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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. A blackbody emits maximum radiation at wavelength . Calculate the temperature of the blackbody.

2 / 30

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

3 / 30

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

4 / 30

4. The Venturi effect refers to which phenomenon in fluid flow?

5 / 30

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

6 / 30

6. What is the role of buoyant force in reaching terminal velocity?

7 / 30

7. Which instrument uses the maximum pressure required to blow air bubbles through a liquid to determine its surface tension?

8 / 30

8. Why does paint spread better on a surface treated with primer?

9 / 30

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

10 / 30

10. The Redwood viscometer is mainly used to measure viscosity of:

11 / 30

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

12 / 30

12. Which of the following explains why toothpaste comes out uniformly when the tube is pressed?

13 / 30

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

14 / 30

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

15 / 30

15. Why does hydrostatic pressure increase with depth?

16 / 30

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

17 / 30

17. Why do rain drops appear spherical while falling through air?

18 / 30

18. What happens to atmospheric pressure as altitude increases?

19 / 30

19. Hydrostatic pressure in a fluid depends on:

20 / 30

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

21 / 30

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

22 / 30

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

23 / 30

23. A capillary tube of radius shows a depression of for mercury. If density of mercury is and surface tension is , find the angle of contact.

24 / 30

24. A copper wire of length , radius , and thermal conductivity conducts of heat per second. Find temperature difference between ends.

25 / 30

25. 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? ()

26 / 30

26. Which statement best summarizes the importance of angle of contact?

27 / 30

27. A spherical particle of radius has density . It falls in water (, ). Calculate its terminal velocity. ()

28 / 30

28. The height of water rise in soil is inversely proportional to:

29 / 30

29. Which of the following is an application of capillarity and surface tension in materials science?

30 / 30

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

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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 are viscometers important in industries?

2 / 50

2. Water of viscosity flows in a pipe of diameter . If density is and , calculate the critical velocity.

3 / 50

3. Which of the following sports uses Bernoulli’s principle?

4 / 50

4. What is the lowest possible temperature called?

5 / 50

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

6 / 50

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

7 / 50

7. A container holds oil of density to a depth of . What is the pressure at the bottom due to the oil column?

8 / 50

8. Which instrument uses the maximum pressure required to blow air bubbles through a liquid to determine its surface tension?

9 / 50

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

10 / 50

10. Why are gaps left between concrete slabs on roads and pavements?

11 / 50

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

12 / 50

12. In a sprayer or perfume atomizer, liquid rises in the tube because:

13 / 50

13. For water in a clean glass tube, the angle of contact is approximately:

14 / 50

14. A capillary tube of radius is dipped in water (). Find the rise of water.

15 / 50

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

16 / 50

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

17 / 50

17. 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.

18 / 50

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

19 / 50

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

20 / 50

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

21 / 50

21. Which of the following is an example showing the difference between liquids and gases?

22 / 50

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

23 / 50

23. What type of barometer uses the principle of elastic deformation of a sealed metal chamber?

24 / 50

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

25 / 50

25. Which of the following is an example of detergent action in everyday life?

26 / 50

26. In soil, water spreads through small pores between particles primarily due to:

27 / 50

27. In streamline flow, the velocity of fluid:

28 / 50

28. Two soap bubbles of radii and are connected by a tube. The air will flow:

29 / 50

29. In aerodynamics, drag force acting on a body moving through air consists mainly of:

30 / 50

30. What is the basic structural feature of detergent molecules?

31 / 50

31. The SI unit of coefficient of viscosity is:

32 / 50

32. A blackbody emits maximum radiation at wavelength . Calculate the temperature of the blackbody.

33 / 50

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

34 / 50

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

35 / 50

35. A streamline tube carries fluid of density . Work done by pressure force per unit volume as fluid moves a distance is:

36 / 50

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

37 / 50

37. The drop number method for surface tension measurement involves:

38 / 50

38. Which of the following flow regimes has the highest energy loss due to friction and eddies?

39 / 50

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

40 / 50

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

41 / 50

41. Which of the following best summarizes the cause of surface tension?

42 / 50

42. Which law describes the exponential decrease of pressure with height in the atmosphere (assuming isothermal conditions)?

43 / 50

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

44 / 50

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

45 / 50

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

46 / 50

46. Why does hot water spread more easily on oily or greasy surfaces compared to cold water?

47 / 50

47. Why are soaps and detergents effective cleaning agents?

48 / 50

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

49 / 50

49. How does surface tension change with temperature?

50 / 50

50. Streamline flow usually occurs when:

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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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