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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 351 · 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 aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a raincoat needs a waterproof material. (a) False (b) True
  3. 3.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.Which of these needs a transparent material? (a) a yoga mat (b) a magnifier lens (c) a roof sheet (d) a raincoat
  5. 5.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  6. 6.Which of these needs an electrical conductor? (a) an oven glove (b) the core of a wire (c) a boat hull (d) a yoga mat
  7. 7.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  8. 8.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  9. 9.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  10. 10.True or false: a roof sheet needs a transparent material. (a) True (b) False
  11. 11.Which of these needs a waterproof material? (a) a cooking pot handle (b) a window pane (c) a car windscreen (d) a roof sheet
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a car windscreen? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) rubber (d) copper
  16. 16.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) dry wood (d) steel
  17. 17.🔍 Which is the odd one out? (a) iron (b) plastic (c) brass (d) graphite
  18. 18.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs an electrical conductor? (a) a roof sheet (b) an oven glove (c) an umbrella cover (d) a plug pin
  20. 20.Which of these needs a heat insulator? (a) an umbrella cover (b) a magnifier lens (c) a cooking pot handle (d) a spectacle lens
  21. 21.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  22. 22.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  23. 23.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  24. 24.Which of these needs a heat insulator? (a) an umbrella cover (b) a tea flask lining (c) a boat hull (d) a car windscreen
  25. 25.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  26. 26.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  27. 27.Which of these needs an electrical conductor? (a) a tea flask lining (b) a switch contact (c) a water tank (d) a skipping rope
  28. 28.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  29. 29.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🔍 Which is the odd one out? (a) steel (b) graphite (c) glass (d) aluminium
  31. 31.🔍 Which is the odd one out? (a) dry wood (b) glass (c) clay pottery (d) copper
  32. 32.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  33. 33.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  34. 34.Which of these needs a transparent material? (a) a yoga mat (b) a water tank (c) a spectacle lens (d) an umbrella cover
  35. 35.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  36. 36.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  37. 37.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  38. 38.True or false: the core of a wire needs a flexible material. (a) False (b) True
  39. 39.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  40. 40.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) transparent (d) flexible

Answer key

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

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