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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 478 · 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 is the odd one out? (a) iron (b) plastic (c) dry wood (d) clay pottery
  2. 2.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  3. 3.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  4. 4.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  5. 5.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) aluminium (d) glass
  7. 7.True or false: an oven glove needs a heat insulator. (a) True (b) False
  8. 8.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a waterproof material? (a) a hair band (b) a yoga mat (c) a boat hull (d) a magnifier lens
  11. 11.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  12. 12.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  13. 13.🧱 Which property matters most for the core of a wire? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  14. 14.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  15. 15.True or false: a raincoat needs a waterproof material. (a) False (b) True
  16. 16.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  18. 18.True or false: a skipping rope needs a flexible material. (a) True (b) False
  19. 19.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🔍 Which is the odd one out? (a) brass (b) iron (c) aluminium (d) cotton cloth
  23. 23.Which of these needs a flexible material? (a) a window pane (b) a hair band (c) the core of a wire (d) a magnifier lens
  24. 24.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  25. 25.🔍 Which is the odd one out? (a) copper (b) brass (c) steel (d) glass
  26. 26.True or false: a yoga mat needs a flexible material. (a) False (b) True
  27. 27.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  28. 28.Which of these needs a waterproof material? (a) a switch contact (b) a hair band (c) a cooking pot handle (d) an umbrella cover
  29. 29.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  30. 30.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  31. 31.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a boat hull needs a waterproof material. (a) False (b) True
  34. 34.True or false: a window pane needs a flexible material. (a) True (b) False
  35. 35.Which of these needs a waterproof material? (a) a skipping rope (b) a hair band (c) a water tank (d) a window pane
  36. 36.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  37. 37.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.True or false: an oven glove needs a waterproof material. (a) True (b) False
  39. 39.Which of these needs a transparent material? (a) a magnifier lens (b) an oven glove (c) a water tank (d) a boat hull
  40. 40.True or false: a magnifier lens needs a transparent material. (a) False (b) True

Answer key

  1. iron
  2. waterproof
  3. steel
  4. glass
  5. an insulator
  6. aluminium
  7. True
  8. an insulator
  9. a conductor
  10. a boat hull
  11. transparent
  12. transparent
  13. electrical conductor
  14. transparent
  15. True
  16. a conductor
  17. copper
  18. True
  19. flexible
  20. an insulator
  21. a conductor
  22. cotton cloth
  23. a hair band
  24. flexible
  25. glass
  26. True
  27. heat insulator
  28. an umbrella cover
  29. wood or plastic
  30. waterproof
  31. plastic-coated cloth
  32. a conductor
  33. True
  34. False
  35. a water tank
  36. flexible
  37. an insulator
  38. False
  39. a magnifier lens
  40. True

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