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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 559 · 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 roof sheet? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  2. 2.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) iron (d) plastic
  3. 3.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  4. 4.True or false: a window pane needs a flexible material. (a) False (b) True
  5. 5.🔍 Which is the odd one out? (a) graphite (b) brass (c) aluminium (d) cotton cloth
  6. 6.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🔍 Which is the odd one out? (a) aluminium (b) brass (c) graphite (d) rubber
  8. 8.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  9. 9.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) dry wood (d) brass
  12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  15. 15.Which of these needs a transparent material? (a) a roof sheet (b) a water tank (c) the core of a wire (d) a magnifier lens
  16. 16.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  17. 17.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  18. 18.🔍 Which is the odd one out? (a) copper (b) plastic (c) iron (d) steel
  19. 19.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  20. 20.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  21. 21.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  22. 22.Which of these needs a heat insulator? (a) a switch contact (b) a tea flask lining (c) a roof sheet (d) a raincoat
  23. 23.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  24. 24.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a car seat belt (c) a switch contact (d) a boat hull
  25. 25.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) cotton cloth (d) rubber
  26. 26.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  27. 27.Which of these needs a heat insulator? (a) an oven glove (b) a boat hull (c) a plug pin (d) a spectacle lens
  28. 28.Which of these needs a flexible material? (a) a window pane (b) a boat hull (c) a car seat belt (d) a raincoat
  29. 29.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  31. 31.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  32. 32.True or false: a plug pin needs a transparent material. (a) False (b) True
  33. 33.Which of these needs a flexible material? (a) a skipping rope (b) a window pane (c) the core of a wire (d) a car windscreen
  34. 34.Which of these needs a heat insulator? (a) the core of a wire (b) a skipping rope (c) a cooking pot handle (d) a raincoat
  35. 35.True or false: a hair band needs a flexible material. (a) True (b) False
  36. 36.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  37. 37.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  38. 38.True or false: a raincoat needs a waterproof material. (a) True (b) False
  39. 39.True or false: a plug pin needs a waterproof material. (a) True (b) False
  40. 40.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) waterproof (d) transparent

Answer key

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

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