This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 3 Heat – Quiz 29 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 3 Heat Quiz 29 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The temperature of a steel rod is 330K. Its temperature $^\circ$C is ..... ( ) A) 45$^\circ$c. B) 57$^\circ$c. C) 59$^\circ$C. D) 63$^\circ$c. Show Answer Correct Answer: B) 57$^\circ$c. 2. What is the total amount of heat needed to change 2.25 kg of silver at 0.0$^\circ$C to 200.0$^\circ$C? The specific heat of silver is 0.129 J/g$^\circ$C A) 58, 050 J. B) 27, 912.5. C) All the above. D) None of the above. Show Answer Correct Answer: A) 58, 050 J. 3. How does Michael's relationship with his brother Carlos influence his actions in 'Heat'? A) Carlos is a negative influence. B) Carlos provides guidance and support. C) Carlos is indifferent to Michael's struggles. D) Carlos competes with Michael. Show Answer Correct Answer: B) Carlos provides guidance and support. 4. What is the range of clinical thermometer in degree ceisius A) 30-40. B) 35-42. C) 35-45. D) None of the above. Show Answer Correct Answer: B) 35-42. 5. Which of these is a good thermal conductor? A) Plastic. B) Wood. C) Copper. D) None of the above. Show Answer Correct Answer: C) Copper. 6. How does Michael's passion for baseball influence his relationship with his father? A) It causes tension between them. B) It strengthens their bond. C) It leads to misunderstandings. D) It has no effect on their relationship. Show Answer Correct Answer: B) It strengthens their bond. 7. Thermal energy can be measured as ..... A) Temperature. B) Sound degrees. C) Pounds. D) Money. Show Answer Correct Answer: A) Temperature. 8. When you hold your hands by a fire what type of heat transfer is warming your hands? A) Convection. B) Conduction. C) Radiation. D) Dance magic. Show Answer Correct Answer: C) Radiation. 9. What is an object that prevents, or slows down, the transfer of heat? A) Conductor. B) Insulator. C) Thermometer. D) Celsius. Show Answer Correct Answer: B) Insulator. 10. The state that matter exists in depends on its A) Volume. B) Weight. C) Temperature. D) Mass. Show Answer Correct Answer: C) Temperature. 11. Choose the formula that correctly relates density, mass and volume. A) Density = Volume x Mass. B) Mass = Density / Volume. C) Density = Mass / Volume. D) None of the above. Show Answer Correct Answer: C) Density = Mass / Volume. 12. What is an insulator of heat?(insulator = poor conductor) 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: A) A material that slows the transfer of heat. 13. On what kind of day will ice most likely melt quickly? A) A hot, sunny day. B) A cold, snowy day. C) A warm, rainy day. D) A cool, clear day. Show Answer Correct Answer: A) A hot, sunny day. 14. When two things are the same temperature: A) They have the same number of molecules. B) Their molecules stop moving. C) Their molecules move at the same average speed. D) Heat transfer between the two things stops. Show Answer Correct Answer: C) Their molecules move at the same average speed. 15. Why would someone tell you to rub your hands together? A) To create electrical energy. B) To trap heat from the air. C) Your hands create friction, which creates heat. D) None of the above. Show Answer Correct Answer: C) Your hands create friction, which creates heat. 16. A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of ..... A) Convection. B) Radiation. C) Conduction. D) None of the above. Show Answer Correct Answer: C) Conduction. 17. If two substances have the same AVERAGE kinetic energy, then A) They have equal thermal energy. B) They have the same temperature. C) They have the same specific heat. D) None of the above. Show Answer Correct Answer: B) They have the same temperature. 18. How does energy transfer from the Sun to Earth? A) Radiation. B) Convection. C) Conduction. D) Transformation. Show Answer Correct Answer: A) Radiation. 19. (b) Evaporation takes place only from the surface of the liquid. A) FALSE. B) TRUE. C) All the above. D) None of the above. Show Answer Correct Answer: B) TRUE. 20. Chloroplast present in A) Animal cells. B) Bacteria. C) Leaf. D) None of the above. Show Answer Correct Answer: B) Bacteria. 21. Why do metal pans often have wooden handles? A) Metal heats slower than wood. B) Wood does not conduct heat as well as metal. C) Metal gets heavier as it is heated. D) Wood burns to make heat and metal does not. Show Answer Correct Answer: B) Wood does not conduct heat as well as metal. 22. What is a temperature scale with the freezing point of water at 32 degrees and the boiling point of 212 degrees? A) Celsius. B) Fahrenheit. C) Thermal. D) Confusing. Show Answer Correct Answer: B) Fahrenheit. 23. 20 g of water. specific heat of water is 4.18 J/g$^\circ$C. temperature changes from 25$^\circ$ C to 20$^\circ$ C, how much heat energy (Q) moves from the water to the surroundings? A) 418 J. B) 209 J. C) 83 J. D) 4.18 J. Show Answer Correct Answer: A) 418 J. 24. Choose the letter of the correct answer.1. What method of heat transfer requires direct contact between objects? A) Convection. B) Radiation. C) Conduction. D) Sublimation. Show Answer Correct Answer: C) Conduction. 25. Which one of these things can a thermal insulator NOT do? A) Keep warm things warm. B) Make cold things hot. C) Keep cold things cool. D) None of the above. Show Answer Correct Answer: B) Make cold things hot. ← 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 8Class 7 Science Chapter 3 Heat Quiz 9Class 7 Science Chapter 3 Heat Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books