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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 267 · 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 aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  3. 3.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  4. 4.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  5. 5.🧱 Which property matters most for a magnifier lens? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  6. 6.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  7. 7.Which of these needs a flexible material? (a) the core of a wire (b) a plug pin (c) a hair band (d) a spectacle lens
  8. 8.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  9. 9.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  13. 13.Which of these needs a flexible material? (a) a window pane (b) a cooking pot handle (c) the core of a wire (d) a yoga mat
  14. 14.🔍 Which is the odd one out? (a) copper (b) dry wood (c) steel (d) brass
  15. 15.Which of these needs a heat insulator? (a) an oven glove (b) a hair band (c) a raincoat (d) a roof sheet
  16. 16.🔍 Which is the odd one out? (a) graphite (b) glass (c) copper (d) steel
  17. 17.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  18. 18.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  19. 19.True or false: a boat hull needs a heat insulator. (a) True (b) False
  20. 20.Which of these needs a transparent material? (a) a spectacle lens (b) a yoga mat (c) a water tank (d) a hair band
  21. 21.Which of these needs a flexible material? (a) a window pane (b) a skipping rope (c) a plug pin (d) a roof sheet
  22. 22.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) plastic (b) iron (c) aluminium (d) steel
  24. 24.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  25. 25.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  26. 26.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) graphite (d) rubber
  27. 27.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  29. 29.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🔍 Which is the odd one out? (a) iron (b) rubber (c) graphite (d) brass
  31. 31.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) glass (d) steel
  32. 32.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  33. 33.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  34. 34.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  35. 35.Which of these needs a flexible material? (a) a window pane (b) an umbrella cover (c) a raincoat (d) a car seat belt
  36. 36.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  37. 37.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  38. 38.Which of these needs a waterproof material? (a) a magnifier lens (b) the core of a wire (c) a raincoat (d) a window pane
  39. 39.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  40. 40.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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