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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 722 · 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) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  2. 2.Which of these needs a waterproof material? (a) a skipping rope (b) a yoga mat (c) a car windscreen (d) an umbrella cover
  3. 3.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  4. 4.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  6. 6.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🔍 Which is the odd one out? (a) brass (b) rubber (c) copper (d) steel
  8. 8.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.True or false: an oven glove needs a flexible material. (a) True (b) False
  10. 10.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) iron (d) aluminium
  11. 11.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🔍 Which is the odd one out? (a) dry wood (b) copper (c) iron (d) brass
  14. 14.True or false: the core of a wire needs a transparent material. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) glass (b) dry wood (c) clay pottery (d) steel
  16. 16.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.True or false: an oven glove needs a heat insulator. (a) True (b) False
  18. 18.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  19. 19.Which of these needs a transparent material? (a) a roof sheet (b) a plug pin (c) a spectacle lens (d) a car seat belt
  20. 20.Which of these needs a waterproof material? (a) a hair band (b) the core of a wire (c) a plug pin (d) a water tank
  21. 21.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  22. 22.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.True or false: a hair band needs a flexible material. (a) False (b) True
  24. 24.🧱 Which property matters most for an umbrella cover? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  25. 25.Which of these needs a flexible material? (a) the core of a wire (b) a hair band (c) a water tank (d) a cooking pot handle
  26. 26.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  27. 27.True or false: a boat hull needs a waterproof material. (a) True (b) False
  28. 28.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  31. 31.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs a flexible material? (a) an umbrella cover (b) a car windscreen (c) a spectacle lens (d) a skipping rope
  35. 35.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  36. 36.True or false: a skipping rope needs a transparent material. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) brass (b) copper (c) aluminium (d) cotton cloth
  38. 38.True or false: a water tank needs a heat insulator. (a) True (b) False
  39. 39.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  40. 40.True or false: a window pane needs a transparent material. (a) True (b) False

Answer key

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

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