This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 3 Heat – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 3 Heat Quiz 9 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The type of heat transfer that happens through direct contact of molecules or particles with each other is ..... A) Convection. B) Conduction. C) Radiation. D) Insulation. Show Answer Correct Answer: B) Conduction. 2. Objects that allow energy to pass through them easily are ..... A) Insulators. B) Conduction. C) Conductors. D) None of the above. Show Answer Correct Answer: C) Conductors. 3. Land and Sea breezes occur due to convection currents. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 4. Particles move fastest in A) Solid. B) Liquid. C) Gas. D) None of the above. Show Answer Correct Answer: C) Gas. 5. Compared to the Pacific Ocean, a cup of hot tea has A) More thermal energy and a higher temperature. B) Less thermal energy and a higher temperature. C) More thermal energy and a lower temperature. D) None of the above. Show Answer Correct Answer: B) Less thermal energy and a higher temperature. 6. ..... is the mode of heat transfer in liquids and gases A) Conduction. B) Radiation. C) Convection. D) None of the above. Show Answer Correct Answer: C) Convection. 7. If you rub your hands together they get warmer because of A) Gravity. B) Magnetism. C) Friction. D) The weather. Show Answer Correct Answer: C) Friction. 8. Shay plugs in her computer. When she places it on her lap, she notices it is hot. What is the source of heat? A) Sun. B) Friction. C) Mixing objects together. D) Electricity. Show Answer Correct Answer: D) Electricity. 9. When things are hot 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: A) Fast. 10. HEAT IS FEELING OF A) HOTNESS. B) COLDNESS. C) BOTH 1 AND 2. D) NONE OF THESE. Show Answer Correct Answer: C) BOTH 1 AND 2. 11. Warming your feet in front of a fire. A) Conduction. B) Convection. C) Radiation. D) Vacation. Show Answer Correct Answer: C) Radiation. 12. What form of heat transfer is being used to transfer energy to the solar panel? A) Radiation. B) Conduction. C) Convection. D) Temperature. Show Answer Correct Answer: A) Radiation. 13. Hot pizza hurts the tongue. A) Convection. B) Radiation. C) Conduction. D) None of the above. Show Answer Correct Answer: C) Conduction. 14. A 25.36 g sample of an unknown metal is heated to 100.00 $^{o}$C and dropped into 26.26 g of water at a temperature of 22.31 $^{o}$C. Calculate the experimental C value for this metal sample if the final temperature of the system is 28.03 $^{o}$C. A) 2.90 J/g*$^{o}$C. B) .189 J/g*$^{o}$C. C) .345 J/g*$^{o}$C. D) .587 J/g*$^{o}$C. Show Answer Correct Answer: C) .345 J/g*$^{o}$C. 15. The transfer of energy by electromagnetic waves is called A) Conduction. B) Radiation. C) Convection. D) Insulation. Show Answer Correct Answer: B) Radiation. 16. Convert 30$^\circ$C to Fahrenheit A) 860$^\circ$F. B) 86$^\circ$F. C) 63.8$^\circ$F. D) 56$^\circ$F. Show Answer Correct Answer: B) 86$^\circ$F. 17. What unit do you use to measure specific heat capacity? A) J/kg $^\circ$C. B) Kg. C) $^\circ$C. D) J. Show Answer Correct Answer: A) J/kg $^\circ$C. 18. Which best explains why a pan placed on a hot stove top will begin to warm? A) Conduction. B) Convection. C) Radiation. D) Insulation. Show Answer Correct Answer: A) Conduction. 19. Two liquids combing to make the temperature rise is an example of which type of heat source? A) Electricity. B) Friction. C) Sunlight. D) Mixing things together-chemical change. Show Answer Correct Answer: D) Mixing things together-chemical change. 20. Mrs. Lisska was blow drying her hair in the morning. Which question can you ask to determine the source of heat? A) Does it get hotter the faster the air blows?. B) Does it get hotter when it's plugged in?. C) Where is it located?. D) Is a flame produced?. Show Answer Correct Answer: B) Does it get hotter when it's plugged in?. 21. Which of the following BEST describes what a thermometer's temperature reading measures? A) Amount of heat energy contained in a substance. B) Average kinetic energy of a substance's molecules. C) Rate of flow of heat from a substance to the environment. D) Average potential and kinetic energy of a substance's molecules. Show Answer Correct Answer: B) Average kinetic energy of a substance's molecules. 22. Jessie knows that conduction is the transfer of heat energy. Which transfer of heat energy is made through conduction? A) Hand heats a snowball. B) Radiator warms a home. C) Boiling water heats pasta. D) None of the above. Show Answer Correct Answer: A) Hand heats a snowball. 23. Which one of the following is an insulator? A) Graphite. B) Air. C) Copper. D) Lead. Show Answer Correct Answer: B) Air. 24. When a gas is compressed undr adiabatic condition its temeperature decreases A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 25. Conductors are materials that ..... A) Allow heat to pass through. B) Stop heat from passing through. C) Allow cold to pass through. D) Stop cold from passing through. Show Answer Correct Answer: A) Allow heat to pass through. ← 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 10Class 7 Science Chapter 3 Heat Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books