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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. The hydrostatic pressure at a depth in a fluid of density is given by:

2 / 30

2. If a liquid of density is filled in a tank to a height of , what is the pressure at the bottom?

3 / 30

3. Why can liquids be stored in open containers but gases cannot?

4 / 30

4. 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.

5 / 30

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

6 / 30

6. A metallic sphere of radius is heated by . If specific heat capacity = , density = , find temperature rise.

7 / 30

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

8 / 30

8. What is the SI unit of surface tension?

9 / 30

9. Which of the following statements is TRUE about variation of pressure with height?

10 / 30

10. Which method of surface tension measurement relies on balancing the weight of liquid against the upward pull of surface tension at the meniscus?

11 / 30

11. Why is Stokes’ law used in determining viscosity of fluids using sedimentation?

12 / 30

12. A hydraulic lift has a small piston of area and a large piston of area . If a force of is applied on the small piston, calculate the load lifted by the large piston.

13 / 30

13. Why are soap bubbles more stable in the presence of glycerin?

14 / 30

14. The pressure at the bottom of a liquid column is given by:

15 / 30

15. In the drop weight method, if weight of each drop is and the circumference of the capillary is , the surface tension is:

16 / 30

16. Which of the following is TRUE about Reynolds number in engineering?

17 / 30

17. The working of a carburetor in vehicles is based on:

18 / 30

18. Which of the following is a limitation of Stokes’ law?

19 / 30

19. Why does adding soap to water stabilize bubbles?

20 / 30

20. In the capillary rise method, which of the following factors will increase the observed rise of liquid?

21 / 30

21. Which statement best summarizes the applications of wetting and spreading?

22 / 30

22. In industrial applications, why are detergents used in cooling systems?

23 / 30

23. Which of the following best summarizes the limitations of Bernoulli’s principle?

24 / 30

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

25 / 30

25. Why is thermal conductivity important in everyday appliances?

26 / 30

26. Which of the following statements is TRUE regarding angle of contact?

27 / 30

27. What type of force is represented by Stokes’ law?

28 / 30

28. What happens to the acceleration of a particle as it approaches terminal velocity?

29 / 30

29. In engineering, why is it essential to know the thermal expansion properties of materials?

30 / 30

30. A spherical particle of radius and density falls through a fluid of density and viscosity . Which of the following expresses the condition for terminal velocity?

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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!

Earn a certificate upon passing

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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. During the derivation of Bernoulli’s equation, the work done by pressure force in moving a fluid element is equated to:

2 / 50

2. Which of the following conditions is necessary for a particle to reach terminal velocity in a fluid?

3 / 50

3. At what depth in water will the hydrostatic pressure be equal to twice the atmospheric pressure? (Take ).

4 / 50

4. Which statement best summarizes the definition of surface energy?

5 / 50

5. How does temperature affect the viscosity of gases?

6 / 50

6. A diver goes to a depth of in a lake. If atmospheric pressure is , calculate the total pressure at that depth.

7 / 50

7. Hydraulic systems work on the principle of:

8 / 50

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

9 / 50

9. Why are black surfaces preferred for solar cookers?

10 / 50

10. Which physical condition determines the validity of Stokes’ law?

11 / 50

11. A liquid of density is filled in a container to a depth of . Calculate the hydrostatic pressure at the bottom. ()

12 / 50

12. Why do small oil droplets suspended in air remain floating for a long time?

13 / 50

13. In pipe flow, if the velocity is doubled while keeping density, viscosity, and diameter constant, Reynolds number will:

14 / 50

14. How does surface tension change with temperature?

15 / 50

15. Which of the following is a correct example of terminal velocity in fluid flow?

16 / 50

16. Which factor does NOT directly affect Reynolds number?

17 / 50

17. In Jaeger’s bubble pressure method, the maximum pressure required to form a bubble of radius at the tip of a tube is given by:

18 / 50

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

19 / 50

19. Which of the following liquids exhibits an obtuse angle of contact with glass?

20 / 50

20. A steel ball of radius and density falls through glycerin of viscosity and density . Calculate its terminal velocity. ()

21 / 50

21. In plant stems, the rise of sap through xylem vessels is possible because:

22 / 50

22. Which statement best summarizes flow regimes based on Reynolds number?

23 / 50

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

24 / 50

24. Which factor directly increases the height of capillary rise in a liquid?

25 / 50

25. A blood vessel of diameter carries blood at velocity . Density of blood is , and viscosity is . Find the Reynolds number.

26 / 50

26. Which of the following fluids shows shear-thickening (dilatant) behavior?

27 / 50

27. Which statement best summarizes the role of capillary action in soil and plants?

28 / 50

28. The excess pressure inside a spherical liquid drop of radius is given by:

29 / 50

29. In a hydraulic brake system, the driver applies a force of on the brake pedal connected to a piston of area . If the area of the brake shoe piston is , what force is exerted on the brake shoe?

30 / 50

30. Which law governs laminar flow in narrow pipes?

31 / 50

31. A highly viscous liquid is less likely to undergo laminar-to-turbulent transition because:

32 / 50

32. Why are streamlined shapes used in aerodynamics?

33 / 50

33. What type of meniscus is formed when angle of contact is acute ()?

34 / 50

34. A wooden block of density floats in water. If the height of the block is 30 cm, what is the depth submerged?

35 / 50

35. Why do water droplets on a waxed leaf appear spherical?

36 / 50

36. Which of the following is an example of a Newtonian fluid?

37 / 50

37. If a liquid of density is filled in a tank to a height of , what is the pressure at the bottom?

38 / 50

38. A raindrop falling in air does not keep accelerating forever because:

39 / 50

39. Why can’t Stokes’ law be applied to very small particles like smoke or colloidal particles in air?

40 / 50

40. In engineering, why is it essential to know the thermal expansion properties of materials?

41 / 50

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

42 / 50

42. Why do detergents produce foam while cleaning?

43 / 50

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

44 / 50

44. Which of the following correctly defines heat?

45 / 50

45. Why is mercury preferred in barometers instead of water?

46 / 50

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

47 / 50

47. In Reynolds’ experiment, which visual effect indicated transition to turbulence?

48 / 50

48. Why does pressure in a fluid increase with depth?

49 / 50

49. What does a Reynolds number between 2000 and 3000 generally indicate?

50 / 50

50. What is the angle of contact?

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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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