This quiz works best with JavaScript enabled. Home > Class 11 > 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 (25 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 Kinetic Energy. B) Internal Gravitational Energy. C) Internal Potential Energy. D) Internal Heat Energy. Show Answer Correct Answer: A) 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) 300 degrees celsius. B) 500 degrees celsius. C) 600 degrees celsius. D) 700 degrees celsius. Show Answer Correct Answer: A) 300 degrees celsius. 3. We can measure the specific heat capacity using A) Infrared thermometer. B) Liquid thermometer. C) Calorimeter. D) Ruler. Show Answer Correct Answer: C) Calorimeter. 4. Question 2What are the upper and lower fixed points on a Celsius scale thermometer? Upper Lower A) A The boiling point of a saturated salt solution The freezing point of salt water. B) B The normal temperature of the human body The freezing point of salt water. C) C The boiling point of pure water The freezing point of pure water. D) D The boiling point of pure water Absolute zero. Show Answer Correct Answer: C) C The boiling point of pure water The freezing point of pure water. 5. Which process involves heat but no temperature change? A) Melting. B) Heating. C) Expansion. D) Compression. Show Answer Correct Answer: A) 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) Conduction, convection, radiation. C) Absorption, reflection, diffusion. D) Evaporation, condensation, sublimation. Show Answer Correct Answer: B) Conduction, convection, radiation. 8. The molecular property of matter that explains why gases are compressible is: A) Large intermolecular distance. B) Strong attraction. C) High density. D) Fixed volume. 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 liquid lost transferred heat to the surroundings. B) The average internal kinetic energy of the molecules in the liquid decreased. C) The total internal energy of the liquid decreased. 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) Pressure. C) Volume. D) Energy. Show Answer Correct Answer: A) Temperature. 11. Which of the following materials will cool down the slowest when removed from a heat source? A) Liquid water. B) Dry air. C) Water vapor. D) Iron. Show Answer Correct Answer: A) 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) 0 J. B) 3360 J. C) 33600 J. D) 336000 J. Show Answer Correct Answer: D) 336000 J. 13. The internal potential energy of a substance increases when ..... A) It changes state from liquid to solid. B) It changes state from solid to liquid. C) It increases in temperature. D) It decreases in temperature. Show Answer Correct Answer: B) 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 fusion. B) Equal to its latent heat of sublimation. C) Less than its latent heat of fusion. D) Greater than its latent heat of sublimation. Show Answer Correct Answer: A) Greater than its latent heat of fusion. 16. When the substance melts or boils, energy is ..... A) Put in to breaking the bonds that are holding particles together. B) Released to form 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: A) 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) 14.8 g. C) 20 g. D) 15.8 g. Show Answer Correct Answer: B) 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) -60$^\circ$C. D) -40$^\circ$C. Show Answer Correct Answer: A) 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) Increase. B) Decrease. C) Remain unchanged. D) Have its shape changed. Show Answer Correct Answer: A) Increase. 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