This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part Ii > Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When a body's temperature increases, there is an increase in the A) Internal Gravitational Energy. B) Internal Heat Energy. C) Internal Kinetic Energy. D) Internal Potential Energy. Show Answer Correct Answer: C) Internal Kinetic Energy. 2. The water from two buckets is mixed together. One bucket contains 5 kg of water at 2 degrees celsius and the other contains 1 kg of water at 80 degrees celsius.What is the final temperature of the mixture, assuming no heat is lost to the surroundings? A) 500 degrees celsius. B) 700 degrees celsius. C) 600 degrees celsius. D) 300 degrees celsius. Show Answer Correct Answer: D) 300 degrees celsius. 3. We can measure the specific heat capacity using A) Ruler. B) Liquid thermometer. C) Calorimeter. D) Infrared thermometer. Show Answer Correct Answer: C) Calorimeter. 4. Question 2What are the upper and lower fixed points on a Celsius scale thermometer? Upper Lower A) D The boiling point of pure water Absolute zero. B) C The boiling point of pure water The freezing point of pure water. C) B The normal temperature of the human body The freezing point of salt water. D) A The boiling point of a saturated salt solution The freezing point of salt water. Show Answer Correct Answer: B) C The boiling point of pure water The freezing point of pure water. 5. Which process involves heat but no temperature change? A) Expansion. B) Melting. C) Heating. D) Compression. Show Answer Correct Answer: B) Melting. 6. Which statement best describes the difference between boiling and evaporation? A) Boiling occurs throughout the liquid, while evaporation happens only at the surface. B) Both occur at any temperature. C) Evaporation needs bubbles to form in the liquid. D) Boiling can happen even at very low temperatures. Show Answer Correct Answer: A) Boiling occurs throughout the liquid, while evaporation happens only at the surface. 7. What are the three main modes of heat transfer? A) Filtration, separation, extraction. B) Absorption, reflection, diffusion. C) Conduction, convection, radiation. D) Evaporation, condensation, sublimation. Show Answer Correct Answer: C) Conduction, convection, radiation. 8. The molecular property of matter that explains why gases are compressible is: A) Large intermolecular distance. B) Fixed volume. C) High density. D) Strong attraction. Show Answer Correct Answer: A) Large intermolecular distance. 9. When a liquid evaporates, its temperature is lowered. Which of the following is the most appropriate explanation for this observation? A) The total internal energy of the liquid decreased. B) The average internal kinetic energy of the molecules in the liquid decreased. C) The liquid lost transferred heat to the surroundings. D) The total internal kinetic energy of the molecules in the liquid decreased. Show Answer Correct Answer: B) The average internal kinetic energy of the molecules in the liquid decreased. 10. Which quantity remains constant in an isothermal process? A) Temperature. B) Energy. C) Volume. D) Pressure. Show Answer Correct Answer: A) Temperature. 11. Which of the following materials will cool down the slowest when removed from a heat source? A) Dry air. B) Liquid water. C) Iron. D) Water vapor. Show Answer Correct Answer: B) Liquid water. 12. A 10 kg block of ice undergoes melting at 0 $^\circ$C when it is being heated by a heater.The specific latent heat of fusion for ice is 33600 J/kg.How much energy needs to be provided by the heater in order for the block of ice to be completely melted? A) 336000 J. B) 33600 J. C) 3360 J. D) 0 J. Show Answer Correct Answer: A) 336000 J. 13. The internal potential energy of a substance increases when ..... A) It changes state from solid to liquid. B) It changes state from liquid to solid. C) It increases in temperature. D) It decreases in temperature. Show Answer Correct Answer: A) It changes state from solid to liquid. 14. From the graph shown in the simulation, what do you observe about the temperature when solid ice is still below its melting point of 0 $^\circ$C? A) The temperature increases. B) The temperature decreases. C) The temperature remains constant. D) None of the above. Show Answer Correct Answer: A) The temperature increases. 15. Latent heat of vaporisation is always A) Greater than its latent heat of sublimation. B) Greater than its latent heat of fusion. C) Equal to its latent heat of sublimation. D) Less than its latent heat of fusion. Show Answer Correct Answer: B) Greater than its latent heat of fusion. 16. When the substance melts or boils, energy is ..... A) Released to form the bonds that are holding particles together. B) Put in to breaking the bonds that are holding particles together. C) Put in to form the bonds that are holding particles together. D) Released to break the bonds that are holding particles together. Show Answer Correct Answer: B) Put in to breaking the bonds that are holding particles together. 17. The energy per kilogram required to cause a substance to change state from liquid to gas as its boiling point is called ..... A) Specific heat. B) Specific latent heat of vaporization. C) Specific latent heat. D) None of the above. Show Answer Correct Answer: B) Specific latent heat of vaporization. 18. What is the full name of Celsius? A) Anders Celsius. B) Andre Celsius. C) Anderson Celsius. D) None of the above. Show Answer Correct Answer: A) Anders Celsius. 19. Which changes of state occur as a result of a gain in thermal energy? A) Boiling and melting. B) Boiling and solidification. C) Condensation and melting. D) Condensation and solidification. Show Answer Correct Answer: A) Boiling and melting. 20. The amount of steam required (at 100$^\circ$C) to raise the temperature of 200 g of water from 60$^\circ$C to 100$^\circ$C is A) 10 g. B) 15.8 g. C) 14.8 g. D) 20 g. Show Answer Correct Answer: C) 14.8 g. 21. A material was heated from 40$^\circ$C to 100$^\circ$C. What was the temperature change? A) -60$^\circ$C. B) 40$^\circ$C. C) -40$^\circ$C. D) 60$^\circ$C. Show Answer Correct Answer: D) 60$^\circ$C. 22. What happens to the molecules in a liquid as it gets hotter? A) Speed up. B) Slow down. C) Stay at same speed. D) None of the above. Show Answer Correct Answer: A) Speed up. 23. Relation between coefficient of linear expansion, $\alpha$ $\beta$ A) $\alpha$ $\beta$. B) $\alpha$ $\beta$. C) $\beta$ $\alpha$. D) None of the above. Show Answer Correct Answer: C) $\beta$ $\alpha$. 24. When the surrounding temperature is higher, the rate of evaporation increases A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. A solid ball of metal has a spherical cavity inside it. The balln is heated. The volume of cavity will A) Have its shape changed. B) Increase. C) Remain unchanged. D) Decrease. Show Answer Correct Answer: B) Increase. 26. Which energy is directly related to the distance / forces of attraction between the molecules? A) Potential energy. B) Kinetic energy. C) All the above. D) None of the above. Show Answer Correct Answer: A) Potential energy. 27. A bucket of ice is being heated up by a heater in order for it to melt.The initial temperature of the ice is-10 $^\circ$C.The specific heat capacity of ice and water is 2100 J/kg$^\circ$C and 4200 J/kg$^\circ$C respectively and the specific latent heat of fusion of ice is 33600 J/kg.Given that a total of 245700 J of energy is supplied to the ice, what is the mass of the ice? A) 7.31 kg. B) 3.25 kg. C) 11.7 kg. D) 4.5 kg. Show Answer Correct Answer: D) 4.5 kg. 28. The saturation vapour pressure of water at 100 deg C is A) 712 mm of mercury. B) 760 mm of mercury. C) 739 mm of mercury. D) 750 mm of mercury. Show Answer Correct Answer: B) 760 mm of mercury. 29. An electric device made of two different metals is called ..... A) Thermometer. B) Termocouple. C) Thermistor. D) None of the above. Show Answer Correct Answer: B) Termocouple. 30. The amount of energy required to raise 1 kg of material by 1 kelvin is called specific heat. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 31. Which one is the correct formula for r? A) N$_{A}$/R. B) M/R. C) R/N$_{A}$. D) R/M. Show Answer Correct Answer: D) R/M. 32. A solid is heated until it starts to become a liquid. While it is melting, its temperature ..... A) Increases. B) Decreases. C) Stays the same. D) Expands. Show Answer Correct Answer: C) Stays the same. 33. Working principle of pressure cooker is ..... A) Boiling Point increases with increase in Pressure. B) Boiling Point decreases with increase in Pressure. C) Melting Point increases with increase in Pressure. D) None of the above. Show Answer Correct Answer: A) Boiling Point increases with increase in Pressure. 34. Sweet makers do not clean the bottom of cauldron because A) Black and rough surface absorbs more heat. B) Absorption power of black and bright surface is more. C) Transmission power of black and rough surface is more. D) Emission power of black and bright surface is more. Show Answer Correct Answer: A) Black and rough surface absorbs more heat. 35. A 0.5 kg aluminum pan (c = 900 J/kg$^\circ$C) is heated from 25$^\circ$C to 75$^\circ$C. How much heat is absorbed? A) 30, 000 J. B) 22, 500 J. C) 45, 000 J. D) 15, 000 J. Show Answer Correct Answer: B) 22, 500 J. 36. As you go higher in the earth's atmosphere, the ratio of N$_{2}$ to CO$_{2}$ molecules A) Decreases. B) Remains constant. C) Increases. D) None of given option. Show Answer Correct Answer: C) Increases. 37. The ratio of Fahreinheit scale is ..... A) 4. B) 5. C) 9. D) None of the above. Show Answer Correct Answer: C) 9. 38. The latent heat of vaporization of a substance is always A) Less than its latent heat of fusion. B) Greater than its latent heat of fusion. C) Equal to its latent heat of sublimation. D) Greater than its latent heat of sublimation. Show Answer Correct Answer: B) Greater than its latent heat of fusion. 39. Select the correct formula to calculate change in temperature. A) $\Delta$T = $\Delta$L/L$_{1 }$$\alpha$. B) $\Delta$L = L$_{1}$ $\alpha$ $\Delta$T. C) $\Delta$T = $\Delta$L $\alpha$ L$_{1}$. D) $\alpha$ = $\Delta$L/L$_{1 }$$\Delta$T. Show Answer Correct Answer: A) $\Delta$T = $\Delta$L/L$_{1 }$$\alpha$. 40. Equation for latent heat is ..... A) Q m = L. B) Q = m L. C) Q L = m. D) None of the above. Show Answer Correct Answer: B) Q = m L. 41. Which of the following is not true about evaporation? A) Only takes place at the liquid surface. B) No bubbles are formed. C) Occurs at any temperature. D) Requires an external heat source. Show Answer Correct Answer: D) Requires an external heat source. 42. Which form of energy causes water to boil? A) Light energy. B) Thermal energy. C) Sound energy. D) Mechanical energy. Show Answer Correct Answer: B) Thermal energy. 43. Thermometer should have the following properties except A) It should have a high freezing point. B) It should be visible. C) It should have a high boiling point. D) It should be a good conductor of heat. Show Answer Correct Answer: A) It should have a high freezing point. 44. A material with a(n) ..... specific heat can absorb a great deal of thermal energy without a great change in temperature. A) High. B) Low. C) All the above. D) None of the above. Show Answer Correct Answer: A) High. 45. How low does the molecular density need to be for a real gas to behave like an ideal gas? A) When the average molecular separation is double the size of the molecule. B) When the average molecular separation is greater than the size of the molecule. C) When the average molecular separation is equal to the size of the molecule. D) When the average molecular separation is smaller than the size of the molecule. Show Answer Correct Answer: B) When the average molecular separation is greater than the size of the molecule. 46. 1m$^{3 }$is equal to A) 10$^{-6}$m$^{3}$. B) 1gcm$^{-3}$. C) 10$^{-3}$m$^{3}$. D) 1000 litre. Show Answer Correct Answer: D) 1000 litre. 47. When water evaporates, A) More energetic molecules escape from the surface. B) Less energetic molecules escape from the surface. C) Molecules collide more often. D) None of the above. Show Answer Correct Answer: A) More energetic molecules escape from the surface. 48. When air is compressed, its molecules: A) Move slower. B) Move faster. C) Stay still. D) Expand. Show Answer Correct Answer: B) Move faster. 49. The phase of matter with definite volume but no definite shape is: A) Solid. B) Liquid. C) Plasma. D) Gas. Show Answer Correct Answer: B) Liquid. 50. In order for liquid water to change state into water vapor A) The liquid water needs to gain thermal energy. B) The liquid water needs to lose thermal energy. C) The liquid water needs its thermal energy to be activated. D) The liquid water needs to release thermal energy. Show Answer Correct Answer: A) The liquid water needs to gain thermal energy. 51. At what temperature do particles stop moving? A) 0$^\circ$K. B) 0$^\circ$F. C) 100$^\circ$C. D) 0$^\circ$C. Show Answer Correct Answer: A) 0$^\circ$K. 52. Which of the following best describes heat capacity? A) The amount of heat required to change a solid to liquid. B) The amount of heat needed to raise 1 g of a substance by 1$^\circ$C. C) The amount of heat lost during condensation. D) The total heat needed to raise any amount of substance by 1$^\circ$C. Show Answer Correct Answer: D) The total heat needed to raise any amount of substance by 1$^\circ$C. 53. Water from two buckets are mixed together. One bucker contains 5.0 kg of water at 20 $^\circ$C and the other contains 1.0 kg of water at 80 $^\circ$C. What is the final temperature of the mixture assuming no heat is lost to the surroundings? A) 50$^\circ$C. B) 60$^\circ$C. C) 30$^\circ$C. D) 70$^\circ$C. Show Answer Correct Answer: C) 30$^\circ$C. 54. Which of the following statements is/ are true about evaporation and boiling?1 Evaporation occurs at any temperature, but boiling occurs at a fixed temperature.2 Evaporation occurs at the surface of a liquid, but boiling occurs throughout the liquid.3 Evaporation occurs at a faster rate compared to boiling. A) 1 only. B) 1 and 2 only. C) 2 and 3 only. D) 1, 2 and 3. Show Answer Correct Answer: B) 1 and 2 only. 55. $frac{V}{T}=$ A) Charle's law of volume. B) Ideal gas equation. C) Charles's law of pressure. D) Boyle's law. Show Answer Correct Answer: A) Charle's law of volume. 56. What happens to faster particles when they collide with slower particles? A) They remain unchanged. B) They speed up. C) They disappear. D) They slow down. Show Answer Correct Answer: D) They slow down. 57. Which of the following objects would be attracted to a magnet? A) Iron nail. B) Rubber band. C) Soda can. D) Plastic spoon. Show Answer Correct Answer: A) Iron nail. 58. Two large holes are cut in a metal sheet. If the sheet is heated, how will the diameters of the holes change A) Increase. B) Decrease. C) All the above. D) None of the above. Show Answer Correct Answer: A) Increase. 59. Evaporation can occur at 0$^\circ$C A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 60. What is(are) the types of specific latent heat? A) Vaporization. B) Vaporization-fusion. C) Fusion. D) None of the above. Show Answer Correct Answer: B) Vaporization-fusion. 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