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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 659 · 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 plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs a waterproof material? (a) a plug pin (b) a car seat belt (c) a car windscreen (d) a water tank
  3. 3.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  4. 4.🧱 Which property matters most for a car seat belt? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  5. 5.True or false: a hair band needs a waterproof material. (a) False (b) True
  6. 6.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  7. 7.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  9. 9.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  10. 10.Which of these needs a flexible material? (a) a water tank (b) a window pane (c) a raincoat (d) a car seat belt
  11. 11.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  12. 12.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  14. 14.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  15. 15.Which of these needs a waterproof material? (a) a hair band (b) a tea flask lining (c) a cooking pot handle (d) a raincoat
  16. 16.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  17. 17.🔍 Which is the odd one out? (a) iron (b) copper (c) graphite (d) glass
  18. 18.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  19. 19.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  20. 20.🔍 Which is the odd one out? (a) rubber (b) copper (c) dry wood (d) plastic
  21. 21.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) rubber (d) iron
  22. 22.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) steel (d) rubber
  24. 24.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  28. 28.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  29. 29.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  30. 30.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  31. 31.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for a boat hull? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  33. 33.Which of these needs a heat insulator? (a) a spectacle lens (b) a window pane (c) a skipping rope (d) an oven glove
  34. 34.Which of these needs a waterproof material? (a) a switch contact (b) a cooking pot handle (c) an umbrella cover (d) a hair band
  35. 35.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) steel (b) copper (c) iron (d) dry wood
  38. 38.True or false: a boat hull needs a waterproof material. (a) True (b) False
  39. 39.Which of these needs a transparent material? (a) a switch contact (b) a skipping rope (c) a plug pin (d) a car windscreen
  40. 40.True or false: a plug pin needs an electrical conductor. (a) True (b) False

Answer key

  1. an insulator
  2. a water tank
  3. False
  4. flexible
  5. False
  6. copper
  7. a conductor
  8. False
  9. plastic-coated cloth
  10. a car seat belt
  11. wood or plastic
  12. a conductor
  13. steel
  14. True
  15. a raincoat
  16. electrical conductor
  17. glass
  18. True
  19. electrical conductor
  20. copper
  21. iron
  22. an insulator
  23. rubber
  24. a conductor
  25. False
  26. a conductor
  27. waterproof
  28. glass
  29. waterproof
  30. waterproof
  31. an insulator
  32. waterproof
  33. an oven glove
  34. an umbrella cover
  35. False
  36. an insulator
  37. dry wood
  38. True
  39. a car windscreen
  40. True

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