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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 318 · 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.True or false: the core of a wire needs a transparent material. (a) True (b) False
  2. 2.🔍 Which is the odd one out? (a) aluminium (b) iron (c) copper (d) rubber
  3. 3.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  6. 6.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  8. 8.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  9. 9.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  10. 10.Which of these needs a transparent material? (a) a window pane (b) an oven glove (c) a switch contact (d) a skipping rope
  11. 11.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.Which of these needs a flexible material? (a) a spectacle lens (b) a raincoat (c) a hair band (d) a switch contact
  14. 14.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.True or false: a hair band needs a waterproof material. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) rubber (b) steel (c) dry wood (d) plastic
  17. 17.Which of these needs a heat insulator? (a) the core of a wire (b) a yoga mat (c) a boat hull (d) an oven glove
  18. 18.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  19. 19.True or false: a boat hull needs a heat insulator. (a) True (b) False
  20. 20.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) brass (b) glass (c) iron (d) graphite
  23. 23.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  24. 24.🔍 Which is the odd one out? (a) copper (b) aluminium (c) cotton cloth (d) steel
  25. 25.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  26. 26.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  28. 28.True or false: a yoga mat needs a transparent material. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) steel (d) brass
  30. 30.Which of these needs a flexible material? (a) an umbrella cover (b) a spectacle lens (c) a boat hull (d) a skipping rope
  31. 31.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  32. 32.Which of these needs an electrical conductor? (a) a water tank (b) a switch contact (c) a skipping rope (d) a boat hull
  33. 33.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) dry wood (d) glass
  34. 34.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  36. 36.True or false: a hair band needs a heat insulator. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) glass (d) rubber
  38. 38.True or false: a plug pin needs a transparent material. (a) True (b) False
  39. 39.Which of these needs a heat insulator? (a) a skipping rope (b) a car windscreen (c) a tea flask lining (d) a water tank
  40. 40.True or false: a spectacle lens needs a transparent material. (a) True (b) False

Answer key

  1. False
  2. rubber
  3. an insulator
  4. a conductor
  5. False
  6. an insulator
  7. plastic-coated cloth
  8. transparent
  9. waterproof
  10. a window pane
  11. glass
  12. a conductor
  13. a hair band
  14. a conductor
  15. False
  16. steel
  17. an oven glove
  18. False
  19. False
  20. an insulator
  21. True
  22. glass
  23. transparent
  24. cotton cloth
  25. waterproof
  26. an insulator
  27. waterproof
  28. False
  29. dry wood
  30. a skipping rope
  31. copper
  32. a switch contact
  33. copper
  34. a conductor
  35. False
  36. False
  37. iron
  38. False
  39. a tea flask lining
  40. True

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