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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 48 · 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 tea flask lining? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  2. 2.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  3. 3.🔍 Which is the odd one out? (a) steel (b) graphite (c) copper (d) clay pottery
  4. 4.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  5. 5.Which of these needs a flexible material? (a) a boat hull (b) a yoga mat (c) the core of a wire (d) a tea flask lining
  6. 6.🔍 Which is the odd one out? (a) iron (b) glass (c) brass (d) steel
  7. 7.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  8. 8.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  9. 9.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  11. 11.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  12. 12.True or false: a boat hull needs a waterproof material. (a) True (b) False
  13. 13.True or false: a car seat belt needs a flexible material. (a) True (b) False
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs an electrical conductor? (a) a boat hull (b) a switch contact (c) a window pane (d) a yoga mat
  16. 16.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  18. 18.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  19. 19.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  21. 21.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) copper (d) cotton cloth
  22. 22.Which of these needs a waterproof material? (a) a car seat belt (b) a roof sheet (c) a skipping rope (d) a tea flask lining
  23. 23.🔍 Which is the odd one out? (a) iron (b) plastic (c) cotton cloth (d) rubber
  24. 24.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  25. 25.True or false: a plug pin needs a heat insulator. (a) True (b) False
  26. 26.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  27. 27.🧱 Which property matters most for a car seat belt? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  28. 28.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  29. 29.Which of these needs a heat insulator? (a) a boat hull (b) an oven glove (c) a raincoat (d) an umbrella cover
  30. 30.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  31. 31.Which of these needs a transparent material? (a) a water tank (b) a window pane (c) a yoga mat (d) a plug pin
  32. 32.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  33. 33.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  35. 35.True or false: an oven glove needs a heat insulator. (a) False (b) True
  36. 36.True or false: a window pane needs a waterproof material. (a) True (b) False
  37. 37.Which of these needs an electrical conductor? (a) a car windscreen (b) the core of a wire (c) a magnifier lens (d) a hair band
  38. 38.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.True or false: a roof sheet needs an electrical conductor. (a) False (b) True

Answer key

  1. heat insulator
  2. glass
  3. clay pottery
  4. wood or plastic
  5. a yoga mat
  6. glass
  7. transparent
  8. flexible
  9. an insulator
  10. flexible
  11. True
  12. True
  13. True
  14. a conductor
  15. a switch contact
  16. an insulator
  17. False
  18. heat insulator
  19. a conductor
  20. steel
  21. copper
  22. a roof sheet
  23. iron
  24. True
  25. False
  26. electrical conductor
  27. flexible
  28. True
  29. an oven glove
  30. electrical conductor
  31. a window pane
  32. waterproof
  33. a conductor
  34. transparent
  35. True
  36. False
  37. the core of a wire
  38. electrical conductor
  39. an insulator
  40. False

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