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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 47 · 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 a tea flask lining? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  2. 2.🔍 Which is the odd one out? (a) brass (b) graphite (c) iron (d) cotton cloth
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) iron (c) plastic (d) steel
  4. 4.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  5. 5.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  7. 7.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.True or false: a car windscreen needs a transparent material. (a) False (b) True
  9. 9.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  10. 10.True or false: an oven glove needs a transparent material. (a) True (b) False
  11. 11.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  13. 13.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  15. 15.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) steel (d) copper
  16. 16.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  17. 17.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  18. 18.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  21. 21.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  22. 22.Which of these needs an electrical conductor? (a) a plug pin (b) a car windscreen (c) a skipping rope (d) a water tank
  23. 23.True or false: a hair band needs a flexible material. (a) False (b) True
  24. 24.Which of these needs a flexible material? (a) a yoga mat (b) a window pane (c) a tea flask lining (d) a cooking pot handle
  25. 25.Which of these needs a transparent material? (a) a magnifier lens (b) an oven glove (c) a switch contact (d) a boat hull
  26. 26.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) dry wood (d) steel
  27. 27.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  28. 28.Which of these needs a flexible material? (a) a window pane (b) a cooking pot handle (c) a car seat belt (d) a switch contact
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  31. 31.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  34. 34.True or false: a water tank needs a waterproof material. (a) True (b) False
  35. 35.Which of these needs an electrical conductor? (a) a hair band (b) the core of a wire (c) a car seat belt (d) a roof sheet
  36. 36.True or false: a raincoat needs a waterproof material. (a) True (b) False
  37. 37.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  38. 38.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) plastic (b) glass (c) dry wood (d) aluminium
  40. 40.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. heat insulator
  2. cotton cloth
  3. plastic
  4. plastic-coated cloth
  5. a conductor
  6. steel
  7. a conductor
  8. True
  9. True
  10. False
  11. a conductor
  12. True
  13. an insulator
  14. waterproof
  15. clay pottery
  16. flexible
  17. wood or plastic
  18. True
  19. an insulator
  20. transparent
  21. False
  22. a plug pin
  23. True
  24. a yoga mat
  25. a magnifier lens
  26. steel
  27. copper
  28. a car seat belt
  29. a conductor
  30. electrical conductor
  31. an insulator
  32. an insulator
  33. True
  34. True
  35. the core of a wire
  36. True
  37. waterproof
  38. True
  39. aluminium
  40. an insulator

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