This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 3 Heat – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 3 Heat Quiz 11 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What happens when a cold drink sits in a hot room? A) It remains cold. B) It gets warmer. C) It starts boiling. D) It starts freezing. Show Answer Correct Answer: B) It gets warmer. 2. Device used for measuring temperature A) Thermometer. B) Ammeter. C) Anemometer. D) Voltmeter. Show Answer Correct Answer: A) Thermometer. 3. 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) Combustion. C) Conduction. D) Convection. Show Answer Correct Answer: C) Conduction. 4. The kind of heat transfer that travels through space in electromagnetic waves is ..... A) Insulation. B) Radiation. C) Conduction. D) Convection. Show Answer Correct Answer: B) Radiation. 5. 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. 6. 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. 7. 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. 8. All matter is made up of that are constantly moving A) Conductors. B) Insulators. C) Molecules. D) Pieces. Show Answer Correct Answer: C) Molecules. 9. Which of the following is a method of heat transfer that does not require a medium? A) Conduction. B) Convection. C) Radiation. D) Evaporation. Show Answer Correct Answer: C) Radiation. 10. Stainless steel pans are usually provided with copper bottoms. The reason for this could be that: A) Copper bottom makes the pan more durable. B) Such pans appear colourful. C) Copper is a better conductor of heat than the stainless steel. D) Copper is easier to clean than the stainless steel. Show Answer Correct Answer: C) Copper is a better conductor of heat than the stainless steel. 11. Unit of measurement of temperature is A) Meter. B) Kilogram. C) Degree celsius. D) Seconds. Show Answer Correct Answer: C) Degree celsius. 12. Conduction is the method of transfer of heat in A) Solids. B) Liquid. C) Gases. D) Vaccum. Show Answer Correct Answer: A) Solids. 13. When things are cold molecules are moving ..... A) Fast. B) Slow. C) They are not moving. D) They are moving by not fast or slow. Show Answer Correct Answer: B) Slow. 14. In sea breeze A) Cold air moves from sea towards land during day time. B) Hot air moves from sea towards land during day time. C) Cold air moves from land towards sea during day time. D) None of the above. Show Answer Correct Answer: A) Cold air moves from sea towards land during day time. 15. What are the units for specific heat capacity? A) J kg / $^\circ$C. B) J / kg / $^\circ$C. C) J / $^\circ$ C. D) J / kg. E) Kg $^\circ$C / J. Show Answer Correct Answer: B) J / kg / $^\circ$C. 16. John has a fever. His mother puts a cold towel on his forehead. Which of the following is correct? A) Heat flows from John's forehead to the towel. B) Heat flows from the towel to John's forehead. C) Temperature flows from John's forehead to the towel. D) Temperature flows from the towel to John's forehead. Show Answer Correct Answer: A) Heat flows from John's forehead to the towel. 17. 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 in a pot of cold water. C) Ice cube in a pot of warm water. D) Ice cube on a plate at room temperature. Show Answer Correct Answer: A) Ice cube in a pot of boiling water. 18. 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. 19. 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. 20. 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. 21. 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. 22. 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. 23. 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) Radiation from the sun. B) Convection from the sun. C) Conduction from the sun. D) Transpiration from the sun. Show Answer Correct Answer: A) Radiation from the sun. 24. 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. 25. 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. ← 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