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Engineering Worksheet: Materials

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

Answer key

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

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