 / 50

24. Which type of error can lead to a consistent overestimation or underestimation of the true value being measured?

25 / 50

25. Which measuring tool is best suited for measuring the length of a large object like a room?

26 / 50

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

27 / 50

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

28 / 50

28. Which historical timekeeping device uses the gradual melting of wax to measure time intervals?

29 / 50

29. Which instrument measures the mass of an object using a beam with sliding weights on calibrated scales?

30 / 50

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

31 / 50

31. Calculate with correct significant figures.

32 / 50

32. Which property of an object is influenced by gravitational force?

33 / 50

33. Which fundamental quantity is involved in defining the derived unit of frequency?

34 / 50

34. Which non-SI unit is used to measure time intervals?

35 / 50

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

36 / 50

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

37 / 50

37. Which ancient timekeeping device uses the position of the sun's shadow to indicate time?

38 / 50

38. Which advantage of the SI system facilitates ease of learning and application?

39 / 50

39. What was the significance of the Treaty of the Meter signed in 1875?

40 / 50

40. What is the SI base unit for measuring the mass of an object?

41 / 50

41. Which unit of time is commonly used for geological or cosmological events spanning millions or billions of years?

42 / 50

42. Which statistical measure is commonly used to quantify the spread or variability of data points in repeated measurements?

43 / 50

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

44 / 50

44. Which type of error is often reduced by improving the sensitivity and precision of measuring instruments?

45 / 50

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

46 / 50

46. Which technique for measuring large distances relies on measuring the time delay between sending and receiving radio waves bounced off a distant object?

47 / 50

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

48 / 50

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

49 / 50

49. Which instrument is used to measure distances at the atomic scale by measuring the tunneling current between a sharp tip and the sample surface?

50 / 50

50. Which type of error can be minimized by calibrating measuring instruments regularly?

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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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