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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 133 · 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 is the odd one out? (a) copper (b) dry wood (c) glass (d) rubber
  2. 2.True or false: a switch contact needs a heat insulator. (a) False (b) True
  3. 3.True or false: a switch contact needs a waterproof material. (a) False (b) True
  4. 4.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  5. 5.🧱 Which property matters most for a plug pin? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  6. 6.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  7. 7.🔍 Which is the odd one out? (a) copper (b) aluminium (c) glass (d) steel
  8. 8.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  9. 9.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  12. 12.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) cotton cloth (d) aluminium
  13. 13.Which of these needs a waterproof material? (a) a cooking pot handle (b) an oven glove (c) a water tank (d) a car seat belt
  14. 14.🔍 Which is the odd one out? (a) iron (b) rubber (c) brass (d) steel
  15. 15.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  16. 16.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  17. 17.Which of these needs a flexible material? (a) a magnifier lens (b) an umbrella cover (c) a yoga mat (d) a car windscreen
  18. 18.Which of these needs a transparent material? (a) a raincoat (b) a water tank (c) a spectacle lens (d) a boat hull
  19. 19.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  20. 20.True or false: a car windscreen needs an electrical conductor. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) steel (b) plastic (c) rubber (d) dry wood
  22. 22.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  23. 23.Which of these needs a waterproof material? (a) a boat hull (b) an oven glove (c) a plug pin (d) a car windscreen
  24. 24.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these needs a waterproof material? (a) a hair band (b) an umbrella cover (c) a plug pin (d) a yoga mat
  26. 26.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  28. 28.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  29. 29.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.Which of these needs a heat insulator? (a) a plug pin (b) a hair band (c) a tea flask lining (d) a magnifier lens
  31. 31.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  34. 34.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  36. 36.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  37. 37.Which of these needs a transparent material? (a) a water tank (b) an umbrella cover (c) a window pane (d) a car seat belt
  38. 38.True or false: a plug pin needs a flexible material. (a) False (b) True
  39. 39.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic

Answer key

  1. copper
  2. False
  3. False
  4. True
  5. electrical conductor
  6. waterproof
  7. glass
  8. flexible
  9. an insulator
  10. a conductor
  11. steel
  12. aluminium
  13. a water tank
  14. rubber
  15. transparent
  16. copper
  17. a yoga mat
  18. a spectacle lens
  19. waterproof
  20. False
  21. steel
  22. False
  23. a boat hull
  24. a conductor
  25. an umbrella cover
  26. an insulator
  27. True
  28. transparent
  29. an insulator
  30. a tea flask lining
  31. an insulator
  32. a conductor
  33. glass
  34. a conductor
  35. flexible
  36. transparent
  37. a window pane
  38. False
  39. a conductor
  40. wood or plastic

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