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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:

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

2 / 30

2. A container holds mercury up to 2 m. If , calculate the pressure at the bottom. ()

3 / 30

3. Which statement best summarizes the effect of temperature on surface tension?

4 / 30

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

5 / 30

5. Which of the following fluids is considered “ideal” with respect to viscosity?

6 / 30

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

7 / 30

7. Which of the following is NOT true about the shape of liquid drops and bubbles?

8 / 30

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

9 / 30

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

10 / 30

10. A car of mass is lifted using a hydraulic lift. If the large piston has an area of , what pressure must be applied in the fluid to lift the car? ()

11 / 30

11. In a hydraulic lift, a small piston of area is used to lift a car of mass . If the area of the large piston is , what force must be applied on the small piston? ()

12 / 30

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

13 / 30

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

14 / 30

14. What is the primary factor that governs the transition from laminar to turbulent flow in a fluid?

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15. Which of the following is a correct distinction between Newtonian and Non-Newtonian fluids?

16 / 30

16. In an Ostwald viscometer, the relative viscosity of two liquids is given by:

17 / 30

17. Which state of matter exhibits diffusion the fastest?

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18. Which of the following methods is commonly used for measuring surface tension of liquids?

19 / 30

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

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20. Which statement is TRUE about streamline and turbulent flow?

21 / 30

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

22 / 30

22. Which of the following best describes turbulent flow?

23 / 30

23. Reynolds number is a dimensionless quantity used to predict:

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24. Which of the following is a branch of physics that deals with the study of heat and its effects on matter?

25 / 30

25. Which of the following situations cannot be explained accurately by Bernoulli’s principle alone?

26 / 30

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

27 / 30

27. A body of area and emissivity radiates at temperature . If surrounding temperature is , find . ()

28 / 30

28. A dam is 25 m high. If water density is , what is the pressure exerted at the bottom of the dam?

29 / 30

29. The terminal velocity of a small spherical particle falling through a viscous fluid is given by:

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30. Which real-life application of Bernoulli’s principle explains the lift force on an airplane wing?

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

2 / 50

2. Which principle is used in the working of hydraulic lifts and hydraulic brakes?

3 / 50

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

4 / 50

4. Mercury in a glass capillary tube shows depression instead of rise because:

5 / 50

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

6 / 50

6. The effect of pressure on the viscosity of liquids is:

7 / 50

7. A thin plate of area and thickness has thermal conductivity . One side is at and the other at . Find the rate of heat conduction.

8 / 50

8. Which viscometer uses the principle of rotational resistance in fluid?

9 / 50

9. Why can some insects like water striders walk on water?

10 / 50

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

11 / 50

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

12 / 50

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

13 / 50

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

14 / 50

14. The terminal velocity of a spherical particle is proportional to:

15 / 50

15. Why is the study of thermal properties crucial in space technology?

16 / 50

16. A block of ice at is converted into water at . If latent heat of fusion of ice = , calculate heat absorbed.

17 / 50

17. Which of the following everyday phenomena is NOT due to capillary action?

18 / 50

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

19 / 50

19. Why does surface energy cause liquids to contract into minimum area?

20 / 50

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

21 / 50

21. At what depth in water (density ) will the pressure increase by ?

22 / 50

22. Which of the following is an important practical effect of decreasing surface tension with temperature?

23 / 50

23. Which scale of temperature has no negative values?

24 / 50

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

25 / 50

25. Derive the expression for viscous force on a sphere. Which factors does it depend on?

26 / 50

26. Which of the following is a branch of physics that deals with the study of heat and its effects on matter?

27 / 50

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

28 / 50

28. What causes the reading of a mercury barometer to fall suddenly?

29 / 50

29. Pascal’s law is applicable to:

30 / 50

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

31 / 50

31. The excess pressure inside a spherical droplet of radius due to surface tension is given by:

32 / 50

32. Water of density flows in a pipe of diameter with velocity . If viscosity of water is , find the Reynolds number.

33 / 50

33. 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?

34 / 50

34. 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.

35 / 50

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

36 / 50

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

37 / 50

37. Which of the following is a practical application of barometric pressure?

38 / 50

38. In microfluidic devices, Reynolds number is often much less than 1. What does this imply about the flow?

39 / 50

39. Why do detergents help in cleaning surfaces?

40 / 50

40. A spherical particle of radius and density falls through a fluid of density and viscosity . Calculate terminal velocity.

41 / 50

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

42 / 50

42. Terminal velocity of raindrops is important because:

43 / 50

43. Which factor does NOT influence capillary rise?

44 / 50

44. The expression for terminal velocity derived from Stokes’ law is valid only when:

45 / 50

45. Which statement best summarizes the role of soaps and detergents in cleaning and bubble formation?

46 / 50

46. Why do large raindrops deviate from perfect spherical shape as they fall?

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. Which of the following is a misconception often made by students regarding Bernoulli’s principle?

49 / 50

49. Why does the wall of a dam have greater thickness at the bottom than at the top?

50 / 50

50. Which of the following liquids has the highest viscosity at room temperature?

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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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