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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 973 · 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 aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  3. 3.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  4. 4.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  5. 5.Which of these needs a waterproof material? (a) a roof sheet (b) an oven glove (c) a yoga mat (d) a spectacle lens
  6. 6.True or false: a boat hull needs a waterproof material. (a) True (b) False
  7. 7.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  8. 8.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  9. 9.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  10. 10.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) graphite (d) dry wood
  11. 11.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  12. 12.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  13. 13.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) aluminium (d) copper
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  17. 17.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  18. 18.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  19. 19.True or false: a window pane needs a flexible material. (a) True (b) False
  20. 20.True or false: a car windscreen needs a transparent material. (a) True (b) False
  21. 21.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  22. 22.True or false: a water tank needs a flexible material. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) copper (b) iron (c) brass (d) glass
  24. 24.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.True or false: a skipping rope needs a transparent material. (a) True (b) False
  26. 26.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  27. 27.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  29. 29.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  30. 30.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  31. 31.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  32. 32.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.Which of these needs a waterproof material? (a) the core of a wire (b) a car windscreen (c) an umbrella cover (d) a skipping rope
  35. 35.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  36. 36.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  37. 37.🔍 Which is the odd one out? (a) brass (b) graphite (c) clay pottery (d) copper
  38. 38.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  39. 39.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  40. 40.True or false: a car seat belt needs a transparent material. (a) True (b) False

Answer key

  1. a conductor
  2. plastic-coated cloth
  3. False
  4. electrical conductor
  5. a roof sheet
  6. True
  7. heat insulator
  8. True
  9. glass
  10. graphite
  11. waterproof
  12. electrical conductor
  13. cotton cloth
  14. a conductor
  15. a conductor
  16. False
  17. copper
  18. transparent
  19. False
  20. True
  21. False
  22. False
  23. glass
  24. an insulator
  25. False
  26. flexible
  27. an insulator
  28. heat insulator
  29. waterproof
  30. electrical conductor
  31. waterproof
  32. a conductor
  33. a conductor
  34. an umbrella cover
  35. transparent
  36. flexible
  37. clay pottery
  38. False
  39. wood or plastic
  40. False

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