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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 571 · 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 graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a skipping rope needs a transparent material. (a) False (b) True
  3. 3.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  4. 4.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🔍 Which is the odd one out? (a) dry wood (b) copper (c) iron (d) aluminium
  6. 6.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) brass (b) iron (c) copper (d) clay pottery
  8. 8.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) brass (d) rubber
  9. 9.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) cotton cloth (d) copper
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.Which of these needs a transparent material? (a) a plug pin (b) a cooking pot handle (c) a window pane (d) a skipping rope
  12. 12.True or false: a car windscreen needs a transparent material. (a) True (b) False
  13. 13.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  14. 14.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  15. 15.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  16. 16.Which of these needs a flexible material? (a) a water tank (b) a spectacle lens (c) a hair band (d) a magnifier lens
  17. 17.Which of these needs a waterproof material? (a) a hair band (b) a car seat belt (c) the core of a wire (d) an umbrella cover
  18. 18.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) steel (d) copper
  19. 19.🧱 Which property matters most for the core of a wire? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  20. 20.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  21. 21.🧱 Which property matters most for a window pane? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  22. 22.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  23. 23.🧱 Which property matters most for a plug pin? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  24. 24.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  25. 25.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  26. 26.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  27. 27.Which of these needs a heat insulator? (a) a boat hull (b) a cooking pot handle (c) a spectacle lens (d) a window pane
  28. 28.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  30. 30.🔍 Which is the odd one out? (a) copper (b) aluminium (c) brass (d) glass
  31. 31.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  32. 32.Which of these needs a heat insulator? (a) a car seat belt (b) a tea flask lining (c) a boat hull (d) a hair band
  33. 33.True or false: a skipping rope needs a flexible material. (a) False (b) True
  34. 34.Which of these needs a heat insulator? (a) a car windscreen (b) a roof sheet (c) a boat hull (d) an oven glove
  35. 35.True or false: a water tank needs a waterproof material. (a) False (b) True
  36. 36.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  37. 37.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  40. 40.🧱 Which property matters most for a spectacle lens? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent

Answer key

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

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