This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 3 Heat – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 3 Heat Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Even though the water in a bathtub is the same temperature of the water in a tea cup, the bathtub has more A) Radiation. B) Convection. C) Thermal energy. D) Heat. Show Answer Correct Answer: C) Thermal energy. 2. How many kinds of heat transfer are there? A) 1. B) 2. C) 3. D) 4 or more. Show Answer Correct Answer: C) 3. 3. Things get colder = ..... heat A) Loses. B) Gains. C) All the above. D) None of the above. Show Answer Correct Answer: A) Loses. 4. FUSION IS ALSO KNOWN AS A) SOLIDIFICATION. B) MELTING. C) BOILING. D) EVAPORATION. Show Answer Correct Answer: B) MELTING. 5. What is the primary reason that metals are good conductors of heat? A) They have free electrons that transfer energy. B) They have tightly packed molecules. C) They have a high specific heat capacity. D) They are dense materials. Show Answer Correct Answer: A) They have free electrons that transfer energy. 6. What is the transfer of heat by direct contact? (a) A) Convection. B) Electromagnetic waves. C) Radiation. D) A. Conduction. Show Answer Correct Answer: D) A. Conduction. 7. What kind of heat is happening when the sun heats your body A) Conduction. B) Convection. C) Density. D) Radiation. Show Answer Correct Answer: D) Radiation. 8. Heating a home can take up a lot of energy. What could save energy? A) Turning up the heater. B) Turning up the air conditioner. C) Turning down the heater when you are not home. D) Turning on the heater when you are not home. Show Answer Correct Answer: C) Turning down the heater when you are not home. 9. Which best describes how heat is transferred? A) Heat only flows within individual substances. B) Heat flows from a warmer substance to a cooler substance. C) Heat flows from a cooler substance to a warmer substance. D) Heat flows in many different directions between substances. Show Answer Correct Answer: B) Heat flows from a warmer substance to a cooler substance. 10. The amount of energy contained by a body is known as heat A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 11. Rotational motion is? A) Rotating on its own axis. B) Vibrating on its own axis. C) Moving too and fro. D) Dynamic random motion. Show Answer Correct Answer: A) Rotating on its own axis. 12. Jill notices that her skin gets burned when she sits out in the sun. What best explains why this happens? A) The soil is convecting heat into the air. B) The heat from the sun is being conducted to the Earth. C) The heat from the sun is radiating down to Earth's surface. D) None of the above. Show Answer Correct Answer: C) The heat from the sun is radiating down to Earth's surface. 13. What is the symbol for Specific Heat A) Q. B) T. C) M. D) C. Show Answer Correct Answer: D) C. 14. How does Michael's friendship with Manny impact his journey in the story? A) It distracts him from his goals. B) It provides him with emotional support. C) It creates additional challenges. D) It has no significant impact. Show Answer Correct Answer: B) It provides him with emotional support. 15. How many time zones are in the Russia altogether? A) 4. B) 8. C) 11. D) 7. Show Answer Correct Answer: C) 11. 16. Why do land breezes occur at night? A) Land cools off slower than water, so the air above water is cooler. B) Water cools off faster than land, so the air above land is warmer. C) Land heats up slower than water, so the air stays cooler during the day. D) Water cools off slower than land, so the air above water is warmer. Show Answer Correct Answer: D) Water cools off slower than land, so the air above water is warmer. 17. What is temperature? A) A form of heat. B) A form of energy. C) A measure of how old or cold something is. D) Something to measure how hot or cold an object is. Show Answer Correct Answer: C) A measure of how old or cold something is. 18. Which color absorbs the most light? A) Light Blue. B) White. C) Black. D) None of the above. Show Answer Correct Answer: C) Black. 19. Si units of specific heat A) J.kg.K. B) J/kg.K. C) Kg/J.K. D) K/J.kg. Show Answer Correct Answer: B) J/kg.K. 20. What is a good conductor of heat? A) A material that slows the transfer of heat. B) A material that transfers heat easily. C) A material that is temperature controlled. D) None of the above. Show Answer Correct Answer: B) A material that transfers heat easily. 21. Lebron James wants to play a pickup game of basketball with his friends. He needs to set his bottle of water down, but does not want it to get very hot. Where should he place his bottle so that it does not heat up very much? A) He should leave it on the black asphalt. B) He should place it in a shaded area. C) He should leave it on a metal bench because metal is a conductor and does not get very hot. D) None of the above. Show Answer Correct Answer: B) He should place it in a shaded area. 22. What is a material that allows heat to transfer easily through it? A) Conductor. B) Insulator. C) Thermometer. D) Celsius. Show Answer Correct Answer: A) Conductor. 23. When testing different material to see which is a better conductor:butter was placed on a metal knife, a plastic knife and a wooden popsicle stick, then a sugar cube was placed on top of the butter of each. The butter melts off the fastest from the better heat conductor. Which one was a better conductor? A) Wooden popsicle stick. B) Plastic knife. C) Metal knife. D) None of the above. Show Answer Correct Answer: C) Metal knife. 24. A hot air balloon rises because of A) Convection. B) Conduction. C) Radiation. D) None of the above. Show Answer Correct Answer: A) Convection. 25. Plastic foam, wood, and rubber are good examples of ..... A) Conductors. B) Insulators. C) Solar energy. D) Convection. Show Answer Correct Answer: B) Insulators. ← PreviousNext →Related 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 9Class 7 Science Chapter 3 Heat Quiz 10Class 7 Science Chapter 3 Heat Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books