This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 3 Heat – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 3 Heat Quiz 14 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This type of heat transfer can be felt without touching the source, i.e. heat from a fire. A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: C) Radiation. 2. One litre of water at 30 $^\circ$C is mixed with one litre of water at 50$^\circ$C. The Temperature of the mixture will be A) 80$^\circ$C. B) 20$^\circ$C. C) More than 50$^\circ$C but less than 80$^\circ$C. D) Between 30$^\circ$C and 50$^\circ$C. Show Answer Correct Answer: D) Between 30$^\circ$C and 50$^\circ$C. 3. To change from a solid to a liquid A) Predict. B) Cool. C) Change. D) Melt. Show Answer Correct Answer: D) Melt. 4. What is the primary method of heat transfer in a vacuum? A) Conduction. B) Convection. C) Radiation. D) Conduction and Convection. Show Answer Correct Answer: C) Radiation. 5. SPECIFIC HEAT CAPACITY MEASURES ..... A) How much heat is in a substance. B) Total energy in a substance. C) The heat required to raise the temperature of one g of a substance by 1$^\circ$C. D) The temperature at which a substance changes state. Show Answer Correct Answer: C) The heat required to raise the temperature of one g of a substance by 1$^\circ$C. 6. Convection currents occur: A) Only in liquids. B) When a dense substance is warmer than a less dense substance. C) In both liquids and gases. D) Weakly in solids. Show Answer Correct Answer: C) In both liquids and gases. 7. A sample of iron receives 50.J of heat energy that raises the temperature of the iron 25.0$^\circ$C. If iron has a specific heat of 0.10 J/g$^\circ$C, what is the mass of the iron sample? A) 25 g. B) 30 g. C) 20 g. D) 50 g. Show Answer Correct Answer: C) 20 g. 8. How does Danny Walker show determination in the book? A) By studying hard for exams. B) By practicing basketball daily, even after being cut from the team. C) By learning to play an instrument. D) By trying to make new friends in a new school. Show Answer Correct Answer: B) By practicing basketball daily, even after being cut from the team. 9. A reliable measure of the hotness of an object is its ..... A) Heat. B) Cold. C) Temperature. D) Heat, cold. Show Answer Correct Answer: C) Temperature. 10. What is the normal temperature of human body? A) 35$^{o}$ C. B) 37$^{o}$ C. C) 42$^{o}$ C. D) 38$^{o}$ C. Show Answer Correct Answer: B) 37$^{o}$ C. 11. THERE ARE TWO OBJECTS TOUCHING TO EACH OTHER.THE OBJECT A HAS TEMPERATURE 70$^{O }$C AND OBJECT B HAS TEMPERATURE 46$^{O}$C.THERE WILL TRANSFER OF HEAT FROM A) A TO B. B) B TO A. C) NO TRANSFER. D) BOTH 1 AND 2. Show Answer Correct Answer: A) A TO B. 12. Why do you want to live in a home with good insulation during the cold winter months? A) The insulation will keep you cool during winter. B) If there is good insulation, the thermal energy will not be able to move easily from inside the warm home to the cool areas outside the building. C) If there is not good insulation, the air inside the home will become too hot. D) A house with good insulation will keep the warm air in the attic. Show Answer Correct Answer: B) If there is good insulation, the thermal energy will not be able to move easily from inside the warm home to the cool areas outside the building. 13. What is temperature measured in? A) Degrees. B) Centimeters (cm). C) Inches (in). D) None of the above. Show Answer Correct Answer: A) Degrees. 14. A student is investigating friction as a source of heat energy using a toy train and train tracks. Which question should the student try to answer with her investigation? A) Do train tracks feel warm on sunny days. B) Do train tracks get warmer right after a train passes?. C) How quickly can a train go around a track?. D) How much heavier is a train than the train tracks?. Show Answer Correct Answer: B) Do train tracks get warmer right after a train passes?. 15. You heat up 2 pans of water; one has 100 mL in it, and the other has 1000 mL. Which one heats up the fastest? A) 100 mL. B) 1000 mL. C) They both heat up at the same speed. D) None of the above. Show Answer Correct Answer: A) 100 mL. 16. The sum of kinetic and potential energy is known as internal energy. The flow of internal energy is called ..... A) Light energy. B) Wind energy. C) Solar energy. D) Heat energy. Show Answer Correct Answer: D) Heat energy. 17. Which of the following is an example of convection? A) A hair dryer is drying up your hair. B) When the AC or heater changes the temperature. C) When a car engine turns hot after being turned on. D) When you are making soup and the water is rising and lowering. Show Answer Correct Answer: D) When you are making soup and the water is rising and lowering. 18. Which scale is used to measure absolute zero temperature? A) Celsius. B) Kelvin. C) Fahrenheit. D) None of the above. Show Answer Correct Answer: B) Kelvin. 19. Where do we get the greatest amount of heat energy from? A) A plug. B) Running. C) Fire. D) The Sun. Show Answer Correct Answer: D) The Sun. 20. Can convection currents occur in a solid? A) No. just in a liquid and gas. B) Yes.In a solid, liquid, and gas. C) All the above. D) None of the above. Show Answer Correct Answer: A) No. just in a liquid and gas. 21. The transfer of heat which doesnot required any medium is called A) Conduction. B) Convection. C) Radiation. D) Vapourisation. Show Answer Correct Answer: C) Radiation. 22. Convert the given temperature to celsius.150$^\circ$F.Do the calculations in your rough notes there is time ( 60 sec ) provided for this question. A) 65.5$^\circ$C. B) 66463657898$^\circ$C. C) 65.8$^\circ$C. D) 70$^\circ$C. Show Answer Correct Answer: A) 65.5$^\circ$C. 23. Which character in 'Heat' is known for their exceptional pitching skills? A) Michael Arroyo. B) Manny Cabrera. C) Ellie Garcia. D) Carlos Arroyo. Show Answer Correct Answer: A) Michael Arroyo. 24. An ideal gas undergoing isothermal expansion means A) Its heat content remains constant. B) Its temperature and heat content remains constant. C) Its temperature and pressure remains constant. D) Its temperature remains constant. Show Answer Correct Answer: D) Its temperature remains constant. 25. Latent heat does not raise (or increase) the ..... A) Force of attraction. B) Space. C) Temperature. D) Motion of the particle. Show Answer Correct Answer: C) Temperature. ← 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