This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is a condition necessary for heat transfer to occur? A) No contact. B) No medium. C) Same temperature. D) Temperature difference. Show Answer Correct Answer: D) Temperature difference. 2. During melting, thermal energy is A) Absorbed to break the strong bonds between particles. B) Released to strengthen the bonds between particles. C) Released to make the particles move faster. D) Released to make the particles move slower. Show Answer Correct Answer: A) Absorbed to break the strong bonds between particles. 3. A student heats 100 g of water from 20$^\circ$C to 40$^\circ$C. How much heat is absorbed? A) 4180 J. B) 8360 J. C) 418 J. D) 2090 J. Show Answer Correct Answer: B) 8360 J. 4. When two substances are in thermal contact, heat flows from the ..... temperature substance to the lower-temperature substance. A) Lower. B) Higher. C) Equal. D) None. Show Answer Correct Answer: B) Higher. 5. The ratio of thermal conductivity of two rods of different materials is 5:4. The two rods of same area of cross section and same thermal resistance will have lengths in the ratio A) 4:5. B) 9:1. C) 1:9. D) 5:4. Show Answer Correct Answer: D) 5:4. 6. When a gas is heated at constant pressure, what happens to its volume? A) The volume decreases because particles move slower. B) The volume remains the same because the pressure is constant. C) The volume increases as particles move faster and push the piston outward. D) The gas condenses into a liquid due to expansion. Show Answer Correct Answer: C) The volume increases as particles move faster and push the piston outward. 7. During melting and boiling, energy is ..... A) Absorbed to overcome intermolecular forces. B) Absorbed to allow the molecules to come closer together. C) Released to overcome intermolecular forces. D) Released to allow the molecules to come closer together. Show Answer Correct Answer: A) Absorbed to overcome intermolecular forces. 8. Phase change where thermal energy is removed. A) Condensation. B) Sublimation. C) Vaporization. D) Melting. Show Answer Correct Answer: A) Condensation. 9. The best ideal black body is A) Lamp of charcoal heated to high temperature. B) Metal coated with a black dye. C) Glass surface coated with coalter. D) Hollow enclosure blackened inside and having a small hole. Show Answer Correct Answer: D) Hollow enclosure blackened inside and having a small hole. 10. The internal kinetic energy of a substance depends on A) Intermolecular forces. B) How far apart the particles are. C) How fast the particles are moving. D) None of the above. Show Answer Correct Answer: C) How fast the particles are moving. 11. If the temperature of a black body increases from 7$^\circ$C to 287$^\circ$C, then the rate of energy radiation increases by A) $\left(\frac{287}{7}\right)^4$. B) 16. C) 4. D) 2. Show Answer Correct Answer: B) 16. 12. The volume of water in a beaker was 215 mL. After 5 days, the volume of the water was 200 mL. What best explains the change in volume? A) Some of the water absorbed the air. B) Some of the water evaporated and escaped into the air as water vapor. C) Some of the water disappeared. D) Some of the water was released due to condensation. Show Answer Correct Answer: B) Some of the water evaporated and escaped into the air as water vapor. 13. Why is Invar used with copper in a bimetallic strip? A) Invar expands much less than copper when heated, allowing controlled bending. B) Invar conducts heat faster than copper, preventing overheating. C) Invar has the same expansion rate as copper, ensuring stability. D) Invar melts easily and can fuse with copper. Show Answer Correct Answer: A) Invar expands much less than copper when heated, allowing controlled bending. 14. Which of the following is true when water is heated from 20$^{o}$C to 50$^{o}$C? A) Potential energy of the water particle increases. B) Kinetics energy of the water particles increase. C) Potential energy of the water particle decreases. D) Kinetics energy of the water particles decreases. Show Answer Correct Answer: B) Kinetics energy of the water particles increase. 15. A liquid turns into a gas. This occurs only at one particular temperature, and the change happens throughout the liquid.What is this process called? A) Boiling. B) Condensation. C) Evaporation. D) Fusion. Show Answer Correct Answer: A) Boiling. 16. Which factor increases the rate of evaporation? A) Lower temperature of surroundings. B) Lower humidity. C) Greater atmospheric pressure. D) Smaller surface area. Show Answer Correct Answer: B) Lower humidity. 17. If there is a change in temperature during the freezing/solidification of a substance, ..... A) The substance is a pure substance. B) The substance is not a pure substance. C) There has been an error during the experiment. D) There is not enough information to make a deduction. Show Answer Correct Answer: B) The substance is not a pure substance. 18. When bubbles are seen forming rapidly in water and the temperature of the water remains constant, A) The molecules of the water are moving further apart. B) The molecules of the water are moving faster. C) The molecules of the water are moving faster and further apart. D) None of the above. Show Answer Correct Answer: A) The molecules of the water are moving further apart. 19. The warmth you feel when you touch a hot surface is the ..... energy transferred by molecules in the surface to molecules in your fingers. A) Potential. B) Kinetic. C) Chemical. D) Nuclear. Show Answer Correct Answer: B) Kinetic. 20. Fill in the blank:Thermal equilibrium means there's no spontaneous net heat flow in ..... direction. A) Either. B) One. C) Upward. D) Downward. Show Answer Correct Answer: A) Either. 21. Mud houses are cooler in summer and warmer in winter because A) Mud is a good conductor of heat. B) Mud is superconductor of heat. C) Mud is a bad conductor of heat. D) None of the above. Show Answer Correct Answer: C) Mud is a bad conductor of heat. 22. In an adiabatic process, what happens to heat transfer? A) No heat is transferred. B) Heat is constant. C) Heat increases. D) Heat decreases. Show Answer Correct Answer: A) No heat is transferred. 23. Different amounts of energy are supplied to copper blocks of different masses. Which block experiences the greatest temperature change? A) Mass of block / kg:0.10Energy supplied / J:150. B) Mass of block / kg:0.25Energy supplied / J:380. C) Mass of block / kg:0.45Energy supplied / J:600. D) Mass of block / kg:0.80Energy supplied / J:1300. Show Answer Correct Answer: D) Mass of block / kg:0.80Energy supplied / J:1300. 24. Which state of matter has a fixed shape and volume and it's molecules move very slowly? A) Liquid. B) Gas. C) Solid. D) Plasma. Show Answer Correct Answer: C) Solid. 25. When thermal energy is increased in a solid, what change in state is happening? A) Melting. B) Evaporation. C) Freezing. D) Condensation. Show Answer Correct Answer: A) Melting. ← PreviousNext →Related QuizzesClass 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 1Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 2Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 3Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 4Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 5Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 7Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 8Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 9Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 10Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books