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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 637 · 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.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.Which of these needs a transparent material? (a) a plug pin (b) a roof sheet (c) a boat hull (d) a window pane
  3. 3.Which of these needs an electrical conductor? (a) a car windscreen (b) a water tank (c) a yoga mat (d) a plug pin
  4. 4.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  5. 5.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.Which of these needs a transparent material? (a) a water tank (b) a car seat belt (c) a car windscreen (d) a tea flask lining
  7. 7.True or false: an oven glove needs a transparent material. (a) False (b) True
  8. 8.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  9. 9.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  10. 10.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  11. 11.Which of these needs a heat insulator? (a) a magnifier lens (b) the core of a wire (c) a skipping rope (d) a cooking pot handle
  12. 12.Which of these needs a flexible material? (a) an umbrella cover (b) a skipping rope (c) a spectacle lens (d) a raincoat
  13. 13.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  14. 14.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) dry wood (d) clay pottery
  15. 15.Which of these needs a heat insulator? (a) a roof sheet (b) a tea flask lining (c) a car windscreen (d) a skipping rope
  16. 16.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) steel (d) plastic
  17. 17.True or false: a boat hull needs a transparent material. (a) True (b) False
  18. 18.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  19. 19.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  20. 20.True or false: a yoga mat needs a flexible material. (a) True (b) False
  21. 21.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  22. 22.Which of these needs a flexible material? (a) a spectacle lens (b) a car seat belt (c) a roof sheet (d) a window pane
  23. 23.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) steel (d) graphite
  24. 24.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  25. 25.True or false: a raincoat needs a heat insulator. (a) False (b) True
  26. 26.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  27. 27.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) dry wood (b) brass (c) plastic (d) rubber
  29. 29.🔍 Which is the odd one out? (a) brass (b) aluminium (c) iron (d) rubber
  30. 30.Which of these needs a heat insulator? (a) a hair band (b) a switch contact (c) an oven glove (d) a spectacle lens
  31. 31.True or false: a roof sheet needs a flexible material. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) brass (b) dry wood (c) iron (d) graphite
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  35. 35.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  37. 37.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  39. 39.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) iron (d) glass
  40. 40.True or false: a raincoat needs an electrical conductor. (a) True (b) False

Answer key

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

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