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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 507 · 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) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) steel (c) copper (d) plastic
  4. 4.Which of these needs a flexible material? (a) a skipping rope (b) a plug pin (c) a window pane (d) a magnifier lens
  5. 5.True or false: a boat hull needs a heat insulator. (a) True (b) False
  6. 6.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  7. 7.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  8. 8.🔍 Which is the odd one out? (a) graphite (b) glass (c) rubber (d) clay pottery
  9. 9.Which of these needs a transparent material? (a) a hair band (b) a spectacle lens (c) the core of a wire (d) a switch contact
  10. 10.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  11. 11.Which of these needs a heat insulator? (a) an oven glove (b) a car windscreen (c) a magnifier lens (d) a switch contact
  12. 12.Which of these needs a transparent material? (a) the core of a wire (b) a hair band (c) a tea flask lining (d) a car windscreen
  13. 13.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  14. 14.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) iron (c) copper (d) clay pottery
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.Which of these needs a waterproof material? (a) a cooking pot handle (b) a roof sheet (c) a car seat belt (d) a tea flask lining
  18. 18.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  19. 19.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.True or false: an oven glove needs a heat insulator. (a) True (b) False
  22. 22.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  23. 23.Which of these needs a heat insulator? (a) a boat hull (b) a roof sheet (c) a cooking pot handle (d) a raincoat
  24. 24.🧱 Which property matters most for a car seat belt? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  25. 25.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  26. 26.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) dry wood (d) rubber
  28. 28.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  29. 29.True or false: a car seat belt needs a flexible material. (a) False (b) True
  30. 30.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  31. 31.🔍 Which is the odd one out? (a) dry wood (b) glass (c) aluminium (d) cotton cloth
  32. 32.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  33. 33.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  34. 34.True or false: a plug pin needs a flexible material. (a) False (b) True
  35. 35.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🔍 Which is the odd one out? (a) graphite (b) rubber (c) brass (d) iron
  39. 39.True or false: a car seat belt needs a transparent material. (a) True (b) False
  40. 40.True or false: an oven glove needs an electrical conductor. (a) True (b) False

Answer key

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

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