← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 134 · 40 questions
TalentJR

Engineer's tip (Match the property to the job): Ask: what must it do — keep water out, bend, let light through, carry current or stay cool? Metals and graphite conduct electricity; rubber, plastic, dry wood, glass, pottery and cloth insulate. Pick the material whose main property fits the job.

NameDateTime takenScore ___ / 40
  1. 1.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.True or false: a window pane needs a transparent material. (a) False (b) True
  5. 5.Which of these needs a heat insulator? (a) a roof sheet (b) a skipping rope (c) an umbrella cover (d) a cooking pot handle
  6. 6.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) aluminium (b) copper (c) cotton cloth (d) steel
  8. 8.True or false: a raincoat needs a flexible material. (a) True (b) False
  9. 9.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) graphite (d) aluminium
  10. 10.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  12. 12.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  13. 13.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  14. 14.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  15. 15.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.Which of these needs a waterproof material? (a) a spectacle lens (b) an oven glove (c) a plug pin (d) a roof sheet
  17. 17.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  18. 18.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  19. 19.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  20. 20.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  21. 21.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  23. 23.Which of these needs a flexible material? (a) a tea flask lining (b) a spectacle lens (c) a cooking pot handle (d) a yoga mat
  24. 24.Which of these needs a waterproof material? (a) a spectacle lens (b) a car windscreen (c) a boat hull (d) a plug pin
  25. 25.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  26. 26.🧱 Which property matters most for a switch contact? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  27. 27.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  29. 29.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  30. 30.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  32. 32.Which of these needs a waterproof material? (a) a car seat belt (b) a yoga mat (c) a switch contact (d) a raincoat
  33. 33.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) aluminium (d) clay pottery
  35. 35.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  36. 36.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  37. 37.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  38. 38.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🔍 Which is the odd one out? (a) aluminium (b) brass (c) plastic (d) iron
  40. 40.🔍 Which is the odd one out? (a) steel (b) graphite (c) copper (d) dry wood

Answer key

  1. a conductor
  2. an insulator
  3. a conductor
  4. True
  5. a cooking pot handle
  6. False
  7. cotton cloth
  8. False
  9. clay pottery
  10. a conductor
  11. waterproof
  12. heat insulator
  13. wood or plastic
  14. False
  15. an insulator
  16. a roof sheet
  17. False
  18. flexible
  19. steel
  20. heat insulator
  21. an insulator
  22. flexible
  23. a yoga mat
  24. a boat hull
  25. waterproof
  26. electrical conductor
  27. a conductor
  28. waterproof
  29. copper
  30. a conductor
  31. glass
  32. a raincoat
  33. a conductor
  34. aluminium
  35. False
  36. waterproof
  37. False
  38. an insulator
  39. plastic
  40. dry wood

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids