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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 923 · 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 iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🔍 Which is the odd one out? (a) iron (b) aluminium (c) copper (d) clay pottery
  3. 3.Which of these needs a heat insulator? (a) a cooking pot handle (b) a roof sheet (c) a boat hull (d) a spectacle lens
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs a waterproof material? (a) a car seat belt (b) a car windscreen (c) a hair band (d) a raincoat
  6. 6.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  7. 7.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  8. 8.🧱 Which property matters most for a car windscreen? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  9. 9.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  10. 10.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  11. 11.Which of these needs a heat insulator? (a) a skipping rope (b) a raincoat (c) a water tank (d) an oven glove
  12. 12.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  13. 13.Which of these needs an electrical conductor? (a) an umbrella cover (b) a magnifier lens (c) a car seat belt (d) a switch contact
  14. 14.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a transparent material? (a) a raincoat (b) a cooking pot handle (c) a window pane (d) a tea flask lining
  16. 16.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  17. 17.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  18. 18.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  19. 19.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  21. 21.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  22. 22.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  23. 23.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) graphite (d) plastic
  24. 24.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  25. 25.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  26. 26.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  27. 27.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) iron (b) glass (c) dry wood (d) cotton cloth
  29. 29.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) rubber (d) clay pottery
  30. 30.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  31. 31.True or false: a hair band needs a waterproof material. (a) False (b) True
  32. 32.True or false: a car seat belt needs a flexible material. (a) False (b) True
  33. 33.True or false: a window pane needs a transparent material. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) steel (b) aluminium (c) iron (d) rubber
  35. 35.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  36. 36.🔍 Which is the odd one out? (a) aluminium (b) brass (c) copper (d) cotton cloth
  37. 37.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Which property matters most for an oven glove? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  40. 40.Which of these needs a heat insulator? (a) a tea flask lining (b) the core of a wire (c) a spectacle lens (d) a car seat belt

Answer key

  1. a conductor
  2. clay pottery
  3. a cooking pot handle
  4. a conductor
  5. a raincoat
  6. electrical conductor
  7. flexible
  8. transparent
  9. waterproof
  10. wood or plastic
  11. an oven glove
  12. True
  13. a switch contact
  14. an insulator
  15. a window pane
  16. glass
  17. transparent
  18. True
  19. an insulator
  20. False
  21. flexible
  22. copper
  23. graphite
  24. False
  25. steel
  26. False
  27. False
  28. iron
  29. aluminium
  30. electrical conductor
  31. False
  32. True
  33. True
  34. rubber
  35. transparent
  36. cotton cloth
  37. a conductor
  38. a conductor
  39. heat insulator
  40. a tea flask lining

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