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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 605 · 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 copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🔍 Which is the odd one out? (a) steel (b) copper (c) plastic (d) aluminium
  4. 4.Which of these needs a heat insulator? (a) a switch contact (b) a water tank (c) a raincoat (d) a cooking pot handle
  5. 5.🔍 Which is the odd one out? (a) rubber (b) brass (c) iron (d) steel
  6. 6.🧱 Which property matters most for a car seat belt? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  7. 7.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  8. 8.True or false: a raincoat needs a heat insulator. (a) False (b) True
  9. 9.True or false: a hair band needs a flexible material. (a) True (b) False
  10. 10.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  11. 11.True or false: a boat hull needs a flexible material. (a) True (b) False
  12. 12.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  13. 13.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  15. 15.Which of these needs a heat insulator? (a) a roof sheet (b) a raincoat (c) a tea flask lining (d) a boat hull
  16. 16.True or false: a water tank needs a transparent material. (a) True (b) False
  17. 17.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  18. 18.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  19. 19.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) plastic (d) rubber
  20. 20.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  22. 22.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs an electrical conductor? (a) a plug pin (b) an umbrella cover (c) a spectacle lens (d) a roof sheet
  24. 24.Which of these needs a waterproof material? (a) a cooking pot handle (b) a roof sheet (c) a tea flask lining (d) a spectacle lens
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.True or false: a window pane needs a waterproof material. (a) False (b) True
  27. 27.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  28. 28.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  29. 29.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  31. 31.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  32. 32.🧱 Which property matters most for a window pane? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  33. 33.True or false: a car windscreen needs a transparent material. (a) True (b) False
  34. 34.Which of these needs a flexible material? (a) a boat hull (b) a cooking pot handle (c) a skipping rope (d) a spectacle lens
  35. 35.True or false: a yoga mat needs a flexible material. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) brass (b) iron (c) copper (d) clay pottery
  37. 37.🔍 Which is the odd one out? (a) steel (b) plastic (c) cotton cloth (d) dry wood
  38. 38.Which of these needs a transparent material? (a) a car seat belt (b) a spectacle lens (c) a raincoat (d) a boat hull
  39. 39.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.Which of these needs a transparent material? (a) a skipping rope (b) a car windscreen (c) a cooking pot handle (d) a tea flask lining

Answer key

  1. a conductor
  2. an insulator
  3. plastic
  4. a cooking pot handle
  5. rubber
  6. flexible
  7. glass
  8. False
  9. True
  10. False
  11. False
  12. waterproof
  13. a conductor
  14. wood or plastic
  15. a tea flask lining
  16. False
  17. False
  18. copper
  19. aluminium
  20. an insulator
  21. waterproof
  22. a conductor
  23. a plug pin
  24. a roof sheet
  25. an insulator
  26. False
  27. electrical conductor
  28. heat insulator
  29. an insulator
  30. False
  31. False
  32. transparent
  33. True
  34. a skipping rope
  35. True
  36. clay pottery
  37. steel
  38. a spectacle lens
  39. an insulator
  40. a car windscreen

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