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Engineering Worksheet: Materials

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

Answer key

  1. copper
  2. a conductor
  3. rubber
  4. cotton cloth
  5. plastic-coated cloth
  6. copper
  7. True
  8. True
  9. graphite
  10. transparent
  11. an insulator
  12. a hair band
  13. iron
  14. False
  15. steel
  16. waterproof
  17. False
  18. True
  19. clay pottery
  20. aluminium
  21. brass
  22. transparent
  23. heat insulator
  24. a water tank
  25. a boat hull
  26. waterproof
  27. a skipping rope
  28. False
  29. dry wood
  30. a conductor
  31. an umbrella cover
  32. glass
  33. steel
  34. glass
  35. flexible
  36. waterproof
  37. True
  38. electrical conductor
  39. an insulator
  40. a conductor

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