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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 933 · 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 brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  3. 3.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  4. 4.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.Which of these needs a waterproof material? (a) a water tank (b) a car windscreen (c) a spectacle lens (d) the core of a wire
  7. 7.Which of these needs a transparent material? (a) a water tank (b) a yoga mat (c) a tea flask lining (d) a window pane
  8. 8.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) graphite (b) rubber (c) clay pottery (d) cotton cloth
  10. 10.Which of these needs a heat insulator? (a) a hair band (b) a boat hull (c) an oven glove (d) a water tank
  11. 11.True or false: the core of a wire needs a flexible material. (a) True (b) False
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  14. 14.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  16. 16.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) dry wood (d) copper
  17. 17.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  20. 20.Which of these needs a flexible material? (a) a hair band (b) a water tank (c) an umbrella cover (d) a cooking pot handle
  21. 21.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) aluminium (d) brass
  22. 22.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  23. 23.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  24. 24.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  25. 25.True or false: a boat hull needs a waterproof material. (a) True (b) False
  26. 26.Which of these needs a transparent material? (a) a switch contact (b) a plug pin (c) a magnifier lens (d) a hair band
  27. 27.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  28. 28.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  29. 29.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  30. 30.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  31. 31.🔍 Which is the odd one out? (a) graphite (b) iron (c) plastic (d) copper
  32. 32.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  33. 33.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) brass (d) clay pottery
  34. 34.Which of these needs a waterproof material? (a) a raincoat (b) a yoga mat (c) a spectacle lens (d) a car windscreen
  35. 35.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  36. 36.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  37. 37.True or false: a car windscreen needs an electrical conductor. (a) True (b) False
  38. 38.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) brass (b) copper (c) graphite (d) cotton cloth
  40. 40.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof

Answer key

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

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