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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 354 · 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 material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  2. 2.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  3. 3.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.Which of these needs a heat insulator? (a) a car windscreen (b) an oven glove (c) a spectacle lens (d) a switch contact
  5. 5.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  6. 6.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  7. 7.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  9. 9.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) steel (d) rubber
  12. 12.Which of these needs a waterproof material? (a) a plug pin (b) a yoga mat (c) a car windscreen (d) a boat hull
  13. 13.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) plastic (d) rubber
  14. 14.🧱 Which property matters most for a raincoat? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  15. 15.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  16. 16.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  17. 17.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  18. 18.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  19. 19.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  20. 20.Which of these needs a transparent material? (a) the core of a wire (b) a boat hull (c) a water tank (d) a magnifier lens
  21. 21.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) copper (d) steel
  22. 22.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  23. 23.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  24. 24.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) plastic (d) clay pottery
  29. 29.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) iron (d) graphite
  31. 31.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  32. 32.Which of these needs a heat insulator? (a) a cooking pot handle (b) a hair band (c) a roof sheet (d) a water tank
  33. 33.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  34. 34.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  35. 35.Which of these needs an electrical conductor? (a) an umbrella cover (b) a water tank (c) a spectacle lens (d) a switch contact
  36. 36.Which of these needs a flexible material? (a) a switch contact (b) a cooking pot handle (c) a plug pin (d) a skipping rope
  37. 37.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a flexible material? (a) an umbrella cover (b) a magnifier lens (c) a hair band (d) a cooking pot handle
  39. 39.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  40. 40.🔍 Which is the odd one out? (a) brass (b) graphite (c) aluminium (d) glass

Answer key

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

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