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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 342 · 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 property matters most for a water tank? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  2. 2.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) copper (d) aluminium
  4. 4.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  5. 5.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) cotton cloth (d) dry wood
  6. 6.Which of these needs a flexible material? (a) a switch contact (b) a tea flask lining (c) a car windscreen (d) a hair band
  7. 7.Which of these needs a heat insulator? (a) a boat hull (b) an oven glove (c) a yoga mat (d) a skipping rope
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  10. 10.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  11. 11.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  12. 12.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  13. 13.True or false: a hair band needs a heat insulator. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) copper (b) aluminium (c) glass (d) brass
  15. 15.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  16. 16.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  17. 17.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) dry wood (d) cotton cloth
  18. 18.True or false: a skipping rope needs a flexible material. (a) False (b) True
  19. 19.True or false: a skipping rope needs a transparent material. (a) True (b) False
  20. 20.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  21. 21.True or false: a plug pin needs a flexible material. (a) True (b) False
  22. 22.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  23. 23.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  24. 24.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  25. 25.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  26. 26.True or false: a yoga mat needs a flexible material. (a) True (b) False
  27. 27.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.Which of these needs a waterproof material? (a) a switch contact (b) a water tank (c) a window pane (d) a spectacle lens
  29. 29.True or false: a window pane needs a transparent material. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) steel (d) cotton cloth
  31. 31.🔍 Which is the odd one out? (a) iron (b) graphite (c) dry wood (d) copper
  32. 32.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  33. 33.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  35. 35.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  36. 36.Which of these needs a waterproof material? (a) a cooking pot handle (b) a raincoat (c) a skipping rope (d) a plug pin
  37. 37.True or false: a car seat belt needs a flexible material. (a) True (b) False
  38. 38.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  39. 39.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) dry wood (d) iron
  40. 40.Which of these needs a transparent material? (a) an oven glove (b) a tea flask lining (c) a boat hull (d) a spectacle lens

Answer key

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

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