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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 279 · 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 iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  3. 3.Which of these needs a flexible material? (a) an oven glove (b) a switch contact (c) the core of a wire (d) a hair band
  4. 4.Which of these needs a heat insulator? (a) a cooking pot handle (b) a plug pin (c) the core of a wire (d) a water tank
  5. 5.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) copper (d) dry wood
  6. 6.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  7. 7.True or false: an oven glove needs a heat insulator. (a) False (b) True
  8. 8.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🔍 Which is the odd one out? (a) graphite (b) brass (c) rubber (d) copper
  10. 10.Which of these needs an electrical conductor? (a) a switch contact (b) a car windscreen (c) a boat hull (d) a water tank
  11. 11.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  12. 12.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  13. 13.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  14. 14.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  15. 15.Which of these needs a heat insulator? (a) a boat hull (b) a switch contact (c) a roof sheet (d) a tea flask lining
  16. 16.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  17. 17.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  18. 18.Which of these needs a transparent material? (a) a car windscreen (b) the core of a wire (c) a yoga mat (d) an oven glove
  19. 19.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.True or false: a window pane needs a transparent material. (a) False (b) True
  21. 21.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) iron (d) copper
  23. 23.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  25. 25.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  26. 26.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.True or false: a raincoat needs a waterproof material. (a) False (b) True
  28. 28.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  30. 30.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  31. 31.Which of these needs a transparent material? (a) a hair band (b) a raincoat (c) a magnifier lens (d) a tea flask lining
  32. 32.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  33. 33.Which of these needs a flexible material? (a) a window pane (b) a spectacle lens (c) a car seat belt (d) a magnifier lens
  34. 34.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  35. 35.Which of these needs a waterproof material? (a) the core of a wire (b) a tea flask lining (c) a hair band (d) a boat hull
  36. 36.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  37. 37.True or false: a water tank needs a flexible material. (a) True (b) False
  38. 38.True or false: a magnifier lens needs an electrical conductor. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) clay pottery (d) brass
  40. 40.Which of these needs a heat insulator? (a) a yoga mat (b) a hair band (c) an oven glove (d) a switch contact

Answer key

  1. a conductor
  2. True
  3. a hair band
  4. a cooking pot handle
  5. copper
  6. True
  7. True
  8. a conductor
  9. rubber
  10. a switch contact
  11. waterproof
  12. heat insulator
  13. electrical conductor
  14. False
  15. a tea flask lining
  16. True
  17. False
  18. a car windscreen
  19. an insulator
  20. True
  21. False
  22. dry wood
  23. an insulator
  24. copper
  25. wood or plastic
  26. a conductor
  27. True
  28. a conductor
  29. glass
  30. transparent
  31. a magnifier lens
  32. flexible
  33. a car seat belt
  34. False
  35. a boat hull
  36. heat insulator
  37. False
  38. False
  39. clay pottery
  40. an oven glove

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