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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 54 · 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 window pane? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  2. 2.🔍 Which is the odd one out? (a) plastic (b) graphite (c) copper (d) steel
  3. 3.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) aluminium (d) steel
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  7. 7.True or false: a switch contact needs a transparent material. (a) True (b) False
  8. 8.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  9. 9.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  10. 10.Which of these needs a waterproof material? (a) a skipping rope (b) a magnifier lens (c) a yoga mat (d) a boat hull
  11. 11.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  12. 12.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) brass (d) copper
  13. 13.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  14. 14.Which of these needs a waterproof material? (a) a roof sheet (b) a window pane (c) a magnifier lens (d) a tea flask lining
  15. 15.🔍 Which is the odd one out? (a) plastic (b) rubber (c) dry wood (d) copper
  16. 16.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  19. 19.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  20. 20.Which of these needs a heat insulator? (a) a window pane (b) a plug pin (c) a yoga mat (d) a cooking pot handle
  21. 21.🔍 Which is the odd one out? (a) steel (b) brass (c) glass (d) copper
  22. 22.Which of these needs a transparent material? (a) a magnifier lens (b) a raincoat (c) a plug pin (d) the core of a wire
  23. 23.🔍 Which is the odd one out? (a) steel (b) brass (c) graphite (d) cotton cloth
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a hair band needs a waterproof material. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) rubber (b) steel (c) plastic (d) glass
  27. 27.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  28. 28.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  29. 29.🧱 Which property matters most for an oven glove? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  30. 30.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  31. 31.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  32. 32.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  34. 34.True or false: a water tank needs a heat insulator. (a) True (b) False
  35. 35.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  36. 36.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a waterproof material? (a) the core of a wire (b) a car seat belt (c) an umbrella cover (d) an oven glove
  38. 38.Which of these needs an electrical conductor? (a) a roof sheet (b) a yoga mat (c) the core of a wire (d) a window pane
  39. 39.Which of these needs a heat insulator? (a) a yoga mat (b) a window pane (c) a skipping rope (d) a tea flask lining
  40. 40.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

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

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