This quiz works best with JavaScript enabled. Home > Cbse > Class 7 > Science > Heat > Class 7 Science Chapter 3 Heat – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 3 Heat Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Heating a home can take up a lot of energy. What could save energy? A) Turning up the air conditioner. B) Turning up the heater. C) Turning down the heater when you are not home. D) Turning on the heater when you are not home. Show Answer Correct Answer: C) Turning down the heater when you are not home. 2. Which best describes how heat is transferred? A) Heat flows in many different directions between substances. B) Heat flows from a cooler substance to a warmer substance. C) Heat flows from a warmer substance to a cooler substance. D) Heat only flows within individual substances. Show Answer Correct Answer: C) Heat flows from a warmer substance to a cooler substance. 3. The amount of energy contained by a body is known as heat A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 4. Rotational motion is? A) Rotating on its own axis. B) Vibrating on its own axis. C) Moving too and fro. D) Dynamic random motion. Show Answer Correct Answer: A) Rotating on its own axis. 5. Jill notices that her skin gets burned when she sits out in the sun. What best explains why this happens? A) The soil is convecting heat into the air. B) The heat from the sun is being conducted to the Earth. C) The heat from the sun is radiating down to Earth's surface. D) None of the above. Show Answer Correct Answer: C) The heat from the sun is radiating down to Earth's surface. 6. What is the symbol for Specific Heat A) M. B) Q. C) T. D) C. Show Answer Correct Answer: D) C. 7. How does Michael's friendship with Manny impact his journey in the story? A) It distracts him from his goals. B) It provides him with emotional support. C) It creates additional challenges. D) It has no significant impact. Show Answer Correct Answer: B) It provides him with emotional support. 8. Why do land breezes occur at night? A) Land cools off slower than water, so the air above water is cooler. B) Water cools off faster than land, so the air above land is warmer. C) Land heats up slower than water, so the air stays cooler during the day. D) Water cools off slower than land, so the air above water is warmer. Show Answer Correct Answer: D) Water cools off slower than land, so the air above water is warmer. 9. What is temperature? A) Something to measure how hot or cold an object is. B) A form of energy. C) A form of heat. D) A measure of how old or cold something is. Show Answer Correct Answer: D) A measure of how old or cold something is. 10. Which color absorbs the most light? A) Light Blue. B) White. C) Black. D) None of the above. Show Answer Correct Answer: C) Black. 11. Si units of specific heat A) K/J.kg. B) Kg/J.K. C) J.kg.K. D) J/kg.K. Show Answer Correct Answer: D) J/kg.K. 12. What is a good conductor of heat? 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: B) A material that transfers heat easily. 13. Lebron James wants to play a pickup game of basketball with his friends. He needs to set his bottle of water down, but does not want it to get very hot. Where should he place his bottle so that it does not heat up very much? A) He should leave it on the black asphalt. B) He should place it in a shaded area. C) He should leave it on a metal bench because metal is a conductor and does not get very hot. D) None of the above. Show Answer Correct Answer: B) He should place it in a shaded area. 14. What is a material that allows heat to transfer easily through it? A) Conductor. B) Thermometer. C) Celsius. D) Insulator. Show Answer Correct Answer: A) Conductor. 15. When testing different material to see which is a better conductor:butter was placed on a metal knife, a plastic knife and a wooden popsicle stick, then a sugar cube was placed on top of the butter of each. The butter melts off the fastest from the better heat conductor. Which one was a better conductor? A) Wooden popsicle stick. B) Plastic knife. C) Metal knife. D) None of the above. Show Answer Correct Answer: C) Metal knife. 16. A hot air balloon rises because of A) Convection. B) Conduction. C) Radiation. D) None of the above. Show Answer Correct Answer: A) Convection. 17. Plastic foam, wood, and rubber are good examples of ..... A) Solar energy. B) Insulators. C) Convection. D) Conductors. Show Answer Correct Answer: B) Insulators. 18. The type of heat transfer that happens through direct contact of molecules or particles with each other is ..... A) Radiation. B) Conduction. C) Insulation. D) Convection. Show Answer Correct Answer: B) Conduction. 19. 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. 20. 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. 21. Particles move fastest in A) Solid. B) Liquid. C) Gas. D) None of the above. Show Answer Correct Answer: C) Gas. 22. 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. 23. ..... 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. 24. If you rub your hands together they get warmer because of A) The weather. B) Gravity. C) Magnetism. D) Friction. Show Answer Correct Answer: D) Friction. 25. 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) Electricity. C) Mixing objects together. D) Friction. Show Answer Correct Answer: B) Electricity. 26. When things are hot molecules are moving ..... A) Slow. B) They are moving by not fast or slow. C) They are not moving. D) Fast. Show Answer Correct Answer: D) Fast. 27. 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. 28. Warming your feet in front of a fire. A) Conduction. B) Vacation. C) Radiation. D) Convection. Show Answer Correct Answer: C) Radiation. 29. What form of heat transfer is being used to transfer energy to the solar panel? A) Conduction. B) Radiation. C) Convection. D) Temperature. Show Answer Correct Answer: B) Radiation. 30. Hot pizza hurts the tongue. A) Convection. B) Radiation. C) Conduction. D) None of the above. Show Answer Correct Answer: C) Conduction. 31. 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) .345 J/g*$^{o}$C. B) .189 J/g*$^{o}$C. C) .587 J/g*$^{o}$C. D) 2.90 J/g*$^{o}$C. Show Answer Correct Answer: A) .345 J/g*$^{o}$C. 32. The transfer of energy by electromagnetic waves is called A) Radiation. B) Convection. C) Conduction. D) Insulation. Show Answer Correct Answer: A) Radiation. 33. Convert 30$^\circ$C to Fahrenheit A) 860$^\circ$F. B) 56$^\circ$F. C) 63.8$^\circ$F. D) 86$^\circ$F. Show Answer Correct Answer: D) 86$^\circ$F. 34. What unit do you use to measure specific heat capacity? A) $^\circ$C. B) Kg. C) J/kg $^\circ$C. D) J. Show Answer Correct Answer: C) J/kg $^\circ$C. 35. Which best explains why a pan placed on a hot stove top will begin to warm? A) Radiation. B) Convection. C) Insulation. D) Conduction. Show Answer Correct Answer: D) Conduction. 36. Two liquids combing to make the temperature rise is an example of which type of heat source? A) Electricity. B) Sunlight. C) Friction. D) Mixing things together-chemical change. Show Answer Correct Answer: D) Mixing things together-chemical change. 37. Mrs. Lisska was blow drying her hair in the morning. Which question can you ask to determine the source of heat? A) Where is it located?. B) Does it get hotter the faster the air blows?. C) Is a flame produced?. D) Does it get hotter when it's plugged in?. Show Answer Correct Answer: D) Does it get hotter when it's plugged in?. 38. 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. 39. 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. 40. Which one of the following is an insulator? A) Air. B) Lead. C) Graphite. D) Copper. Show Answer Correct Answer: A) Air. 41. 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. 42. 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. 43. When you use a microwave, what is the main way that heat is transferred? A) Convection. B) Insulation. C) Conduction. D) Radiation. Show Answer Correct Answer: D) Radiation. 44. B) The rate of evaporation of a liquid increases when A) Air is blown above the surface of liquid. B) Temperature of liquid falls. C) Humidity increases. D) None of the above. Show Answer Correct Answer: A) Air is blown above the surface of liquid. 45. Steam makes the cover of cooking pan rise. A) Convection. B) Conduction. C) Radiation. D) None of the above. Show Answer Correct Answer: A) Convection. 46. What role does Ellie play in Michael's journey in "Heat" ? A) She is a rival player. B) She is a supportive friend. C) She is indifferent to his struggles. D) She is a mentor figure. Show Answer Correct Answer: B) She is a supportive friend. 47. Do land breezes typically happen during the day or night? A) Day. B) Night. C) All the above. D) None of the above. Show Answer Correct Answer: B) Night. 48. List the following particles in size order, from biggest to smallest? A) Atoms, molecules, electrons. B) Electrons, atoms, molecules. C) Molecules, electrons, atoms. D) Molecules, atoms, electrons. Show Answer Correct Answer: D) Molecules, atoms, electrons. 49. Clothes of ..... colours absorb heat better than clothes of light colours. A) Dark. B) Orange. C) Brown. D) Light. Show Answer Correct Answer: A) Dark. 50. A toaster toasting a bread is an example of? A) Convection. B) Condensation. C) Conduction. D) Radiation. Show Answer Correct Answer: D) Radiation. 51. Why does mercury in the thermometer rises when its bulb comes in contact with hot object. A) Mercury is a conductor of heat. B) Temperature increase causes expansion. C) Temperature increase causes contraction. D) Mercury is liquid at room temperature. Show Answer Correct Answer: B) Temperature increase causes expansion. 52. A clinical thermometer read temperature from ..... A) 35$^\circ$C to 42$^\circ$C. B) 10$^\circ$C to 110$^\circ$C. C) 42$^\circ$C to 35$^\circ$C. D) None of the above. Show Answer Correct Answer: A) 35$^\circ$C to 42$^\circ$C. 53. Heated AIR moves from baseboard heaters to the rest of a room in a process called A) Radiation. B) Conduction. C) Convection. D) Insulation. Show Answer Correct Answer: C) Convection. 54. Thermal energy moves from an object with a A) Lower temperature to an object with a higher temperature. B) Bad smell to an object with a good smell. C) Higher temperature to objects with a lower temperature. D) Lower mass to an object with a higher mass. Show Answer Correct Answer: C) Higher temperature to objects with a lower temperature. 55. DEGREE CELSIUS IS ..... UNIT OF TEMPERATURE A) Kelvin. B) C.G.S. C) S.I. D) None of the above. Show Answer Correct Answer: B) C.G.S. 56. What heat transfer happens when you burn your hand by touching a fire? A) Convection. B) I don't know!!!!!!!!!!!. C) Conduction. D) Radiation. Show Answer Correct Answer: C) Conduction. 57. The type of heat transfer that occurs only in fluids, such as water or air. A) Conduction. B) Convection. C) Radiation. D) None of the above. Show Answer Correct Answer: B) Convection. 58. The two temperature scales shown on clinical thermometer are A) Kelvin scale and Celsius scale. B) Celsius scale and Fahrenheit scale. C) Kelvin scale and Fahrenheit scale. D) Only Celsius scale. Show Answer Correct Answer: B) Celsius scale and Fahrenheit scale. 59. The heat absorbed by melting a solid is known as A) Latent heat of liquid. B) Latent heat of fusion. C) Latent heat of solid. D) Latent heat of vaporisation. Show Answer Correct Answer: B) Latent heat of fusion. 60. Which of the following is not a source of heat? A) Coal. B) Shirt. C) Wood. D) Microwave. Show Answer Correct Answer: B) Shirt. ← PreviousNext →Related QuizzesScience QuizzesClass 7 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 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books