This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Heat > Class 7 Science Chapter 3 Heat – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 3 Heat Quiz 13 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The transfer of heat occurs between two bodies until A) The first body has higher temperature than the second body. B) The first body has lower temperature than the second body. C) Both of them have same temperature. D) None of the above. Show Answer Correct Answer: C) Both of them have same temperature. 2. The rising of a hot air balloon A) Convection. B) Conduction. C) Radiation. D) None of the above. Show Answer Correct Answer: A) Convection. 3. The range of laboratory thermometer is generally from A) -30 to 100 degree celsius. B) 10 to 100 degree celcsius. C) -10 to 110 degree celsius. D) 0 to 100 degrre celsius. Show Answer Correct Answer: C) -10 to 110 degree celsius. 4. What is the symbol for Thermal Energy? A) M. B) C. C) Q. D) T. Show Answer Correct Answer: C) Q. 5. Energy transfer when an ice cube is put in a tray of warm water and melts A) Conduction. B) Mechanical. C) Radiation. D) Convection. Show Answer Correct Answer: A) Conduction. 6. The energy is passed from one molecule to another in a convection current. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 7. Which is true about how heat travels? A) Heat travels from a hotter region to cooler region. B) Heat travels from a cooler region to hotter region. C) All the above. D) None of the above. Show Answer Correct Answer: A) Heat travels from a hotter region to cooler region. 8. Match the definition.Caused or operated by heat that has changed into different forms of energy. A) Thermograph. B) Thermometer. C) Therm. D) Thermodynamic. Show Answer Correct Answer: D) Thermodynamic. 9. What is a material that heat travels through easily? A) A thermometer. B) An insulator. C) Air. D) A conductor. Show Answer Correct Answer: D) A conductor. 10. Yes unit of temperatures A) NEWTON. B) Kelvin. C) FAHERNITE. D) Celsius. Show Answer Correct Answer: B) Kelvin. 11. The change from a gas to a liquid is called A) Evaporation. B) Deposition. C) Sublimation. D) Condensation. Show Answer Correct Answer: D) Condensation. 12. Heat makes things ..... A) Colder. B) Warmer. C) Faster. D) None of the above. Show Answer Correct Answer: B) Warmer. 13. What is a substance that does NOT conduct heat well? A) Radiator. B) Insulator. C) Conductor. D) Convector. Show Answer Correct Answer: B) Insulator. 14. How does the heat of the Sun reaches the Earth? A) Conduction. B) Thermal expansion. C) Radiatiion. D) Convection. Show Answer Correct Answer: C) Radiatiion. 15. Where can heat come from? A) Rubbing your hands together. B) Drinking water. C) None of the above. D) All of the above. Show Answer Correct Answer: A) Rubbing your hands together. 16. All of the following are examples of convection currents, except: A) Warm air rising in a house. B) Water flowing through pipes. C) Cold water sinking to the bottom of a lake. D) Steam from hot soup rising into the air. Show Answer Correct Answer: B) Water flowing through pipes. 17. Small gaps are left between railway lines because ..... A) Rails of very long dimensions will shatter. B) Expansion of rails occurs during summer. C) Contraction of rails occurs during winter. D) Both (b) and (c). Show Answer Correct Answer: D) Both (b) and (c). 18. Energy that does need a medium (usually air or water) to transfer heat is called ..... A) Reflection. B) Conduction. C) Radiation. D) Convection. Show Answer Correct Answer: D) Convection. 19. Heat flows from a warmer place to a cooler one. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. If two glasses of water are at the same temperature, the average ..... energy of the particles are the same. A) Kinetic. B) Thermal. C) Electromagnetic. D) Heat. Show Answer Correct Answer: A) Kinetic. 21. Anything with molecules has heat. The colder the matter is the ..... the molecules move. A) Faster. B) Slower. C) All the above. D) None of the above. Show Answer Correct Answer: B) Slower. 22. The three types of heat transfer are ..... A) Spilling hot soup in your lap. B) Hot, hotter, and hottest. C) Conduction, convection and radiation. D) Conduction, convection and tickling. Show Answer Correct Answer: C) Conduction, convection and radiation. 23. A metal spoon placed in a bowl of hot soup is heated by ..... A) Convection. B) Radiation. C) Friction. D) Conduction. Show Answer Correct Answer: D) Conduction. 24. Trapped air is a good conductor because it reduces heat transfer. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 25. Aluminum changes temperature at a slower pace than lead. Aluminum has a higher A) Conduction rate. B) Specific heat. C) Thermal energy. D) Temperature. Show Answer Correct Answer: B) Specific heat. 26. You are roasting marshmallows at a campfire. The metal skewer (stick) that you're cooking your marshmallow on burns your hand because of ..... ? ..... A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: A) Conduction. 27. THE TRANSFER OF HEAT GENERALLY REQUIRES MEDIUM BUT THERE IS ONE METHOD OF HEAT TRANSFER WHERE THERE IS NO NEED OF ANY MEDIUM.NAME THE METHOD A) CONDUCTION. B) RADIATION. C) CONVECTION. D) ALL OF THE ABOVE. Show Answer Correct Answer: B) RADIATION. 28. What is the SI unit of heat? A) Fahrenheit. B) Kelvin. C) Joule. D) Celsius. Show Answer Correct Answer: C) Joule. 29. When you touch a cold window, how is energy being transferred? A) The window transfers heat to you. B) You transfer heat to the window. C) The sun transfers heat to you. D) None of the above. Show Answer Correct Answer: B) You transfer heat to the window. 30. Using the heat equation, what would the formula look like if we were solving for specific heat? A) Q=c/m$\Delta$T. B) Q=mc$\Delta$T. C) C=q/m$\Delta$T. D) C=qm$\Delta$T. Show Answer Correct Answer: C) C=q/m$\Delta$T. 31. What color reflects light (meaning the object stays cooler)? A) Black. B) Orange. C) Pink. D) White. Show Answer Correct Answer: D) White. 32. How does heat travels in air- A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: B) Convection. 33. Nights are cooler in the deserts because A) Sand radiates heat less quickly as compared to Earth. B) The sky is generally clear. C) Sand radiates heat more quickly as compared to Earth. D) The sky is generally cloudy. Show Answer Correct Answer: C) Sand radiates heat more quickly as compared to Earth. 34. What type of heat transfer is involved in cooking a s'more over a fire? A) Convection. B) Radiation. C) Conduction. D) None of the above. Show Answer Correct Answer: B) Radiation. 35. Which best explains why a refrigerator is usually not made completely out of metal? A) Metal will not transfer heat, which allows the refrigerator to remain cool. B) Metal easily transfers heat, which would warm the inside of the refrigerator. C) Metal would heat up quickly on the outside, making the door too hot to touch. D) Metal cools quickly, causing the refrigerator to be too cold and freeze the food inside. Show Answer Correct Answer: B) Metal easily transfers heat, which would warm the inside of the refrigerator. 36. The more particles a substance has at a given temperature, the more thermal energy it has. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 37. HEAT FROM THE SUN REACHES THE EARTH BY A) CONVECTION. B) CONDUCTION. C) RADITION. D) None of the above. Show Answer Correct Answer: C) RADITION. 38. The heat energy required to change 1 kg of a substance from a solid to a liquid state at the same temperature is called ..... A) Specific heat capacity. B) Sensible heat. C) Specific latent heat of vaporization. D) Specific latent heat of fusion. Show Answer Correct Answer: D) Specific latent heat of fusion. 39. The Earth is divided in ..... zones. A) 3. B) 4. C) 2. D) None of the above. Show Answer Correct Answer: A) 3. 40. Convection can take place in ..... A) Solids only. B) Liquids only. C) Liguids and gases only. D) Solids, liquids and gases. Show Answer Correct Answer: C) Liguids and gases only. 41. When cold water is added slowly to warm water they will slowly blend over time evenly through the entire liquid. Which BEST explains the reason the heat moves throught the liquid? A) The densities of the liquids are similar. B) Cold liquids rise and hot liquids sink causing mixing. C) Molecules creates chemical bonds the help spread energy. D) Heat always moves from higer temperatures to lower temperatures. Show Answer Correct Answer: D) Heat always moves from higer temperatures to lower temperatures. 42. An 25.2 g block of copper at 95.10 $^\circ$C is dropped into a calorimeter containing 75.56 g of water at 25.36 $^\circ$C. What will be the final temperature?C$_{Copper}$ =.3884 J/g * $^{o}$C A) 21.3 $^{o}$C. B) 44.9 $^{o}$C. C) 27.45 $^{o}$C. D) 33.8 $^{o}$C. Show Answer Correct Answer: C) 27.45 $^{o}$C. 43. Hot air balloon rises. A) Radiation. B) Convection. C) Adventure. D) Conduction. Show Answer Correct Answer: B) Convection. 44. Which is the major mean of heat transfer in a Double Pipe heat exchanger? A) Convection. B) Conduction. C) Radiation. D) Combined Convection and Conduction. Show Answer Correct Answer: D) Combined Convection and Conduction. 45. On a hot summer day, which shirt would you put on to make sure you stay cool while you are outside playing? A) A black shirt because it reflects the sun's energy. B) A white shirt because it absorbs the sun's energy. C) A white shirt because it reflects the sun's energy. D) A black shirt because it absorbs the sun's energy. Show Answer Correct Answer: C) A white shirt because it reflects the sun's energy. 46. Materials through which heat can flow easily is called A) Conductions. B) Insulators. C) Radiators. D) Transformers. Show Answer Correct Answer: A) Conductions. 47. The extreme range of temperature in a day is measured using A) Fahrenheit thermometer. B) Kelvin thermometer. C) Maximum-minimum thermometer. D) Celsius thermometer. Show Answer Correct Answer: C) Maximum-minimum thermometer. 48. Your best friend has a bunk bed. You move from the bottom bunk to the top bunk and notice that the air is warmer. The warm air rises because of ..... ? ..... A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: B) Convection. 49. Kim wants to know how much heat is given off by her desk lamp. What is the BEST way to measure the hear from the light bulb? A) Place a glass of ice under the lamp. B) Place a black shirt under the lamp. C) Place her hand under the lamp. D) Place a thermometer under the lamp. Show Answer Correct Answer: D) Place a thermometer under the lamp. 50. Manny puts a hot slice of pie on a plate. When he picks it up he notices that the plate feels warm. In which direction does the heat flow to make the plate feel warm? A) From the plate to the pie. B) From the pie to the plate. C) From his hand to the plate. D) From his hand to the pie. Show Answer Correct Answer: B) From the pie to the plate. 51. How does heat move? A) From a warmer to a cooler object. B) Toward a hot object. C) From a cooler to a warmer object. D) Away from a cold object. Show Answer Correct Answer: A) From a warmer to a cooler object. 52. Which of the following materials is the best conductor of heat? A) Copper. B) Glass. C) Plastic. D) Wood. Show Answer Correct Answer: A) Copper. 53. What causes water to freeze solid when placed in a freezer? The freezer- A) Puts electricity in the water. B) Does not let light shine on the water. C) Takes heat away from the water. D) Adds heat to the water. Show Answer Correct Answer: C) Takes heat away from the water. 54. The liquid (Mercury ) rises in thermometer if, kept in hot water bath because A) Liquid expands on heating. B) Liquid contracts on heating. C) Mercury moves if its disturbed. D) None of the above. Show Answer Correct Answer: A) Liquid expands on heating. 55. Ice melting in a cup is caused by ..... A) The ice is heated up by the drink. B) Ice is cooling down the liquid. C) All the above. D) None of the above. Show Answer Correct Answer: A) The ice is heated up by the drink. 56. What type of energy is heat energy? A) Mechanical. B) Potential. C) Kinectic. D) Chemical. Show Answer Correct Answer: C) Kinectic. 57. Name the device which is used to measure the hotness or coldness of an object. A) Thermometer. B) Barometer. C) Picometer. D) Manometer. Show Answer Correct Answer: A) Thermometer. 58. Calorimeters use insulating materials to: A) Prevent heat from escaping to the environment. B) Preserve the heat of the environment outside the Styrofoam cup. C) Encourage affordable materials in science experiments in schools. D) Keep the liquid inside the Styrofoam cup from overheating. Show Answer Correct Answer: A) Prevent heat from escaping to the environment. 59. Which of the following is a cooling process A) Condensation. B) Boiling. C) Evaporation. D) All the above. Show Answer Correct Answer: C) Evaporation. 60. A person calculated his body temperature to be 103$^{o}$F. What is the temperature in $^{o}$C- A) 39.4. B) 39.6. C) 40.6. D) 40.4. Show Answer Correct Answer: A) 39.4. ← PreviousNext →Related QuizzesScience QuizzesClass 7 QuizzesClass 7 Science Chapter 3 Heat Quiz 1Class 7 Science Chapter 3 Heat Quiz 2Class 7 Science Chapter 3 Heat Quiz 3Class 7 Science Chapter 3 Heat Quiz 4Class 7 Science Chapter 3 Heat Quiz 5Class 7 Science Chapter 3 Heat Quiz 6Class 7 Science Chapter 3 Heat Quiz 7Class 7 Science Chapter 3 Heat Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books