This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 3 Heat – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 3 Heat Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. 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. 3. 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) 0.258mm. B) 0.1375mm. C) 1. D) 1. Show Answer Correct Answer: B) 0.1375mm. 4. Which word means the same as transfer? A) Heat. B) Move. C) Float. D) Fast. Show Answer Correct Answer: B) Move. 5. A measure of how hot or cold something is; specifically a measure of the average kinetic energy of the particles in an object. A) Thermometer. B) Temperature. C) Absolute Zero. D) Specific Heat. Show Answer Correct Answer: B) Temperature. 6. 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. 7. Which type of heat transfer occurs through the movement of particles in a fluid? A) Evaporation. B) Conduction. C) Convection. D) Radiation. Show Answer Correct Answer: C) Convection. 8. 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. 9. Heat being transferred by wind A) Conduction. B) Convection. C) Radiation. D) Hurricane. Show Answer Correct Answer: B) Convection. 10. 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. 11. 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. 12. A pan containing hot water is left on the counter and becomes cool mainly due to A) Water molecules moving apart. B) Cold air penetrating the hot water. C) Heat from the water moving into the cooler air. D) Hot water reacting with the metal pan. Show Answer Correct Answer: C) Heat from the water moving into the cooler air. 13. Which of these processes is the result of the motion of particles in a gas or liquid? A) Conduction. B) Convection. C) Insulation. D) Radiation. Show Answer Correct Answer: B) Convection. 14. At what temperature on the Fahrenheit scale does water freeze? A) 212 degrees. B) 0 degrees. C) 32 degrees. D) 98.7 degrees. Show Answer Correct Answer: C) 32 degrees. 15. 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. 16. 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. 17. What is the measure of thermal energy? A) Temperature. B) Fahrenheit. C) Celsius. D) Thermometer. Show Answer Correct Answer: A) Temperature. 18. This is the total energy of all the particles in an object. A) Temperature. B) Kinetic energy. C) Heat. D) Thermal energy. Show Answer Correct Answer: D) Thermal energy. 19. 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. 20. 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. 21. 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) 50$^\circ$. B) 0$^\circ$. C) 100$^\circ$. D) 150$^\circ$. Show Answer Correct Answer: A) 50$^\circ$. 22. ..... 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. 23. An example of insulators of heat is A) ALUMINIUM. B) PLASTIC. C) IRON. D) None of the above. Show Answer Correct Answer: B) PLASTIC. 24. We measure ..... with Celsius or Fahrenheit degrees. A) Temperature. B) Thermometer. C) Barometer. D) None of the above. Show Answer Correct Answer: A) Temperature. 25. It is the ultimate source of heat. A) The Sun. B) The Moon. C) The electricity. D) The man. Show Answer Correct Answer: A) The Sun. ← 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