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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 787 · 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.True or false: a window pane needs an electrical conductor. (a) True (b) False
  2. 2.🔍 Which is the odd one out? (a) steel (b) graphite (c) cotton cloth (d) copper
  3. 3.True or false: a hair band needs a waterproof material. (a) True (b) False
  4. 4.Which of these needs a transparent material? (a) a cooking pot handle (b) a window pane (c) a boat hull (d) a water tank
  5. 5.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  7. 7.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  8. 8.🧱 Which property matters most for a water tank? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  9. 9.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  10. 10.Which of these needs a heat insulator? (a) an oven glove (b) a car windscreen (c) a switch contact (d) a yoga mat
  11. 11.Which of these needs a waterproof material? (a) a skipping rope (b) a window pane (c) a water tank (d) a magnifier lens
  12. 12.Which of these needs a waterproof material? (a) a cooking pot handle (b) a plug pin (c) a magnifier lens (d) a roof sheet
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  15. 15.True or false: a hair band needs an electrical conductor. (a) False (b) True
  16. 16.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  17. 17.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  18. 18.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  19. 19.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  20. 20.Which of these needs a waterproof material? (a) a window pane (b) a switch contact (c) a yoga mat (d) a raincoat
  21. 21.Which of these needs a flexible material? (a) a tea flask lining (b) a car seat belt (c) a switch contact (d) a cooking pot handle
  22. 22.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  23. 23.🔍 Which is the odd one out? (a) graphite (b) glass (c) brass (d) aluminium
  24. 24.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  25. 25.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  26. 26.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  27. 27.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  28. 28.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  30. 30.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  31. 31.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  32. 32.Which of these needs a flexible material? (a) the core of a wire (b) a hair band (c) a roof sheet (d) a water tank
  33. 33.Which of these needs an electrical conductor? (a) a yoga mat (b) a raincoat (c) the core of a wire (d) a spectacle lens
  34. 34.🔍 Which is the odd one out? (a) rubber (b) plastic (c) dry wood (d) brass
  35. 35.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  36. 36.Which of these needs a transparent material? (a) a yoga mat (b) a tea flask lining (c) a boat hull (d) a magnifier lens
  37. 37.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  38. 38.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  40. 40.Which of these needs a heat insulator? (a) a water tank (b) a roof sheet (c) a tea flask lining (d) a window pane

Answer key

  1. False
  2. cotton cloth
  3. False
  4. a window pane
  5. an insulator
  6. heat insulator
  7. wood or plastic
  8. waterproof
  9. False
  10. an oven glove
  11. a water tank
  12. a roof sheet
  13. an insulator
  14. waterproof
  15. False
  16. plastic-coated cloth
  17. waterproof
  18. transparent
  19. electrical conductor
  20. a raincoat
  21. a car seat belt
  22. flexible
  23. glass
  24. flexible
  25. steel
  26. copper
  27. glass
  28. a conductor
  29. False
  30. heat insulator
  31. electrical conductor
  32. a hair band
  33. the core of a wire
  34. brass
  35. True
  36. a magnifier lens
  37. True
  38. a conductor
  39. waterproof
  40. a tea flask lining

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