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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 251 · 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 an oven glove? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  2. 2.🔍 Which is the odd one out? (a) dry wood (b) brass (c) glass (d) cotton cloth
  3. 3.🔍 Which is the odd one out? (a) steel (b) copper (c) brass (d) rubber
  4. 4.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) steel (d) dry wood
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  7. 7.🧱 Which property matters most for a yoga mat? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  8. 8.Which of these needs a transparent material? (a) a window pane (b) the core of a wire (c) a skipping rope (d) a raincoat
  9. 9.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  11. 11.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  12. 12.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  13. 13.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  14. 14.Which of these needs a waterproof material? (a) a plug pin (b) a spectacle lens (c) a water tank (d) a car seat belt
  15. 15.Which of these needs a heat insulator? (a) a plug pin (b) a tea flask lining (c) a boat hull (d) the core of a wire
  16. 16.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  18. 18.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  19. 19.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  20. 20.Which of these needs a waterproof material? (a) a boat hull (b) a skipping rope (c) a hair band (d) a spectacle lens
  21. 21.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  22. 22.Which of these needs a transparent material? (a) a skipping rope (b) a magnifier lens (c) the core of a wire (d) a boat hull
  23. 23.True or false: a window pane needs an electrical conductor. (a) False (b) True
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  26. 26.Which of these needs an electrical conductor? (a) a spectacle lens (b) a boat hull (c) the core of a wire (d) a window pane
  27. 27.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  28. 28.Which of these needs a transparent material? (a) a skipping rope (b) a plug pin (c) a car windscreen (d) an umbrella cover
  29. 29.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  30. 30.True or false: a boat hull needs a waterproof material. (a) True (b) False
  31. 31.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) cotton cloth (d) aluminium
  33. 33.🔍 Which is the odd one out? (a) copper (b) steel (c) cotton cloth (d) aluminium
  34. 34.🔍 Which is the odd one out? (a) brass (b) iron (c) aluminium (d) glass
  35. 35.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  36. 36.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  37. 37.Which of these needs an electrical conductor? (a) a raincoat (b) a boat hull (c) a plug pin (d) a car seat belt
  38. 38.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  39. 39.🔍 Which is the odd one out? (a) steel (b) brass (c) plastic (d) iron
  40. 40.True or false: a hair band needs a flexible material. (a) True (b) False

Answer key

  1. heat insulator
  2. brass
  3. rubber
  4. an insulator
  5. steel
  6. steel
  7. flexible
  8. a window pane
  9. a conductor
  10. electrical conductor
  11. False
  12. flexible
  13. False
  14. a water tank
  15. a tea flask lining
  16. a conductor
  17. True
  18. copper
  19. False
  20. a boat hull
  21. heat insulator
  22. a magnifier lens
  23. False
  24. an insulator
  25. False
  26. the core of a wire
  27. flexible
  28. a car windscreen
  29. waterproof
  30. True
  31. False
  32. aluminium
  33. cotton cloth
  34. glass
  35. wood or plastic
  36. flexible
  37. a plug pin
  38. transparent
  39. plastic
  40. True

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