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. Convert 5000 grams to kilograms.

2 / 30

2. Convert 0.500 J to erg (1 erg = J).

3 / 30

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

4 / 30

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

5 / 30

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

6 / 30

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

7 / 30

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

8 / 30

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

9 / 30

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

10 / 30

10. Which SI prefix signifies ?

11 / 30

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

12 / 30

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

13 / 30

13. How many base SI units are there in the International System of Units?

14 / 30

14. Which non-SI unit is used to measure volume?

15 / 30

15. Which fundamental quantity is involved in defining the derived unit of electrical resistance?

16 / 30

16. Which instrument provides the most precise measurement of time among the options?

17 / 30

17. Which instrument measures the mass of an object by converting the force of gravity acting on it into an electrical signal?

18 / 30

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

19 / 30

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

20 / 30

20. Which type of error occurs unpredictably and varies randomly in magnitude and direction?

21 / 30

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

22 / 30

22. Which unit of time is equal to 24 hours?

23 / 30

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

24 / 30

24. What is the dimensional formula for power?

25 / 30

25. Which fundamental quantity does the derived quantity 'energy' depend on?

26 / 30

26. Why do international organizations advocate for the universal adoption of standard units?

27 / 30

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

28 / 30

28. Which step is essential in error analysis to ensure reliable measurement results?

29 / 30

29. Which instrument is suitable for measuring short durations accurately, often used in scientific experiments?

30 / 30

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

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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 ensuring that the measuring instruments are adjusted to a consistent reference point?

2 / 50

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

3 / 50

3. Which instrument is used to measure the distance changes in an interferometer setup using laser light interference patterns?

4 / 50

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

5 / 50

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

6 / 50

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

7 / 50

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

8 / 50

8. Which measuring tool is commonly used in tailoring for measuring lengths of fabric?

9 / 50

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

10 / 50

10. Which factor contributes to uncertainty by introducing variations that cannot be controlled or predicted?

11 / 50

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

12 / 50

12. Which statement accurately describes a limitation of dimensional analysis?

13 / 50

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

14 / 50

14. Which term describes the degree of closeness between a measured value and the true value of a quantity?

15 / 50

15. Which of the following is a consequence of using non-standard units in scientific measurements?

16 / 50

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

17 / 50

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

18 / 50

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

19 / 50

19. Which instrument uses the vibrations of atoms to measure time with extreme accuracy?

20 / 50

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

21 / 50

21. Convert 4 hours to seconds.

22 / 50

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

23 / 50

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

24 / 50

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

25 / 50

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

26 / 50

26. Which unit of time is equal to approximately 30.44 days?

27 / 50

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

28 / 50

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

29 / 50

29. Convert m to micrometers.

30 / 50

30. Which instrument is used to measure mass, independent of the gravitational field?

31 / 50

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

32 / 50

32. Convert 2500 millimeters to meters.

33 / 50

33. Which instrument measures time intervals in milliseconds or microseconds?

34 / 50

34. Which instrument is commonly used in laboratories and industries for precise measurement of mass?

35 / 50

35. What is the value of the SI prefix micro-?

36 / 50

36. Why are standard units crucial for advancing technological innovations?

37 / 50

37. Which unit of length is equal to meters?

38 / 50

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

39 / 50

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

40 / 50

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

41 / 50

41. Which method involves training personnel to minimize errors caused by inconsistent techniques or practices?

42 / 50

42. Which SI unit is defined based on the amount of electric charge flowing per unit time?

43 / 50

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

44 / 50

44. Which unit of mass is often used in daily life for measuring the weight of food items and personal objects?

45 / 50

45. Which ancient civilization is known for using water clocks as timekeeping devices?

46 / 50

46. Which measuring tool is suitable for measuring the depth of a hole in a metal block?

47 / 50

47. A stopwatch has least count 0.01 s. Ten oscillations of a pendulum take s. What is the period with proper uncertainty?

48 / 50

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

49 / 50

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

50 / 50

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

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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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