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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 850 · 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 an oven glove? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  2. 2.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  3. 3.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  5. 5.Which of these needs a heat insulator? (a) a boat hull (b) a tea flask lining (c) the core of a wire (d) a spectacle lens
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  8. 8.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  9. 9.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  10. 10.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) plastic (d) copper
  11. 11.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  13. 13.🔍 Which is the odd one out? (a) iron (b) brass (c) copper (d) glass
  14. 14.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  15. 15.Which of these needs a heat insulator? (a) a cooking pot handle (b) a plug pin (c) a roof sheet (d) the core of a wire
  16. 16.True or false: a car windscreen needs a flexible material. (a) True (b) False
  17. 17.Which of these needs a waterproof material? (a) a hair band (b) a roof sheet (c) a car seat belt (d) a spectacle lens
  18. 18.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) cotton cloth (d) rubber
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a waterproof material? (a) a switch contact (b) a window pane (c) a skipping rope (d) an umbrella cover
  22. 22.🔍 Which is the odd one out? (a) rubber (b) iron (c) graphite (d) copper
  23. 23.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  24. 24.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  25. 25.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  26. 26.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  27. 27.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  28. 28.Which of these needs an electrical conductor? (a) a switch contact (b) a raincoat (c) an umbrella cover (d) a skipping rope
  29. 29.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  32. 32.🧱 Which property matters most for a yoga mat? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  33. 33.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  34. 34.True or false: a skipping rope needs a flexible material. (a) False (b) True
  35. 35.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  36. 36.🧱 Which property matters most for a raincoat? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  37. 37.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  38. 38.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  39. 39.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  40. 40.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

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

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