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Engineering Worksheet: Materials

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

Answer key

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

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