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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 99 · 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 is the odd one out? (a) clay pottery (b) copper (c) graphite (d) aluminium
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  4. 4.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  6. 6.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  7. 7.🧱 Which property matters most for a raincoat? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  8. 8.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  9. 9.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  10. 10.Which of these needs an electrical conductor? (a) a roof sheet (b) a cooking pot handle (c) a switch contact (d) a boat hull
  11. 11.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  12. 12.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  13. 13.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a switch contact? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  15. 15.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  16. 16.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  17. 17.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  18. 18.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) graphite (d) aluminium
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a waterproof material? (a) a window pane (b) a yoga mat (c) a raincoat (d) a car windscreen
  22. 22.Which of these needs a waterproof material? (a) a water tank (b) a window pane (c) a car windscreen (d) a hair band
  23. 23.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  24. 24.Which of these needs a flexible material? (a) a car seat belt (b) a raincoat (c) a window pane (d) a spectacle lens
  25. 25.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  26. 26.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) glass (c) aluminium (d) rubber
  28. 28.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  29. 29.Which of these needs a heat insulator? (a) a window pane (b) a switch contact (c) a raincoat (d) a cooking pot handle
  30. 30.Which of these needs a waterproof material? (a) a magnifier lens (b) a plug pin (c) a boat hull (d) a yoga mat
  31. 31.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  32. 32.True or false: an oven glove needs a flexible material. (a) False (b) True
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.Which of these needs a flexible material? (a) a skipping rope (b) a switch contact (c) a boat hull (d) a spectacle lens
  35. 35.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) copper (d) cotton cloth
  36. 36.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  38. 38.Which of these needs an electrical conductor? (a) an umbrella cover (b) a plug pin (c) a window pane (d) a cooking pot handle
  39. 39.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  40. 40.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. clay pottery
  2. a conductor
  3. True
  4. a conductor
  5. flexible
  6. True
  7. waterproof
  8. plastic-coated cloth
  9. heat insulator
  10. a switch contact
  11. heat insulator
  12. steel
  13. an insulator
  14. electrical conductor
  15. wood or plastic
  16. electrical conductor
  17. copper
  18. cotton cloth
  19. a conductor
  20. a conductor
  21. a raincoat
  22. a water tank
  23. transparent
  24. a car seat belt
  25. waterproof
  26. flexible
  27. aluminium
  28. False
  29. a cooking pot handle
  30. a boat hull
  31. False
  32. False
  33. an insulator
  34. a skipping rope
  35. copper
  36. a conductor
  37. transparent
  38. a plug pin
  39. True
  40. a conductor

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