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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.

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  • Total Questions: 30
  • Time Allotted: 45 minutes
  • Passing Score: 50%
  • Randomization: Yes
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 30

1. Why do raindrops formed in warm conditions tend to be larger compared to cold conditions?

2 / 30

2. Which state of matter exhibits diffusion the fastest?

3 / 30

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

4 / 30

4. The effectiveness of hydraulic brakes decreases if:

5 / 30

5. Why are mercury-in-glass thermometers not suitable for very cold regions?

6 / 30

6. Stokes’ law is used in sedimentation to:

7 / 30

7. Which statement best summarizes the role of detergents in reducing surface tension?

8 / 30

8. A copper calorimeter contains of water at . When of steam at is condensed into it, find final temperature. (copper , water , latent heat of vaporization ).

9 / 30

9. If the radius of a capillary is doubled, the height of capillary rise will be:

10 / 30

10. Which factor does NOT affect the stability of a soap bubble?

11 / 30

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

12 / 30

12. Why are bubbles studied in engineering fluid dynamics?

13 / 30

13. Why does sandy soil dry faster than clay soil?

14 / 30

14. Which thermal property of water makes it important for regulating Earth’s climate?

15 / 30

15. Which of the following best describes the condition for terminal velocity mathematically?

16 / 30

16. A swimmer dives to a depth of 5 m in a swimming pool. If atmospheric pressure is , calculate the total pressure on him. ()

17 / 30

17. Why are streamlined shapes used in aerodynamics?

18 / 30

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

19 / 30

19. Which of the following is a correct everyday-life example of viscosity?

20 / 30

20. Which law states that pressure at a point in a fluid at rest is transmitted equally in all directions?

21 / 30

21. Which assumption about the fluid is required for Stokes’ law to be valid?

22 / 30

22. What is the main role of detergents in cleaning?

23 / 30

23. How does surface tension affect capillary rise?

24 / 30

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

25 / 30

25. Terminal velocity of a particle is proportional to:

26 / 30

26. According to Stokes’ law, the viscous force on a small sphere moving with velocity through a fluid is:

27 / 30

27. Which condition indicates turbulent flow in Reynolds’ experiment?

28 / 30

28. One limitation of Stokes’ law in real-world sedimentation experiments is:

29 / 30

29. Which statement best summarizes the relationship between surface energy and surface tension?

30 / 30

30. Sedimentation method for particle size determination is particularly useful for:

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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. Why does turbulence occur at high Reynolds numbers?

2 / 50

2. A skydiver falls freely from an aircraft and attains a speed of about . This speed is called:

3 / 50

3. Which assumption about the fluid is required for Stokes’ law to be valid?

4 / 50

4. The spreading coefficient of a liquid on a solid is defined as:

5 / 50

5. Why does Bernoulli’s principle not fully explain lift on airplane wings?

6 / 50

6. Which statement best highlights the importance of studying thermal properties in daily life?

7 / 50

7. A bubble in air has radius and surface tension . Find the excess pressure inside the bubble.

8 / 50

8. Which assumption is NOT made in the derivation of Bernoulli’s principle?

9 / 50

9. A blackbody radiates at . At what temperature will it radiate ?

10 / 50

10. A swimmer is at a depth of 15 m in a lake. Find the absolute pressure at that depth. ()

11 / 50

11. The expression for critical velocity in terms of Reynolds number is:

12 / 50

12. Why are cooking utensils usually made of metals like aluminum or copper?

13 / 50

13. What is surface tension?

14 / 50

14. Sedimentation method for particle size determination is particularly useful for:

15 / 50

15. Work required to increase surface area of a liquid film by is given by:

16 / 50

16. Which condition indicates turbulent flow in Reynolds’ experiment?

17 / 50

17. Streamline flow is also known as:

18 / 50

18. Which of the following best represents a real-life example of turbulent flow?

19 / 50

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

20 / 50

20. A steel rod () of length and area conducts of heat between its ends. The temperature difference between the ends is:

21 / 50

21. If the radius of a capillary tube is halved, the height of capillary rise becomes:

22 / 50

22. Why does water rise in soil pores even against gravity?

23 / 50

23. What is streamline flow in fluids?

24 / 50

24. Why are streamlined shapes used in aerodynamics?

25 / 50

25. Why do detergents help in removing grease and oil stains?

26 / 50

26. 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.

27 / 50

27. A capillary of radius dipped in water shows a rise of . If radius is halved, what will be the rise?

28 / 50

28. Which real-life example directly demonstrates Pascal’s principle?

29 / 50

29. One limitation of Stokes’ law in real-world sedimentation experiments is:

30 / 50

30. A detergent solution removes a grease patch of radius . If the energy required to increase surface area is , calculate the effective surface tension.

31 / 50

31. Which liquid shows capillary rise in a glass tube?

32 / 50

32. A droplet of radius has excess pressure . If the radius is halved, what will be the excess pressure?

33 / 50

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

34 / 50

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

35 / 50

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

36 / 50

36. A soap film has area and surface tension . Calculate its surface energy.

37 / 50

37. Which parameter in the Reynolds number formula represents the "characteristic length"?

38 / 50

38. A simple U-tube manometer contains mercury. If the levels of mercury in both arms are equal, this indicates:

39 / 50

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

40 / 50

40. Which factor does NOT affect sedimentation velocity according to Stokes’ law?

41 / 50

41. In which condition does capillary rise become maximum?

42 / 50

42. A flow with Reynolds number is most likely:

43 / 50

43. A soap film has surface tension and area . Since it has two surfaces, calculate its surface energy.

44 / 50

44. Why do airplane wings experience turbulence?

45 / 50

45. Which of the following best summarizes the significance of the Venturi effect in engineering?

46 / 50

46. The velocity at which laminar flow just becomes unstable and begins to turn turbulent is called:

47 / 50

47. A car weighing is to be lifted using a hydraulic lift. If the area of the large piston is and that of the small piston is , what minimum force must be applied on the small piston?

48 / 50

48. For a liquid film of surface tension and area , the total surface energy is:

49 / 50

49. Why is capillary action important for plant physiology?

50 / 50

50. How does temperature generally affect the viscosity of liquids?

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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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