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 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Expansion during heating A) Generally decreases the density of a material. B) Is universal. C) Increases the weight of a material. D) Occurs only in solids. Show Answer Correct Answer: A) Generally decreases the density of a material. 2. When a solid is heated at its melting point A) Its temperature increases gradually. B) The size of the molecules in the solid increases. C) The size of the molecules in the solid increases. D) The total internal potential energy of the molecules in the solid increases. Show Answer Correct Answer: D) The total internal potential energy of the molecules in the solid increases. 3. Which quantity gives the thermal capacity of a beaker? A) The total volume of hot liquid that the beaker can hold. B) The total mass of hot liquid that the beaker can hold. C) The thermal energy required to raise the temperature of the beaker by 1 degree celcius. D) The thermal energy required to change the state of the beaker at constant temperature. Show Answer Correct Answer: C) The thermal energy required to raise the temperature of the beaker by 1 degree celcius. 4. Amount of heat required to change the temperature of body through 1 K is called its A) Specific heat. B) Thermal capacity. C) Entropy. D) None of the above. Show Answer Correct Answer: B) Thermal capacity. 5. Coefficient of expansion per degree centigrade of aluminum is ..... A) 17 X 10$^{-6}$. B) 19 X 10$^{-6}$. C) 25 X 10$^{-6}$. D) 11 X 10$^{-6}$. Show Answer Correct Answer: C) 25 X 10$^{-6}$. 6. What happens to the kinetic energy of molecules at absolute zero (0 K)? A) Molecules gain mass at absolute zero. B) The kinetic energy of molecules increases significantly. C) The kinetic energy of molecules becomes infinite. D) The kinetic energy of molecules approaches zero. Show Answer Correct Answer: D) The kinetic energy of molecules approaches zero. 7. What is the role of thermal expansion in materials? A) Thermal expansion causes materials to change size with temperature, impacting design and structural integrity. B) Thermal expansion increases the weight of materials under heat. C) Thermal expansion has no effect on the electrical properties of materials. D) Thermal expansion makes materials more brittle at lower temperatures. Show Answer Correct Answer: A) Thermal expansion causes materials to change size with temperature, impacting design and structural integrity. 8. Perspiration helps to keep our bodies cool because ..... When the water in our sweat evaporates, the sweat ..... and changes state from liquid to gas. Our bodies ..... thermal energy to the evaporating sweat and so we feel cool. A) Loses internal potential energy, lose. B) Gains internal potential energy, gain. C) Gains internal potential energy, lose. D) Loses internal potential energy, gain. Show Answer Correct Answer: C) Gains internal potential energy, lose. 9. Ice at 0 degC is placed in warm water. The ice melts. As ice melts, which statement is correct? A) Temperature of ice increases. B) Temperature of water increases. C) Internal energy of ice decreases. D) Internal energy of water decreases. Show Answer Correct Answer: D) Internal energy of water decreases. 10. Which property of matter increases when heat is absorbed at constant pressure? A) Mass. B) Hardness. C) Volume. D) Density. Show Answer Correct Answer: C) Volume. 11. Which statement about heat and temperature is TRUE? A) Heat and temperature are the same. B) Heat is a measure of kinetic energy, temperature is energy in transfer. C) Heat is energy in transfer; temperature measures molecular motion. D) Temperature depends on mass. Show Answer Correct Answer: C) Heat is energy in transfer; temperature measures molecular motion. 12. Throughout the changes of state e.g. liquid to gas, what does not change? A) Their strength of forces. B) The number of particles. C) Their spacing. D) None of the above. Show Answer Correct Answer: B) The number of particles. 13. Convert:25.0 $^{o}$C to $^{o}$F: A) 77 F. B) 100 F. C) 100 C. D) 77 C. Show Answer Correct Answer: A) 77 F. 14. A constant volume air thermometer works on A) Archimedes. B) Charles law. C) Boyle's law. D) Pascals law. Show Answer Correct Answer: B) Charles law. 15. When the substance is changing state, temperature A) Remains constant. B) Increases. C) Decreases. D) None of the above. Show Answer Correct Answer: A) Remains constant. 16. Why is a red-hot rivet used to join two metal plates? A) The rivet softens and melts into the metal plates. B) The rivet expands when cooled, forming a tight joint. C) The rivet contracts upon cooling, pulling the plates tightly together. D) The rivet oxidizes, creating a strong bond between plates. Show Answer Correct Answer: C) The rivet contracts upon cooling, pulling the plates tightly together. 17. Some statements about boiling and evaporation are below. Which is incorrect? A) Rate of evaporation is affected by exposed surface area of the liquid. B) Boiling forms bubbles as liquid turns to gas. C) Evaporation occurs at any temperature. D) Boiling occurs at the liquid surface. Show Answer Correct Answer: D) Boiling occurs at the liquid surface. 18. Question 10Internal energy is affected by two particles which make up a substance.Identify the two properties. A) A motion and position. B) B acceleration and mass. C) C specific heat capacity and volume. D) D state of matter and potential energy. Show Answer Correct Answer: A) A motion and position. 19. What happens when ice melts? A) The average kinetic energy of the particles in ice increases. B) The average internal energy of the ice increases. C) The average thermal energy of the particles in ice remains constant. D) The average potential energy of the particles in ice remains constant. Show Answer Correct Answer: B) The average internal energy of the ice increases. 20. Why does a gas exert more pressure when heated in a fixed container? A) The gas particles lose kinetic energy and attract each other. B) The gas particles move faster and hit the container walls more often and with greater force. C) The number of gas particles increases as the temperature rises. D) The container expands, creating more collisions. Show Answer Correct Answer: B) The gas particles move faster and hit the container walls more often and with greater force. 21. When an object has a low temperature, what do we know about the speed of the particles? A) There is no change in the particles. B) The particles move slower. C) Temperature has no impact on particle speed. D) The particles move faster. Show Answer Correct Answer: B) The particles move slower. 22. If you walk barefoot on hot asphalt, energy is transferred by which process? A) Conduction. B) Reflection. C) Convection. D) Radiation. Show Answer Correct Answer: A) Conduction. 23. "The energy required per kilogram and per degree Celsius to raise the temperature of a substance." is the definition of ..... A) Temperature. B) Specific latent heat of fusion. C) Specific latent heat of vaporization. D) Specific heat capacity. Show Answer Correct Answer: D) Specific heat capacity. 24. 50g of ice at 0oC is mixed with 50g of water at 80 deg C, final temperature of the mixture will be A) 4 degC. B) 60 deg C. C) 0 deg C. D) 40 deg C. Show Answer Correct Answer: D) 40 deg C. 25. What is the SI unit of specific heat capacity? A) J/kg. B) J/kgK. C) Cal/gK. D) J/molK. Show Answer Correct Answer: B) J/kgK. 26. A liquid changes into a gas at a constant temperature. This temperature is known as the ..... A) Boiling point. B) Evaporation point. C) Absolute zero. D) Dew point. Show Answer Correct Answer: A) Boiling point. 27. An experiment is conducted to find out the specific heat capacity of an unknown liquid X. The following data are obtained. Initial Temperature of X:25$^\circ$CFinal Temperature of X:96$^\circ$CMass of substance X:1.8 kgElectrical power rating of heater:800 WDuration of heating:5 mins What is the specific heat capacity of liquid X? A) 1880 J/(kg $^\circ$C). B) 1.88 J/(kg $^\circ$C). C) 31.3 J/(kg $^\circ$C). D) 1390 J/(kg $^\circ$C). Show Answer Correct Answer: A) 1880 J/(kg $^\circ$C). 28. Which of the following statements is/ are true when the temperature of a body rises?1 The average speed of the molecules increases.2 The internal kinetic energy of the molecules increases.3 The total internal energy of the molecules increases. A) 1 only. B) 1 and 2 only. C) 2 and 3 only. D) 1, 2 and 3. Show Answer Correct Answer: D) 1, 2 and 3. 29. The measure of the force of gravity on an object. A) Mixture. B) Weight. C) Density. D) Mass. Show Answer Correct Answer: B) Weight. 30. Cooling always accompanies evaporation because ..... A) The escaped molecules return to the liquid. B) The air molecules cool the liquid surface. C) There are fewer liquid molecules left in the liquid. D) The more energetic molecules leave the liquid. Show Answer Correct Answer: D) The more energetic molecules leave the liquid. 31. Blocks of gold are made by pouring hot, melted gold into moulds. The gold cools to its melting point and begins to solidify. As it solidifies, its temperature ..... A) Stays constant and energy is lost from the gold. B) Stays constant and no energy is lost from the gold. C) Decreases and energy is lost from the gold. D) Decreases and no energy is lost from the gold. Show Answer Correct Answer: A) Stays constant and energy is lost from the gold. 32. Water has a specific heat of 4, 186 J/(kg.K). To raise the temperature of a bathtub of water (220 kg) by 3 kelvin, it takes ..... Joules of energy. A) 2, 762, 760. B) 2, 672, 700. C) All the above. D) None of the above. Show Answer Correct Answer: A) 2, 762, 760. 33. Fill in the blank:As the temperature of a substance increases, the speed of its molecules ..... A) Remains the same. B) Stops. C) Decreases. D) Increases. Show Answer Correct Answer: D) Increases. 34. What happens to the movement of the particles in a substance when the thermal energy is increased? A) Speed Up. B) Slow Down. C) No change. D) None of the above. Show Answer Correct Answer: A) Speed Up. 35. Question 8An iron cube is heated by a Bunsen burner.Which of its properties decreases? A) D internal energy. B) C volume. C) B density. D) A mass. Show Answer Correct Answer: C) B density. 36. If temperature changes from 50$^\circ$F to 500$^\circ$F then what will be corresponding range of change on celsius scale? A) 10 to 270$^\circ$C. B) 10 to 260$^\circ$C. C) 20 to 270$^\circ$C. D) 20 to 260$^\circ$C. Show Answer Correct Answer: B) 10 to 260$^\circ$C. 37. Which has a higher specific heat, water or iron? A) Water. B) Iron. C) Both are equal. D) It depends on pressure. Show Answer Correct Answer: A) Water. 38. Evaporation is a ..... process A) Fast. B) Slow. C) All the above. D) None of the above. Show Answer Correct Answer: B) Slow. 39. Heat is associated with A) Kinetic energy of random motion of molecules. B) Kinetic energy of orderly motion of molecules. C) Total kinetic energy of random and orderly motion of molecules. D) Kinetic energy of random motion in some cases and kinetic energy of orderly motion in other. Show Answer Correct Answer: A) Kinetic energy of random motion of molecules. 40. Thermal energy always moves from ..... objects to ..... objects. A) Slower, faster. B) Warmer, cooler. C) Cooler, warmer. D) Faster, slower. Show Answer Correct Answer: B) Warmer, cooler. 41. Which of the following situations best illustrates heat transfer by convection? A) Warming your hands near a bonfire. B) Boiling water in a pot. C) Feeling heat from a light bulb. D) Touching a hot metal rod. Show Answer Correct Answer: B) Boiling water in a pot. 42. The same quantity of thermal energy is supplied to two solid objects X and Y. The temperature increase of object X is greater than the temperature increase of object Y. Which statement explains this? A) X is a better thermal conductor than Y. B) X has a lower density than Y. C) X has a lower thermal capacity than Y. D) X has a lower melting point than Y. Show Answer Correct Answer: C) X has a lower thermal capacity than Y. 43. Example for sublimate is ..... A) Water. B) Carbon Dioxide. C) Dry Ice. D) None of the above. Show Answer Correct Answer: C) Dry Ice. 44. When ice changes into water at 0$^\circ$C, 1 thermal energy is absorbed to break the intermolecular bonds between the molecules.2 its internal energy increases.3 energy is absorbed to raise the temperature. A) 1 only. B) 2 only. C) 1 and 2 only. D) 1, 2 and 3. Show Answer Correct Answer: C) 1 and 2 only. 45. Evaporation causes cooling because A) The less energetic particles escape. B) The more energetic particles escape. C) Things naturally cool down over time. D) None of the above. Show Answer Correct Answer: B) The more energetic particles escape. 46. Which of the following will expand the most for same rise in temperature A) Aluminium. B) Wood. C) Glass. D) All will expand same. Show Answer Correct Answer: A) Aluminium. 47. Latent heat of fusion for water at 1 atmospheric pressure is ..... units A) 2. 26 x 10$^{5}$. B) 3. 33 x 10$^{5}$. C) 22. 6 x 10$^{5}$. D) None of the above. Show Answer Correct Answer: B) 3. 33 x 10$^{5}$. 48. The liquid mercury range from-39$^\circ$C to ..... $^\circ$C. A) 100. B) 212. C) 350. D) None of the above. Show Answer Correct Answer: C) 350. 49. Why does the sand on a beach feel warmer in the noon sun than the water nearby? A) Water has a higher heat capacity than the sand and heats up more quickly. B) Water has a lower heat capacity than the sand and heats up more quickly. C) Water has a lower heat capacity than the sand and takes longer to heat up. D) Water has a higher heat capacity than the sand and take longer to heat up. Show Answer Correct Answer: D) Water has a higher heat capacity than the sand and take longer to heat up. 50. What is Thermal expansion? A) Is a decrease in a materials volume when temperature decreases. B) An increase in a materials volume when temperature increases. C) The transfer of thermal energy between materials by the collisions of particles. D) Chicken fried rice. Show Answer Correct Answer: B) An increase in a materials volume when temperature increases. 51. Which law relates the pressure, volume, and temperature of an ideal gas? A) Charles's Law. B) Boyle's Law. C) Avogadro's Law. D) Ideal Gas Law. Show Answer Correct Answer: D) Ideal Gas Law. 52. Specific Heat Capacity of Ethyl Alcohol is ..... A) 2.4 X 10$^{2}$. B) 2.46 X 10$^{3}$. C) 3.8 X 10$^{2}$. D) 9.2 X 10$^{2}$. Show Answer Correct Answer: B) 2.46 X 10$^{3}$. 53. Which of the following factors does thermal energy depend on? A) Temperature. B) Mass. C) Type of substance. D) All of the above. Show Answer Correct Answer: D) All of the above. 54. Why do engineers build expansion joints on bridges? A) To keep the bridge cool during summer. B) To allow the bridge to expand and contract with temperature changes without causing damage. C) To increase the strength of the bridge. D) To prevent the bridge from vibrating due to traffic. Show Answer Correct Answer: B) To allow the bridge to expand and contract with temperature changes without causing damage. 55. The amount of heat energy required to change the state of a substance from liquid to vapor form, without changing its temperature is called ..... A) Latent heat of fusion. B) Boiling point. C) Latent heat of vaporization. D) Melting point. Show Answer Correct Answer: C) Latent heat of vaporization. 56. "The energy per kilogram required to cause a substance to change state from solid to liquid at its melting point." is the definition of ..... A) Specific latent heat of fusion. B) Specific heat capacity. C) Specific latent heat of vaporization. D) Temperature. Show Answer Correct Answer: A) Specific latent heat of fusion. 57. Steam at 100$^\circ$C from a kettle condenses on a mirror. What happens to the kinetic energy and to the potential energy of the molecules during the process of condensation? A) Kinetic energy:stays the samePotential energy:stays the same. B) Kinetic energy:stays the samePotential energy:decreases. C) Kinetic energy:decreasesPotential energy:stays the same. D) Kinetic energy:decreasesPotential energy:decreases. Show Answer Correct Answer: B) Kinetic energy:stays the samePotential energy:decreases. 58. What causes the random, zig-zag movement (Brownian motion) of smoke particles suspended in air? A) Air molecules colliding with smoke particles. B) Convection currents as the hot smoke rises. C) Smoke particles reacting with oxygen molecules in the air. D) Smoke particles colliding with each other. Show Answer Correct Answer: A) Air molecules colliding with smoke particles. 59. When a body is heated, max rise will be in its A) Length. B) Surface area. C) Density. D) Volume. Show Answer Correct Answer: D) Volume. 60. Thermoelectric thermometer is based on A) Photoelectric effect. B) Joule effect. C) Seeback effect. D) Compton effect. Show Answer Correct Answer: C) Seeback effect. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 6Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 8Class 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books