This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Heat > Class 7 Science Chapter 3 Heat – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 3 Heat Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Sand heats up faster because it has a lower ..... A) Heat index. B) Radiation. C) Temperature. D) Specific heat. Show Answer Correct Answer: D) Specific heat. 2. 1 kcal = ..... cal A) 10000. B) 10. C) 100. D) 1000. Show Answer Correct Answer: D) 1000. 3. The more particles a substance has, the more THERMAL energy it has. A) Trrue. B) Truue. C) Truee. D) True. Show Answer Correct Answer: D) True. 4. When a stethoscope touches your skin, what happens? A) Heat travels from the stethoscope to your skin. B) The stethoscope warms up due to humidity. C) Heat travels from your warm body to the stethoscope. D) No energy is transferred. Show Answer Correct Answer: C) Heat travels from your warm body to the stethoscope. 5. Biology is the study of What? A) Sandwich. B) Life. C) The human brain. D) Weather. Show Answer Correct Answer: B) Life. 6. Sunlight is a form of radiation (heat transfer) A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. What happens when a cold drink sits in a hot room? A) It remains cold. B) It starts freezing. C) It starts boiling. D) It gets warmer. Show Answer Correct Answer: D) It gets warmer. 8. On a hot summer day, a student dropped an ice cube onto a park bench. Within minutes, the ice cube melted. Which best describes the process the student observed? A) Radiation. B) Convection. C) Combustion. D) Conduction. Show Answer Correct Answer: D) Conduction. 9. The kind of heat transfer that travels through space in electromagnetic waves is ..... A) Insulation. B) Conduction. C) Radiation. D) Convection. Show Answer Correct Answer: C) Radiation. 10. All of the following are examples of friction EXCEPT ..... A) Fireplace. B) Rubbing hands together. C) Wheels braking on the road. D) Sliding on the carpet. Show Answer Correct Answer: A) Fireplace. 11. Choose the correct type of heat transfer:a greenhouse A) Convection. B) Conduction. C) Radiation. D) None of the above. Show Answer Correct Answer: A) Convection. 12. Heat from the Sun reaches Earth through which type of heat transfer? A) Conduction. B) Radiation. C) Convection. D) All of the above. Show Answer Correct Answer: B) Radiation. 13. All matter is made up of that are constantly moving A) Conductors. B) Molecules. C) Pieces. D) Insulators. Show Answer Correct Answer: B) Molecules. 14. Which of the following is a method of heat transfer that does not require a medium? A) Evaporation. B) Radiation. C) Conduction. D) Convection. Show Answer Correct Answer: B) Radiation. 15. Stainless steel pans are usually provided with copper bottoms. The reason for this could be that: A) Such pans appear colourful. B) Copper is easier to clean than the stainless steel. C) Copper bottom makes the pan more durable. D) Copper is a better conductor of heat than the stainless steel. Show Answer Correct Answer: D) Copper is a better conductor of heat than the stainless steel. 16. Unit of measurement of temperature is A) Degree celsius. B) Seconds. C) Kilogram. D) Meter. Show Answer Correct Answer: A) Degree celsius. 17. Conduction is the method of transfer of heat in A) Vaccum. B) Gases. C) Solids. D) Liquid. Show Answer Correct Answer: C) Solids. 18. When things are cold molecules are moving ..... A) Fast. B) They are not moving. C) They are moving by not fast or slow. D) Slow. Show Answer Correct Answer: D) Slow. 19. What are the units for specific heat capacity? A) Kg $^\circ$C / J. B) J / kg. C) J / $^\circ$ C. D) J kg / $^\circ$C. E) J / kg / $^\circ$C. Show Answer Correct Answer: E) J / kg / $^\circ$C. 20. John has a fever. His mother puts a cold towel on his forehead. Which of the following is correct? A) Temperature flows from John's forehead to the towel. B) Heat flows from the towel to John's forehead. C) Temperature flows from the towel to John's forehead. D) Heat flows from John's forehead to the towel. Show Answer Correct Answer: D) Heat flows from John's forehead to the towel. 21. Which of the following will cause the fastest change in temperature of an ice cube? A) Ice cube in a pot of boiling water. B) Ice cube on a plate at room temperature. C) Ice cube in a pot of warm water. D) Ice cube in a pot of cold water. Show Answer Correct Answer: A) Ice cube in a pot of boiling water. 22. This list shows some sources of heat.1 rays of the sun 2 electric space heater 3 oven with a fan 4 hot plateWhich source(s) will transfer heat through convection? A) Only. B) And only. C) And only. D) None of the above. Show Answer Correct Answer: B) And only. 23. When you heat up an object, the particles in the object move ..... A) Faster. B) The same speed. C) Slower. D) None of the above. Show Answer Correct Answer: A) Faster. 24. When air is heated, its volume ..... A) Increases. B) Decreases. C) Remains the same. D) None of the above. Show Answer Correct Answer: A) Increases. 25. When Water Turns into gas it is called? A) Water Vapor. B) Darth steam. C) Melts. D) None of the above. Show Answer Correct Answer: A) Water Vapor. 26. When baking brownies in a glass pan, the heat from the oven ..... through the clear glass, baking the brownies through ..... A) Conducts heat, conduction. B) Radiates, radiation. C) Rotates, convection. D) None of the above. Show Answer Correct Answer: B) Radiates, radiation. 27. Joe wants to slide down on a sunny day, but the slide is too hot. Which is most likely the reason for the slide being hot? A) Transpiration from the sun. B) Conduction from the sun. C) Radiation from the sun. D) Convection from the sun. Show Answer Correct Answer: C) Radiation from the sun. 28. How does Michael's relationship with his brother Carlos evolve throughout the story? A) They grow apart due to misunderstandings. B) They become closer and more supportive of each other. C) They remain distant and indifferent. D) They frequently argue and fight. Show Answer Correct Answer: B) They become closer and more supportive of each other. 29. Rate of evaporation of a liquid depends on A) Surface area. B) Temperature. C) Amount of water vapour. D) All of the above. Show Answer Correct Answer: D) All of the above. 30. Name the Main Source of Heat A) SUN, ELECTRICITY FIRE. B) SUN, ELECTRICITY, BULB. C) LAMP, UNLIGHTED CANDLE, BRICK. D) ASBESTOS, WOOD, PLASTICS. Show Answer Correct Answer: A) SUN, ELECTRICITY FIRE. 31. Translational motion is A) Rotational in nature. B) Moving to and fro. C) Stationary. D) Dynamic random motion. Show Answer Correct Answer: B) Moving to and fro. 32. Calculate the change in length of a 100mm aluminium bar that has increased in temperature by 55$^\circ$C. Take the coefficient of expansion to be 25 x 10$^{-6}$ A) 1. B) 0.258mm. C) 0.1375mm. D) 1. Show Answer Correct Answer: C) 0.1375mm. 33. Which word means the same as transfer? A) Heat. B) Float. C) Move. D) Fast. Show Answer Correct Answer: C) Move. 34. A measure of how hot or cold something is; specifically a measure of the average kinetic energy of the particles in an object. A) Specific Heat. B) Temperature. C) Thermometer. D) Absolute Zero. Show Answer Correct Answer: B) Temperature. 35. True or False:Electromagnetic waves are emitted by the sun. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 36. Which type of heat transfer occurs through the movement of particles in a fluid? A) Conduction. B) Radiation. C) Evaporation. D) Convection. Show Answer Correct Answer: D) Convection. 37. In an endothermic reaction the system is releasing energy. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 38. Heat being transferred by wind A) Radiation. B) Convection. C) Hurricane. D) Conduction. Show Answer Correct Answer: B) Convection. 39. There are 2 pans of water, one has 100 mL in it and one has 1000mL. You add 4000 joules of energy, which one has the bigger change in temperature? A) 100 mL. B) 1000 mL. C) They the same material so they both heat to the same temperature. D) They both will cool down. Show Answer Correct Answer: A) 100 mL. 40. What is Conduction? A) When heat is passed from particle to particle through an object. B) When particles get heated, expand, and become less dense. C) When heat transfers by waves through empty space. D) None of the above. Show Answer Correct Answer: A) When heat is passed from particle to particle through an object. 41. A pan containing hot water is left on the counter and becomes cool mainly due to A) Heat from the water moving into the cooler air. B) Cold air penetrating the hot water. C) Hot water reacting with the metal pan. D) Water molecules moving apart. Show Answer Correct Answer: A) Heat from the water moving into the cooler air. 42. Which of these processes is the result of the motion of particles in a gas or liquid? A) Convection. B) Insulation. C) Radiation. D) Conduction. Show Answer Correct Answer: A) Convection. 43. At what temperature on the Fahrenheit scale does water freeze? A) 212 degrees. B) 32 degrees. C) 0 degrees. D) 98.7 degrees. Show Answer Correct Answer: B) 32 degrees. 44. You get sunburned due to ..... from the sun. A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: C) Radiation. 45. Mr. Olivares drinks coffee on his way to work. Today, he poured it into a metal travel mug instead of a paper cup. What will he most likely notice about the temperature of his coffee when he gets to work? A) His coffee will be colder, because the is mug is taller. B) His coffee will still be hot, because the mug is taller. C) His coffee will be colder, because the mug is metallic. D) His coffee will still be hot, because the mug is metallic. Show Answer Correct Answer: D) His coffee will still be hot, because the mug is metallic. 46. What is the measure of thermal energy? A) Celsius. B) Fahrenheit. C) Thermometer. D) Temperature. Show Answer Correct Answer: D) Temperature. 47. This is the total energy of all the particles in an object. A) Heat. B) Kinetic energy. C) Thermal energy. D) Temperature. Show Answer Correct Answer: C) Thermal energy. 48. If heated, water can become a ..... known as water vapor. A) Gas. B) Solid. C) Liquid. D) None of the above. Show Answer Correct Answer: A) Gas. 49. What happens during heat gain? A) The object will expand. B) The object will contract. C) All the above. D) None of the above. Show Answer Correct Answer: A) The object will expand. 50. When a piece of aluminum foil is taken out of the oven and cools from 100$^\circ$ C to 50$^\circ$C, What is the change in temperature? A) 150$^\circ$. B) 100$^\circ$. C) 0$^\circ$. D) 50$^\circ$. Show Answer Correct Answer: D) 50$^\circ$. 51. ..... is to measure how hot or how cold something is. A) Temperature. B) Temparature. C) Temperature. D) None of the above. Show Answer Correct Answer: A) Temperature. 52. An example of insulators of heat is A) ALUMINIUM. B) PLASTIC. C) IRON. D) None of the above. Show Answer Correct Answer: B) PLASTIC. 53. We measure ..... with Celsius or Fahrenheit degrees. A) Temperature. B) Thermometer. C) Barometer. D) None of the above. Show Answer Correct Answer: A) Temperature. 54. It is the ultimate source of heat. A) The electricity. B) The man. C) The Moon. D) The Sun. Show Answer Correct Answer: D) The Sun. 55. The word Latent means A) Unknown. B) Hidden. C) Mysterious. D) Private. Show Answer Correct Answer: B) Hidden. 56. A house burns down. The vinyl siding of the house next door warps due to A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: C) Radiation. 57. Convert:253 C to K: A) 186 K. B) 0 K. C) 526 K. D) 625 K. Show Answer Correct Answer: C) 526 K. 58. A dryer heats clothes to dry by using ..... A) Sending heat waves through radiation to the clothes. B) Forcing hot air over the clothes through forced convection. C) Direct contact with the heat element to the clothes through conduction. D) None of the above. Show Answer Correct Answer: B) Forcing hot air over the clothes through forced convection. 59. About 30% of the sun's incoming energy never reaches Earth because it is ..... A) Absorbed by the ocean. B) Trapped by the gravitational pull between the moon and the Earth. C) Reflected back into space. D) Destroyed by the ozone layer. Show Answer Correct Answer: C) Reflected back into space. 60. During CONDUCTION heat is transferred by the movement of currents within a fluid. A) False, convection. B) False, radiation. C) True. D) Truee. Show Answer Correct Answer: A) False, convection. ← 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 6Class 7 Science Chapter 3 Heat Quiz 7Class 7 Science Chapter 3 Heat Quiz 8Class 7 Science Chapter 3 Heat Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books