This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 3 Heat – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 3 Heat Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the significance of the title 'Heat' in the context of the novel? A) It refers to the summer season. B) It symbolizes the pressure and challenges faced by the protagonist. C) It is the name of the baseball team. D) It represents the warmth of family relationships. Show Answer Correct Answer: B) It symbolizes the pressure and challenges faced by the protagonist. 2. Hot water rising as cooler water sinks is an example of A) Conduction. B) Convection. C) Radiation. D) Sublimation. Show Answer Correct Answer: B) Convection. 3. What is the transfer of heat by movement of liquids or gases? A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: B) Convection. 4. If two objects have different temperatures when they come in contact, heat will flow from the warmer object to the cooler one UNTIL ..... A) One reaches a temperature of zero. B) They both have an equal temperature. C) One runs out of energy. D) None of the above. Show Answer Correct Answer: B) They both have an equal temperature. 5. Which of the following is NOT a cause of urban heat islands? A) Presence of large bodies of water. B) Low levels of air pollution. C) High population density. D) Lack of vegetation. Show Answer Correct Answer: A) Presence of large bodies of water. 6. Which is more likely to have higher temperatures due to the urban heat island effect? A) City (downtown). B) Rural area. C) Residential. D) Commercial area. Show Answer Correct Answer: A) City (downtown). 7. Which object is a conductor of heat? A) Metal nail. B) A rubber band. C) A tree. D) None of the above. Show Answer Correct Answer: A) Metal nail. 8. Which of the following statements about thermal energy is true? A) As you hold a cup of hot water your hands cool the water. B) As you hold a glass of cold milk, the cold travels to your hand. C) As you hold a cup of cold milk, your hand cools the milk. D) As you hold a cup of hot water, the heat moves to your hand. Show Answer Correct Answer: D) As you hold a cup of hot water, the heat moves to your hand. 9. The students in Miss Zunz's class are learning about how different forms of energy are used. They make a chart as shown below.Electric energy:computer, freezer Heat energy:? Energy of motion:roller coaster, swing set Which of these best completes the students' chart? A) Campfire, stove. B) Light bulb, fan. C) Boiling water, pinwheel. D) Drum, trombone. Show Answer Correct Answer: A) Campfire, stove. 10. Heat exchanger is an equipment used to transfer heat from the hot fluid to cold fluid. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 11. Miranda wraps her hands around a mug of hot tea. The heat from the hot tea is being transferred to Miranda's hands primarily by A) Conduction. B) Convection. C) Absorption. D) Radiation. Show Answer Correct Answer: A) Conduction. 12. What is a substance that reduces the transfer of thermal energy? A) A conductor. B) Cheese. C) Metal. D) Insulation. Show Answer Correct Answer: D) Insulation. 13. The meridians of longitude divide the earth into heat zones. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 14. Which of the follow materials conducts heat well? A) Glass. B) Plastic. C) Metal. D) Wood. Show Answer Correct Answer: C) Metal. 15. In convection, WARM air A) Rises. B) Sinks. C) All the above. D) None of the above. Show Answer Correct Answer: A) Rises. 16. Which of the following is NOT a type of heat exchanger? A) Recovery. B) Regenerator. C) Mixer. D) None of the above. Show Answer Correct Answer: D) None of the above. 17. No more energy can be removed from matter at: A) Its freezing point. B) 0$^\circ$C. C) Absolute zero. D) 273 K. Show Answer Correct Answer: C) Absolute zero. 18. A student is mixing a cup of hot chocolate with a spoon. How is the heat transferred between the hot chocolate and the part of the spoon that is in the hot chocolate? A) Conduction transfers energy from the spoon to the hot chocolate. B) Conduction transfers energy from the hot chocolate to the spoon. C) Convection transfers energy from the spoon to the hot chocolate. D) Convection transfers energy from the hot chocolate to the spoon. Show Answer Correct Answer: B) Conduction transfers energy from the hot chocolate to the spoon. 19. What is the primary source of energy for the Earth? A) Coal. B) Wind power. C) Natural gas. D) The sun. Show Answer Correct Answer: D) The sun. 20. Heat travels from the sun to the earth by the process of ..... A) Conduction. B) Convection. C) Radiation. D) Insulation. Show Answer Correct Answer: C) Radiation. 21. Heating a pan on a stove A) Convection. B) Conduction. C) Radiation. D) None of the above. Show Answer Correct Answer: B) Conduction. 22. LABORATORY THERMOMETER- ..... A) LABORATORY PURPOSES. B) FOR HUMAN BODY. C) All the above. D) None of the above. Show Answer Correct Answer: A) LABORATORY PURPOSES. 23. Match this definition to the proper word. related to heat or temperature A) Thermal. B) Therm. C) Thermostat. D) Exothermic. Show Answer Correct Answer: A) Thermal. 24. Density of water is maximum at ..... A) 0$^\circ$C. B) 4$^\circ$C. C) 0$^\circ$C to 4$^\circ$C. D) Above 4$^\circ$C. Show Answer Correct Answer: B) 4$^\circ$C. 25. A device used to measure temperature A) Thermometer. B) Barometer. C) Blabometer. D) Hamamamometer. Show Answer Correct Answer: A) Thermometer. ← PreviousNext →Related QuizzesClass 7 Science Chapter 3 Heat Quiz 1Class 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 8Class 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