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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 989 · 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 the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  2. 2.🔍 Which is the odd one out? (a) plastic (b) graphite (c) copper (d) aluminium
  3. 3.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  4. 4.🔍 Which is the odd one out? (a) dry wood (b) iron (c) glass (d) rubber
  5. 5.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  6. 6.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  7. 7.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  8. 8.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  9. 9.🔍 Which is the odd one out? (a) graphite (b) iron (c) copper (d) cotton cloth
  10. 10.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  11. 11.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  12. 12.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  13. 13.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs a flexible material? (a) a spectacle lens (b) a skipping rope (c) a window pane (d) a raincoat
  16. 16.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  17. 17.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  18. 18.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  19. 19.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.Which of these needs a heat insulator? (a) a raincoat (b) a window pane (c) a magnifier lens (d) a cooking pot handle
  22. 22.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🔍 Which is the odd one out? (a) copper (b) iron (c) rubber (d) brass
  24. 24.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  25. 25.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  27. 27.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🔍 Which is the odd one out? (a) glass (b) copper (c) brass (d) graphite
  29. 29.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  30. 30.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  31. 31.True or false: an oven glove needs a transparent material. (a) False (b) True
  32. 32.True or false: a water tank needs a transparent material. (a) False (b) True
  33. 33.True or false: a water tank needs an electrical conductor. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) glass (b) brass (c) cotton cloth (d) dry wood
  35. 35.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  36. 36.True or false: a water tank needs a waterproof material. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) cotton cloth (d) rubber
  38. 38.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  39. 39.Which of these needs a waterproof material? (a) a boat hull (b) a tea flask lining (c) a car windscreen (d) the core of a wire
  40. 40.True or false: a hair band needs a heat insulator. (a) True (b) False

Answer key

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

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