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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 610 · 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 plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  3. 3.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) brass (d) dry wood
  5. 5.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.Which of these needs an electrical conductor? (a) a spectacle lens (b) a tea flask lining (c) a switch contact (d) a car windscreen
  8. 8.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) copper (d) glass
  9. 9.True or false: a car windscreen needs a transparent material. (a) False (b) True
  10. 10.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  13. 13.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  16. 16.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  17. 17.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  18. 18.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  19. 19.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs a waterproof material? (a) an umbrella cover (b) a car windscreen (c) a hair band (d) a skipping rope
  24. 24.Which of these needs a heat insulator? (a) a skipping rope (b) a boat hull (c) a cooking pot handle (d) a roof sheet
  25. 25.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  26. 26.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  27. 27.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) clay pottery (d) plastic
  28. 28.True or false: a roof sheet needs a transparent material. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) graphite (b) iron (c) rubber (d) steel
  30. 30.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  31. 31.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  32. 32.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  33. 33.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  34. 34.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  35. 35.Which of these needs an electrical conductor? (a) a hair band (b) a plug pin (c) a cooking pot handle (d) a magnifier lens
  36. 36.Which of these needs a transparent material? (a) a plug pin (b) a window pane (c) a cooking pot handle (d) an oven glove
  37. 37.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) dry wood (d) graphite
  38. 38.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) dry wood (d) brass
  39. 39.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  40. 40.Which of these needs a flexible material? (a) the core of a wire (b) a skipping rope (c) a cooking pot handle (d) a raincoat

Answer key

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

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