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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 528 · 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 a switch contact? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  2. 2.True or false: a hair band needs an electrical conductor. (a) False (b) True
  3. 3.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  4. 4.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  5. 5.Which of these needs an electrical conductor? (a) a boat hull (b) a spectacle lens (c) an umbrella cover (d) the core of a wire
  6. 6.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  7. 7.🔍 Which is the odd one out? (a) steel (b) plastic (c) brass (d) iron
  8. 8.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  10. 10.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  11. 11.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  12. 12.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  13. 13.🧱 Which property matters most for a magnifier lens? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  14. 14.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) glass (d) copper
  15. 15.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  16. 16.Which of these needs a waterproof material? (a) a water tank (b) a magnifier lens (c) a switch contact (d) a window pane
  17. 17.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  18. 18.Which of these needs a heat insulator? (a) a roof sheet (b) a plug pin (c) the core of a wire (d) a cooking pot handle
  19. 19.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  20. 20.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) dry wood (d) aluminium
  22. 22.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  23. 23.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  24. 24.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  25. 25.True or false: an oven glove needs a heat insulator. (a) False (b) True
  26. 26.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  27. 27.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🔍 Which is the odd one out? (a) glass (b) brass (c) clay pottery (d) rubber
  29. 29.Which of these needs a heat insulator? (a) a plug pin (b) a water tank (c) a tea flask lining (d) a skipping rope
  30. 30.Which of these needs an electrical conductor? (a) a yoga mat (b) a plug pin (c) an umbrella cover (d) a car seat belt
  31. 31.Which of these needs a transparent material? (a) a car seat belt (b) a window pane (c) an oven glove (d) a raincoat
  32. 32.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.Which of these needs a transparent material? (a) a hair band (b) a car seat belt (c) a magnifier lens (d) a cooking pot handle
  34. 34.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  35. 35.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🔍 Which is the odd one out? (a) copper (b) graphite (c) aluminium (d) cotton cloth
  37. 37.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  39. 39.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  40. 40.Which of these needs a flexible material? (a) a magnifier lens (b) a roof sheet (c) a hair band (d) a tea flask lining

Answer key

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

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