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Class 11 Physics — Chapter 11: Thermal Properties of Matter Online Test

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Class 11 Physics: Thermal Properties of Matter 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. A blackbody emits maximum radiation at wavelength . Calculate the temperature of the blackbody.

2 / 20

2. How do detergents remove oil and grease stains from clothes?

3 / 20

3. A soil pore of radius retains water with surface tension . Calculate height of capillary rise ().

4 / 20

4. A cavitation bubble of radius in water has surface tension . Find excess pressure inside.

5 / 20

5. A soap bubble of radius has surface tension . Find the excess pressure inside it.

6 / 20

6. If the angle of contact , what will be the value of ?

7 / 20

7. A cubic centimeter of water splits into spherical droplets. If surface tension of water is , estimate the increase in surface energy. (Take density = ).

8 / 20

8. Which of the following is NOT an example of capillary action?

9 / 20

9. Which of the following is the correct statement of Bernoulli’s principle?

10 / 20

10. What does a Reynolds number greater than 3000 usually indicate?

11 / 20

11. For water at (), flowing at in a pipe of diameter , calculate .

12 / 20

12. A submarine moves at in seawater (). If its length is , calculate Reynolds number.

13 / 20

13. Water of density flows with velocity in a pipe of diameter . If viscosity is , calculate the Reynolds number.

14 / 20

14. Oil of density and viscosity flows through a pipe of diameter at velocity . Calculate Reynolds number.

15 / 20

15. A water droplet of radius falls through air. If viscosity of air is and density of water is , while air density is , find its terminal velocity.

16 / 20

16. A pollen grain of radius has density . If it falls in air (), calculate its terminal velocity. ()

17 / 20

17. In sedimentation analysis, particle size can be determined by measuring:

18 / 20

18. A dust particle of radius and density settles in air of viscosity . Find its terminal velocity. ()

19 / 20

19. If the atmospheric pressure is of Hg, the corresponding pressure in Pascal is approximately:

20 / 20

20. What happens to atmospheric pressure as altitude increases?

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Class 11 Physics: Thermal Properties of Matter 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 medical device works on the principle of the Venturi effect?

2 / 30

2. What happens to surface tension when detergent is added to water?

3 / 30

3. Why do mountaineers carry oxygen cylinders at high altitudes?

4 / 30

4. Which of the following statements shows the significance of Bernoulli’s principle?

5 / 30

5. Atmospheric pressure is caused by:

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6. Which state of matter exhibits diffusion the fastest?

7 / 30

7. Why do liquid drops tend to form spherical shapes in the absence of external forces?

8 / 30

8. A 2 kg block of ice at is converted into water at . If specific heat of ice = 2100 J/kgK, latent heat of fusion = , specific heat of water = 4200 J/kgK, find total heat absorbed.

9 / 30

9. The emissive power of a blackbody at is:

10 / 30

10. Why are thermal insulators used in building construction?

11 / 30

11. A spherical drop of water of radius splits into identical small drops. Calculate the increase in surface energy if surface tension of water = .

12 / 30

12. Which of the following is NOT a limitation of Stokes’ law?

13 / 30

13. The unit “bar” is related to Pascal as:

14 / 30

14. Which property of detergents helps them clean greasy dishes effectively?

15 / 30

15. Pascal’s law states that:

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16. Why do clothes washed with detergent appear cleaner than with plain water?

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17. Which statement correctly describes the combined effect of temperature and pressure on liquid viscosity?

18 / 30

18. Which of the following statements summarizes the main limitations of Stokes’ law?

19 / 30

19. The height of the mercury column in a barometer at sea level is approximately:

20 / 30

20. Non-Newtonian fluids differ from Newtonian fluids because:

21 / 30

21. If a force of 200 N is applied uniformly on a surface of area 0.5 m, the pressure is:

22 / 30

22. Which of the following is a typical flow regime for blood in small capillaries?

23 / 30

23. Which of the following correctly defines heat?

24 / 30

24. The expression for terminal velocity of a small sphere falling through a viscous fluid is:

25 / 30

25. A blackbody at temperature radiates energy . If its temperature is increased to , the power radiated becomes:

26 / 30

26. A film of area is stretched to . If surface tension is , calculate the work done.

27 / 30

27. Why does detergent reduce the surface tension of water?

28 / 30

28. What role do micelles play in detergent action?

29 / 30

29. A water droplet of radius has surface tension . Find the excess pressure inside the drop.

30 / 30

30. Which principle is used in the working of an Ostwald viscometer?

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Class 11 Physics: Thermal Properties of Matter 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!

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

Good luck! 👍

1 / 50

1. A container has two immiscible liquids, each of height 2 m. The densities are and . Find the pressure at the bottom.

2 / 50

2. A detergent solution forms smaller drops on a glass slide compared to pure water. Why?

3 / 50

3. In two containers of different shapes but same depth filled with the same liquid, the pressure at the bottom will be:

4 / 50

4. Which of the following is the best example of terminal velocity in nature?

5 / 50

5. Which statement best summarizes the importance of capillary rise in nature and technology?

6 / 50

6. Why do liquid drops tend to form spherical shapes in the absence of external forces?

7 / 50

7. Which assumption is NOT valid in Bernoulli’s principle?

8 / 50

8. An airplane wing generates lift mainly because:

9 / 50

9. Which of the following best describes the relationship between surface tension and surface energy?

10 / 50

10. Why can’t Bernoulli’s principle be applied in compressible fluid flows at very high speeds?

11 / 50

11. In blood circulation, Reynolds numbers are typically less than 1000. What does this imply?

12 / 50

12. Sedimentation rate of a particle in fluid is directly proportional to:

13 / 50

13. In the laminar flow regime, head loss due to friction in a pipe is proportional to:

14 / 50

14. A body of mass and specific heat capacity is heated from to . Calculate the heat absorbed.

15 / 50

15. Why does mercury not spread on glass but form spherical drops instead?

16 / 50

16. What is surface energy?

17 / 50

17. The excess pressure inside a gas bubble of radius in water () is:

18 / 50

18. Which of the following equations relates work done in increasing surface area by ?

19 / 50

19. The emissive power of a blackbody at is:

20 / 50

20. Why are bubbles studied in engineering fluid dynamics?

21 / 50

21. Which of the following explains why detergent-treated water wets cloth more effectively?

22 / 50

22. Which liquid will show higher capillary rise in a glass tube of equal radius?

23 / 50

23. What is the critical Reynolds number for flow in a cylindrical tube?

24 / 50

24. How does the density of a liquid affect capillary rise?

25 / 50

25. Which device is most suitable for measuring pressure in aircraft at high altitudes?

26 / 50

26. Which of the following correctly represents one Pascal?

27 / 50

27. A cylindrical tank is filled with water to a depth of . Find the pressure at the bottom due to the water column. ()

28 / 50

28. A 500 g block of copper at is placed in 1 kg of water at . If specific heat of copper = 400 J/kgK, water = 4200 J/kgK, find final equilibrium temperature.

29 / 50

29. Why are smaller liquid droplets less stable compared to larger ones?

30 / 50

30. Which of the following does NOT influence the laminar-to-turbulent transition directly?

31 / 50

31. Mathematically, Bernoulli’s equation can be written as:

32 / 50

32. Why is Reynolds number dimensionless?

33 / 50

33. Which statement correctly explains why hydraulic machines are widely used?

34 / 50

34. Why is surface tension important in materials science?

35 / 50

35. In the capillary rise method, surface tension is calculated using the formula:

36 / 50

36. Which of the following best summarizes the significance of Reynolds number?

37 / 50

37. Which factor does NOT directly affect Reynolds number?

38 / 50

38. In a falling sphere viscometer, if a steel ball of radius falls with velocity in glycerin of viscosity , what is the viscous force acting on it?

39 / 50

39. In industrial pipeline design, turbulent regime is often preferred for transporting gases because:

40 / 50

40. A hydraulic press has a small piston of area and a large piston of area . If a force of 200 N is applied on the small piston, find the load lifted on the large piston.

41 / 50

41. The reason pressure cookers are efficient in cooking is related to:

42 / 50

42. What are the dimensions of pressure in terms of mass (M), length (L), and time (T)?

43 / 50

43. An open tank contains two immiscible liquids of densities and , each of height . Find the pressure at the bottom.

44 / 50

44. Which of the following is a key assumption in the derivation of Stokes’ law?

45 / 50

45. Why is the concept of Reynolds number important in pipe flow design?

46 / 50

46. Stokes’ law fails when the Reynolds number:

47 / 50

47. A glass capillary of radius is dipped in water. Calculate the capillary rise. (, , ).

48 / 50

48. Why does a fast-moving train tend to pull nearby objects toward it?

49 / 50

49. In free fall through air, a feather reaches terminal velocity much sooner than a stone because:

50 / 50

50. A steel ball of radius moves with velocity through glycerin of viscosity . Find the viscous drag force acting on the ball.

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Practice Thermal Properties of Matter MCQs
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Class 11 Physics — Chapter 11: Thermal Properties of Matter Online Test

The Thermal Properties of Matter Online Test for Class 11 Physics helps students understand how heat affects the physical properties of substances. This chapter is all about learning the science behind expansion, temperature measurement, heat transfer, and change of state. Many students read the formulas but struggle when it comes to applying them in numerical problems. This test is made to solve exactly that issue — through exam-style MCQs that strengthen your logic and speed.

These online tests are fully based on the NCERT Class 11 Physics Chapter 11 — Thermal Properties of Matter and follow the latest CBSE syllabus. The test papers are interactive, time-bound, and auto-checked. Whether you are revising for school exams or preparing for JEE and NEET Physics, this chapter-wise test will make concepts like specific heat capacity, calorimetry, thermal expansion, and heat transfer crystal clear.

Students often find thermal physics tricky because it mixes theory with mathematical reasoning. This Thermal Properties of Matter Online Test helps you develop both conceptual clarity and numerical accuracy. Every time you attempt, you will gain a better sense of how heat behaves in solids, liquids, and gases — and how to use equations practically in problems.

About this Online Test

The Chapter 11 Online Test is divided into three papers designed to help you grow from beginner to advanced level. Each paper focuses on accuracy, concept building, and exam-like pressure.

  • Paper 1 — Concept Check: 20 questions · 30 min · Pass ≥ 40%
  • Paper 2 — Mixed Practice: 30 questions · 45 min · Pass ≥ 50% · Fresh set every attempt
  • Paper 3 — Final Challenge: 50 questions · 75 min · Pass ≥ 70% · Certificate on pass

Papers 2 and 3 provide new question sets every time you attempt, while Paper 1 remains constant for fundamental revision. Each test is auto-evaluated and includes full answer review after completion.

Key Topics Covered (Thermal Properties of Matter)

  • Temperature and heat — concepts and difference
  • Thermal expansion — linear, area, and volume expansion
  • Specific heat capacity and calorimetry
  • Change of state — latent heat of fusion and vaporization
  • Anomalous expansion of water
  • Heat transfer mechanisms — conduction, convection, and radiation
  • Newton’s law of cooling and its applications
  • Thermal conductivity and real-life examples

Why You Should Attempt This Test

Thermal Physics is a high-scoring topic once concepts are clear. This online test helps you build confidence by revising both definitions and numerical problems. It allows you to:

  • Strengthen formula-based understanding of heat and temperature
  • Revise all key concepts through timed tests
  • Identify weak areas instantly with automatic scoring
  • Develop speed and accuracy for board and competitive exams
  • Access free and unlimited practice without login

Who Should Take This Test

  • CBSE/NCERT Class 11 students revising Chapter 11
  • JEE and NEET aspirants focusing on Thermodynamics and Heat Transfer
  • Students who want to improve their numerical solving skills
  • Teachers using it as a ready-to-use chapter quiz for class practice

Preparation Tips for Chapter 11 — Thermal Properties of Matter

  • Learn all expansion coefficients and their relations (α, β, γ).
  • Practice calorimetry problems using the heat balance principle.
  • Revise Newton’s law of cooling and related experimental questions.
  • Attempt Paper 1 for concept revision, then Paper 2 & 3 for timed testing.
  • After each test, check wrong answers carefully to avoid repeating mistakes.

Before You Start

  • Do not refresh or close the tab during the test.
  • Use latest Chrome or Edge browser for best results.
  • Ensure a stable internet connection for smooth submission.

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