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 type of uncertainty results from consistent errors in the measurement process that affect all measurements in the same way?

2 / 30

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

3 / 30

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

4 / 30

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

5 / 30

5. Which SI prefix denotes ?

6 / 30

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

7 / 30

7. Two times are measured: s and s. Find with uncertainty.

8 / 30

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

9 / 30

9. Which of the following is not a derived unit in the SI system?

10 / 30

10. Which unit of mass is commonly used for expressing the weight of large objects such as trucks and heavy machinery?

11 / 30

11. Which method involves conducting sensitivity analysis to identify and minimize the impact of uncertain factors on measurement results?

12 / 30

12. Convert m² to cm².

13 / 30

13. Which method involves taking multiple measurements of the same quantity and calculating the average to reduce random errors?

14 / 30

14. What is the dimensional formula for power?

15 / 30

15. How do standard units contribute to consumer protection and fair trade practices?

16 / 30

16. What is the full form of SI units?

17 / 30

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

18 / 30

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

19 / 30

19. Which unit of length is equivalent to 1000 micrometers?

20 / 30

20. What is the educational benefit of teaching students about standard units?

21 / 30

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

22 / 30

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

23 / 30

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

24 / 30

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

25 / 30

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

26 / 30

26. What is the dimensional formula for force?

27 / 30

27. Which technique for measuring large distances is suitable for determining the height of mountains and valleys from a satellite?

28 / 30

28. Which method involves ensuring that the measuring instruments are adjusted to a consistent reference point?

29 / 30

29. Which of the following quantities has the dimension ?

30 / 30

30. Which non-SI unit is commonly used to measure angles?

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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 unit of length is equal to meters?

2 / 50

2. What is the dimensional formula for force?

3 / 50

3. Which type of error can be reduced by taking multiple measurements and averaging the results?

4 / 50

4. What is the educational benefit of teaching students about standard units?

5 / 50

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

6 / 50

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

7 / 50

7. The error in measuring the side of a square is 1%. What is the percentage error in its area?

8 / 50

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

9 / 50

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

10 / 50

10. What is the SI base unit for measuring the length of an object?

11 / 50

11. What is the value of the SI prefix giga-?

12 / 50

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

13 / 50

13. Which unit of length is equal to 1000 millimeters?

14 / 50

14. Which method involves ensuring that the measuring instruments are adjusted to a consistent reference point?

15 / 50

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

16 / 50

16. Convert 4 hours to seconds.

17 / 50

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

18 / 50

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

19 / 50

19. What is a derived quantity in the context of measurements?

20 / 50

20. Which unit of mass is commonly used for measuring the weight of food items and ingredients in recipes?

21 / 50

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

22 / 50

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

23 / 50

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

24 / 50

24. Which ancient civilization is credited with the invention of the sundial?

25 / 50

25. Which type of error can be identified and corrected through careful experimental design and control?

26 / 50

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

27 / 50

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

28 / 50

28. Why is it important to have multiple measurements in an experiment?

29 / 50

29. What is the dimensional formula for pressure?

30 / 50

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

31 / 50

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

32 / 50

32. Which unit of mass is commonly used in pharmaceuticals and medicine for measuring precise dosages of drugs?

33 / 50

33. What is the role of a standard unit of measurement in science?

34 / 50

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

35 / 50

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

36 / 50

36. Which measuring tool is used for rough measurements of lengths in construction?

37 / 50

37. What is the dimensional formula for angular momentum?

38 / 50

38. What is the SI unit of electric potential difference?

39 / 50

39. A sphere’s diameter cm. Compute surface area with absolute uncertainty.

40 / 50

40. Which approach involves conducting sensitivity tests to evaluate the impact of uncertain factors on measurement outcomes?

41 / 50

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

42 / 50

42. Convert m to micrometers.

43 / 50

43. Which instrument measures the mass of an object by suspending it from a hook and reading the extension of a spring?

44 / 50

44. Which instrument is used to produce high-resolution images of the surface of materials using a beam of electrons?

45 / 50

45. Which unit of time is equal to 60 seconds?

46 / 50

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

47 / 50

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

48 / 50

48. Which property of an object remains the same regardless of its location in the universe?

49 / 50

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

50 / 50

50. 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?

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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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