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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 502 · 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.🧱 Which property matters most for a hair band? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  2. 2.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  3. 3.True or false: a raincoat needs a waterproof material. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) dry wood (b) iron (c) steel (d) aluminium
  5. 5.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🔍 Which is the odd one out? (a) graphite (b) iron (c) glass (d) copper
  7. 7.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  8. 8.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  10. 10.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  11. 11.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  12. 12.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.True or false: a hair band needs a waterproof material. (a) True (b) False
  15. 15.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  16. 16.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  17. 17.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  18. 18.🧱 Which property matters most for an oven glove? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  19. 19.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  20. 20.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  21. 21.True or false: a boat hull needs a waterproof material. (a) False (b) True
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) dry wood (d) aluminium
  24. 24.True or false: a switch contact needs a transparent material. (a) False (b) True
  25. 25.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) copper (b) glass (c) plastic (d) clay pottery
  27. 27.Which of these needs a waterproof material? (a) a cooking pot handle (b) a raincoat (c) a skipping rope (d) a car windscreen
  28. 28.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.True or false: a switch contact needs a heat insulator. (a) False (b) True
  30. 30.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  31. 31.Which of these needs an electrical conductor? (a) a spectacle lens (b) a boat hull (c) a window pane (d) a plug pin
  32. 32.Which of these needs an electrical conductor? (a) a car seat belt (b) an oven glove (c) the core of a wire (d) a window pane
  33. 33.🧱 Which property matters most for a switch contact? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  34. 34.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  36. 36.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) graphite (b) copper (c) brass (d) rubber
  38. 38.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🔍 Which is the odd one out? (a) brass (b) plastic (c) steel (d) aluminium
  40. 40.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. flexible
  2. transparent
  3. True
  4. dry wood
  5. an insulator
  6. glass
  7. copper
  8. a conductor
  9. True
  10. plastic-coated cloth
  11. glass
  12. waterproof
  13. an insulator
  14. False
  15. wood or plastic
  16. False
  17. transparent
  18. heat insulator
  19. electrical conductor
  20. transparent
  21. True
  22. a conductor
  23. aluminium
  24. False
  25. False
  26. copper
  27. a raincoat
  28. a conductor
  29. False
  30. electrical conductor
  31. a plug pin
  32. the core of a wire
  33. electrical conductor
  34. a conductor
  35. True
  36. an insulator
  37. rubber
  38. an insulator
  39. plastic
  40. a conductor

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