This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Heat > Class 7 Science Chapter 3 Heat – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 3 Heat Quiz 14 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A 125.3 g sample of aluminum at a temperature of 36.2$^{o}$C is placed in a freezer. What will be the final temperature of the aluminum sample if the freezer extracts 896.3 j of energy? (C$_{Al =.9025 j/g*}$$^{o}$$_{C)}$ A) -7.9 $^{o}$C. B) 44.1 $^{o}$C. C) 7.9 $^{o}$C. D) 28.3 $^{o}$C. Show Answer Correct Answer: D) 28.3 $^{o}$C. 2. A circular flow of warmer fluid and cooler fluid is called a ..... A) Conduction Current. B) Convection Current. C) Radiation Current. D) None of the above. Show Answer Correct Answer: B) Convection Current. 3. When water is heated on a stove, which process primarily causes the water at the bottom to rise to the top? A) Conduction. B) Convection. C) Radiation. D) Evaporation. Show Answer Correct Answer: B) Convection. 4. Heat energy makes things ..... A) Warmer. B) Cooler. C) Do nothing. D) None of the above. Show Answer Correct Answer: A) Warmer. 5. What is the SI unit of temparature A) Kelvin. B) Celsius. C) Farhenheit. D) None of these. Show Answer Correct Answer: A) Kelvin. 6. How many degrees is the equator towards the north or south? A) 0 degrees. B) 23.5 degrees. C) 66.5 degrees. D) None of the above. Show Answer Correct Answer: A) 0 degrees. 7. What is formula of Force? A) Net force * Mass. B) Mass / Acceleration. C) Sandwich. D) Mass / Velocity. Show Answer Correct Answer: B) Mass / Acceleration. 8. Which question would help a student find out if friction is a source of heat energy? A) How long does it take water to boil on the stove?. B) What causes the ice cubes to melt in a glass of ice water?. C) Do objects feel warmer after rubbing them together?. D) Why does snow disappear in the spring?. Show Answer Correct Answer: C) Do objects feel warmer after rubbing them together?. 9. In how many categories heat exchangers are classified on the basis of direction of flow of fluids? A) 3. B) 1. C) 2. D) 4. Show Answer Correct Answer: A) 3. 10. Which of these is an insulator of heat A) Iron. B) Air. C) Copper. D) Steel. Show Answer Correct Answer: B) Air. 11. An example of radiated heat is: A) Heating a hot dog on a frying pan. B) The sun's rays reaching our skin. C) Burning your hand on a hot stove. D) . cooking a hot dog in boiling water. Show Answer Correct Answer: B) The sun's rays reaching our skin. 12. If a black jar of water and a white jar of water were placed in sunlight all day ..... A) The temperature in the white jar would increase the fastest. B) Both jars would increase the same amount. C) The temperature in the black jar would increase the fastest. D) Both jars would get so hot they would explode. Show Answer Correct Answer: C) The temperature in the black jar would increase the fastest. 13. The term ABSOLUTE ZERO refers to what temperature? A) 0$^{ o}$C. B) 0$^{ o}$F. C) 0 K. D) None of the above. Show Answer Correct Answer: C) 0 K. 14. How does removing heat change the particles in a closed system? A) Particles move apart. B) Particles slow down and break apart. C) Particles move faster and potentially change phases. D) Particles move slower and potentially change phases. Show Answer Correct Answer: D) Particles move slower and potentially change phases. 15. To save on heating bills, a roof of a building should be lined with which of the following? A) A thermal conductor. B) A thermal insulator. C) Nothing. D) None of the above. Show Answer Correct Answer: B) A thermal insulator. 16. What is the unit of Temperature? A) Joule. B) Heat. C) Kelvin. D) Metre. Show Answer Correct Answer: C) Kelvin. 17. Things that give off light often give off heat as well. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. The addition of 485 J of energy increases the temperature of a 47.3 g sample of a metal from 25.6$^{o}$C to 45.3$^{o}$C. What is the specific heat capacity of this metal? A) .520 J/g*$^{o}$C. B) .385 J/g*$^{o}$C. C) .226 J/g*$^{o}$C. D) .401 J/g*$^{o}$C. Show Answer Correct Answer: A) .520 J/g*$^{o}$C. 19. Ray holds an ice cube in his hand. After some time passes, the ice cube begins to melt. Which word describes the process of heat transfer? A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: A) Conduction. 20. A sunburn is caused by A) Convection. B) Conduction. C) Radiation. D) None of these. Show Answer Correct Answer: C) Radiation. 21. What unit do you use to measure Thermal Energy? A) J/kg $^\circ$C. B) $^\circ$C. C) J. D) Kg. Show Answer Correct Answer: C) J. 22. It is the transfer of heat from one place to another by the movement of molecules. A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: B) Convection. 23. The maximum and minimum temperature of a day is measured with a A) Celsius thermometer. B) Fahrenheit thermometer. C) Kelvin thermometer. D) Maximum and minimum thermometer. Show Answer Correct Answer: D) Maximum and minimum thermometer. 24. The temperature range of clinical thermometer is from ..... to ..... A) 44$^\circ$C to 52$^\circ$C. B) 39$^\circ$C to 42$^\circ$C. C) 35$^\circ$C to 42$^\circ$C. D) 37$^\circ$C to 45$^\circ$C. Show Answer Correct Answer: C) 35$^\circ$C to 42$^\circ$C. 25. What was the first animal sent into Space? A) Laika the dog. B) Alfred the Monkey. C) Sandwich. D) Urusula the fish. Show Answer Correct Answer: A) Laika the dog. 26. In what way does the Sun warm Earth? A) Condensation. B) Radiation. C) Convection. D) Conduction. Show Answer Correct Answer: B) Radiation. 27. An example of the conductors of heat is A) ALUMINIUM. B) WOOD. C) PLASTIC. D) None of the above. Show Answer Correct Answer: A) ALUMINIUM. 28. Normal temperature of human body in degree celsius is A) 37. B) 40. C) 35. D) 42. Show Answer Correct Answer: A) 37. 29. The normal temperature of the human body is ..... A) 0$^\circ$c. B) -110$^\circ$c. C) 37$^\circ$c. D) None of the above. Show Answer Correct Answer: C) 37$^\circ$c. 30. A wooden, plastic, and metal spoon are placed in hot water. Which spoon would get hot the fastest? A) Wooden. B) Plastic. C) Metal. D) None. Show Answer Correct Answer: C) Metal. 31. Solid, liquid and gas ..... when it gains heat. A) Contract. B) Expand. C) All the above. D) None of the above. Show Answer Correct Answer: B) Expand. 32. If I have a cup filled with ice and water, where will the heat move from to melt the ice? A) From the water into the ice. B) From the water into the air. C) From the ice into the water. D) From the cup to the air. Show Answer Correct Answer: A) From the water into the ice. 33. LABORATORY THERMOMETER range? A) -110$^{0}$C TO 10$^{0}$C. B) -10$^{0}$C TO 110$^{0}$C. C) 0$^{0}$C TO 110$^{0}$C. D) None of the above. Show Answer Correct Answer: B) -10$^{0}$C TO 110$^{0}$C. 34. How many degrees does the earth cover in 24 hours? A) 360 degrees. B) 356 degrees. C) 635 degrees. D) 563 degrees. Show Answer Correct Answer: A) 360 degrees. 35. Water bubbles up through a hot spring at National Yellowstone Park. What method of heat transfer is this? A) Conduction. B) Radiation. C) Specific heat. D) Convection. Show Answer Correct Answer: D) Convection. 36. What is the primary theme of the novel 'Heat' by Mike Lupica? A) Friendship and loyalty. B) Overcoming adversity. C) The importance of family. D) The pursuit of dreams. Show Answer Correct Answer: D) The pursuit of dreams. 37. The thermometers used to measure temperature are called ..... A) Maximum-minimum temprate. B) Maximum-Minimum Temperature. C) Maxmum-minimum temprate. D) Minimum-maximum temptrate. Show Answer Correct Answer: B) Maximum-Minimum Temperature. 38. Without the sun's heat, what would happen to earth? A) Aliens would invade. B) The earth would explode. C) It would be too cold to survive. D) None of the above. Show Answer Correct Answer: C) It would be too cold to survive. 39. A solar oven uses what kind of heat energy to cook food? A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: C) Radiation. 40. Beach sand getting warmed by the sun A) Radiation. B) Sun bathing. C) Convection. D) Conduction. Show Answer Correct Answer: A) Radiation. 41. Heat transfer occurs A) In many directions. B) Both from warm to cold and cold to warm. C) Only from warm to cold. D) Only from cold to warm. Show Answer Correct Answer: C) Only from warm to cold. 42. Ice floats on water because density of ice is ..... density of water A) Equal to. B) Less than. C) Greater than. D) None. Show Answer Correct Answer: B) Less than. 43. Which best describes the transfer of heat due to the movement of gases and liquids? A) Convection. B) Condensation. C) Evaporation. D) Radiation. Show Answer Correct Answer: A) Convection. 44. The process of escaping of molecules from the surface of a liquid at any temperature is called A) Condensation. B) Melting. C) Freezing. D) Evaporation. Show Answer Correct Answer: D) Evaporation. 45. Frigid zone is the coldest zone of the Earth. It receives very less heat because therays of the Sun are very ..... here. A) Opposite. B) Slanted. C) Direct. D) Straight. Show Answer Correct Answer: B) Slanted. 46. The chart below lists the specific heat capacity of four different metals of equal mass. If the temperature of each metal were increased from 30$^\circ$C to 40$^\circ$C, which metal would require the highest amount of heat to raise its temperature? A) Tin. B) Iron. C) Zinc. D) Aluminum. Show Answer Correct Answer: D) Aluminum. 47. The work done in an adiabatic change in a perticular gas depends upon only A) Change in volume. B) Change in pressure. C) Change in temperature. D) None of above. Show Answer Correct Answer: C) Change in temperature. 48. Which of the following is neededfor convection to happen? A) Eletromegnetic waves. B) Light in form of rays. C) Fluid/Gas. D) Fire. Show Answer Correct Answer: C) Fluid/Gas. 49. What is meant by enthalpy change? A) Change in heat energy. B) Change in potential energy. C) Change in light energy. D) Change in kinetic energy. Show Answer Correct Answer: A) Change in heat energy. 50. Which shows an example of convection? A) Jose cooks an egg in a pot of boiling water. B) Clara burns her hand by touching a light bulb. C) Lucy wraps herself in an electric blanket to keep warm. D) Ben holds the end of a metal rod in fire to cook hot dogs. Show Answer Correct Answer: A) Jose cooks an egg in a pot of boiling water. 51. When a SOLID changes to a LIQUID, it A) Freezes. B) Boils. C) Melts. D) None of the above. Show Answer Correct Answer: C) Melts. 52. What is the correct SI unit for energy? (provide the correct name and symbol) A) Calorie, C. B) Joule, j. C) Kelvin, K. D) Temperature, C. Show Answer Correct Answer: B) Joule, j. 53. Food that is cooking on the stove is an example of what kind of energy? A) Heat. B) Nuclear. C) Light. D) None of these. Show Answer Correct Answer: A) Heat. 54. In an experiment, a student places a thermometer in a cup of hot water and observes the temperature rise. What type of heat transfer is primarily responsible for this observation? A) Convection. B) Conduction. C) Evaporation. D) Radiation. Show Answer Correct Answer: B) Conduction. 55. Radiation is the movement of heat in electromagnetic waves A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 56. Thermoses work because they minimize which kinds of heat transfer? A) Conduction and convection. B) Conduction and radiation. C) Convection and radiation. D) Conduction, convection and radiation. Show Answer Correct Answer: B) Conduction and radiation. 57. The amount of energy needed to change 1 kg of a substance by 1 degree celsius is its A) Thermal energy. B) Specific heat. C) Temperature. D) None of the above. Show Answer Correct Answer: B) Specific heat. 58. Gina takes some enchiladas out of the oven. Why would she use oven mitts? A) To have smoother hands. B) To not get dirty. C) To protect her hands. D) Because she wanted to be warmer. Show Answer Correct Answer: C) To protect her hands. 59. Choose the correct type of heat transfer:boiling water A) Convection. B) Conduction. C) Radiation. D) None of the above. Show Answer Correct Answer: A) Convection. 60. What is an insulator? A) A material that heat moves through easily. B) A material that heat does not move through easily. C) A tool for measuring temperature. D) A material that turns cold when heated. Show Answer Correct Answer: B) A material that heat does not move through easily. ← 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