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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 753 · 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 is the odd one out? (a) graphite (b) aluminium (c) plastic (d) iron
  2. 2.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  3. 3.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  4. 4.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  6. 6.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.True or false: a window pane needs a transparent material. (a) True (b) False
  8. 8.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  10. 10.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  12. 12.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  13. 13.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  15. 15.🔍 Which is the odd one out? (a) brass (b) aluminium (c) dry wood (d) graphite
  16. 16.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  17. 17.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  18. 18.True or false: a water tank needs a waterproof material. (a) False (b) True
  19. 19.True or false: a skipping rope needs a flexible material. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) plastic (d) clay pottery
  21. 21.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) aluminium (d) brass
  23. 23.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  24. 24.Which of these needs a heat insulator? (a) a boat hull (b) a roof sheet (c) a raincoat (d) a tea flask lining
  25. 25.Which of these needs a heat insulator? (a) a water tank (b) a magnifier lens (c) a boat hull (d) a cooking pot handle
  26. 26.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  27. 27.🔍 Which is the odd one out? (a) glass (b) steel (c) aluminium (d) brass
  28. 28.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  29. 29.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  30. 30.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  31. 31.🧱 Which property matters most for a raincoat? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  32. 32.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) rubber (d) copper
  34. 34.Which of these needs an electrical conductor? (a) a water tank (b) a switch contact (c) a yoga mat (d) a hair band
  35. 35.🧱 Which property matters most for a magnifier lens? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  36. 36.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  37. 37.🔍 Which is the odd one out? (a) steel (b) plastic (c) glass (d) cotton cloth
  38. 38.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  40. 40.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator

Answer key

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

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