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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 375 · 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 material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  2. 2.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  3. 3.True or false: a plug pin needs a heat insulator. (a) False (b) True
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  6. 6.🔍 Which is the odd one out? (a) copper (b) graphite (c) aluminium (d) cotton cloth
  7. 7.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  8. 8.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  9. 9.Which of these needs a waterproof material? (a) a skipping rope (b) a tea flask lining (c) an umbrella cover (d) a hair band
  10. 10.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  11. 11.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) graphite (d) glass
  12. 12.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) clay pottery (d) cotton cloth
  13. 13.🔍 Which is the odd one out? (a) steel (b) glass (c) clay pottery (d) plastic
  14. 14.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  15. 15.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) graphite (d) brass
  17. 17.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  19. 19.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  20. 20.True or false: a plug pin needs a flexible material. (a) True (b) False
  21. 21.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  23. 23.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  24. 24.Which of these needs a flexible material? (a) a water tank (b) a skipping rope (c) a magnifier lens (d) a boat hull
  25. 25.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  26. 26.Which of these needs a heat insulator? (a) an oven glove (b) a car seat belt (c) a switch contact (d) a hair band
  27. 27.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  28. 28.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  29. 29.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  30. 30.🧱 Which property matters most for a hair band? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  31. 31.Which of these needs a transparent material? (a) a yoga mat (b) a hair band (c) a car seat belt (d) a magnifier lens
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  34. 34.Which of these needs a waterproof material? (a) a hair band (b) a raincoat (c) a tea flask lining (d) a car seat belt
  35. 35.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  36. 36.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  37. 37.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  38. 38.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  39. 39.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  40. 40.Which of these needs a flexible material? (a) a roof sheet (b) an umbrella cover (c) a car seat belt (d) a car windscreen

Answer key

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

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