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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 577 · 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 of these needs a flexible material? (a) the core of a wire (b) a window pane (c) a skipping rope (d) a tea flask lining
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.Which of these needs a transparent material? (a) the core of a wire (b) a cooking pot handle (c) a spectacle lens (d) a roof sheet
  4. 4.True or false: a yoga mat needs a flexible material. (a) False (b) True
  5. 5.Which of these needs a transparent material? (a) a plug pin (b) a window pane (c) the core of a wire (d) a water tank
  6. 6.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  7. 7.True or false: a boat hull needs a flexible material. (a) True (b) False
  8. 8.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  9. 9.True or false: a boat hull needs a waterproof material. (a) True (b) False
  10. 10.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  11. 11.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) copper (b) aluminium (c) iron (d) cotton cloth
  15. 15.Which of these needs a waterproof material? (a) a roof sheet (b) a magnifier lens (c) a hair band (d) an oven glove
  16. 16.Which of these needs a transparent material? (a) a roof sheet (b) a raincoat (c) a car windscreen (d) an oven glove
  17. 17.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) plastic (d) copper
  19. 19.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  20. 20.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  21. 21.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) glass (d) cotton cloth
  23. 23.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  24. 24.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  25. 25.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  28. 28.True or false: a raincoat needs a heat insulator. (a) True (b) False
  29. 29.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  31. 31.Which of these needs a waterproof material? (a) a skipping rope (b) a car windscreen (c) a spectacle lens (d) a boat hull
  32. 32.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  33. 33.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  34. 34.True or false: a water tank needs an electrical conductor. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) copper (b) plastic (c) brass (d) iron
  36. 36.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  37. 37.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.Which of these needs a flexible material? (a) an oven glove (b) a hair band (c) a spectacle lens (d) a magnifier lens
  40. 40.Which of these needs a heat insulator? (a) a water tank (b) a switch contact (c) a raincoat (d) a cooking pot handle

Answer key

  1. a skipping rope
  2. a conductor
  3. a spectacle lens
  4. True
  5. a window pane
  6. waterproof
  7. False
  8. waterproof
  9. True
  10. flexible
  11. False
  12. an insulator
  13. True
  14. cotton cloth
  15. a roof sheet
  16. a car windscreen
  17. an insulator
  18. copper
  19. plastic-coated cloth
  20. wood or plastic
  21. False
  22. aluminium
  23. electrical conductor
  24. flexible
  25. a conductor
  26. an insulator
  27. heat insulator
  28. False
  29. a conductor
  30. waterproof
  31. a boat hull
  32. heat insulator
  33. copper
  34. False
  35. plastic
  36. True
  37. glass
  38. a conductor
  39. a hair band
  40. a cooking pot handle

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