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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 357 · 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 a window pane? (a) glass (b) wood (c) steel (d) brick
  2. 2.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  3. 3.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  4. 4.Which of these needs a waterproof material? (a) an oven glove (b) a water tank (c) a switch contact (d) a cooking pot handle
  5. 5.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  6. 6.Which of these needs a transparent material? (a) an umbrella cover (b) a spectacle lens (c) a hair band (d) a yoga mat
  7. 7.True or false: a boat hull needs a transparent material. (a) True (b) False
  8. 8.🔍 Which is the odd one out? (a) aluminium (b) glass (c) rubber (d) cotton cloth
  9. 9.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.Which of these needs a flexible material? (a) a car windscreen (b) a tea flask lining (c) a car seat belt (d) a raincoat
  11. 11.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) aluminium (d) iron
  12. 12.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  13. 13.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  14. 14.Which of these needs a heat insulator? (a) a car windscreen (b) a water tank (c) a cooking pot handle (d) a window pane
  15. 15.True or false: a plug pin needs a flexible material. (a) False (b) True
  16. 16.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  18. 18.🔍 Which is the odd one out? (a) iron (b) brass (c) aluminium (d) rubber
  19. 19.Which of these needs a waterproof material? (a) a car windscreen (b) an umbrella cover (c) a car seat belt (d) a yoga mat
  20. 20.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  21. 21.True or false: a raincoat needs a flexible material. (a) False (b) True
  22. 22.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  23. 23.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  24. 24.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  25. 25.Which of these needs a flexible material? (a) a hair band (b) a window pane (c) an umbrella cover (d) a spectacle lens
  26. 26.True or false: a raincoat needs a transparent material. (a) False (b) True
  27. 27.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  28. 28.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: an oven glove needs a heat insulator. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) steel (b) dry wood (c) plastic (d) cotton cloth
  32. 32.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  34. 34.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  35. 35.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) copper (b) steel (c) iron (d) plastic
  37. 37.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  38. 38.True or false: a car windscreen needs a transparent material. (a) True (b) False
  39. 39.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: a water tank needs a flexible material. (a) False (b) True

Answer key

  1. glass
  2. copper
  3. plastic-coated cloth
  4. a water tank
  5. False
  6. a spectacle lens
  7. False
  8. aluminium
  9. an insulator
  10. a car seat belt
  11. wood or plastic
  12. False
  13. steel
  14. a cooking pot handle
  15. False
  16. an insulator
  17. waterproof
  18. rubber
  19. an umbrella cover
  20. transparent
  21. False
  22. flexible
  23. flexible
  24. waterproof
  25. a hair band
  26. False
  27. False
  28. waterproof
  29. a conductor
  30. True
  31. steel
  32. a conductor
  33. True
  34. transparent
  35. False
  36. plastic
  37. heat insulator
  38. True
  39. a conductor
  40. False

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