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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 468 · 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 iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  5. 5.🔍 Which is the odd one out? (a) steel (b) brass (c) iron (d) rubber
  6. 6.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  7. 7.Which of these needs a transparent material? (a) a water tank (b) a boat hull (c) a spectacle lens (d) a tea flask lining
  8. 8.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  9. 9.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  10. 10.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  12. 12.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  13. 13.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  14. 14.True or false: a window pane needs a waterproof material. (a) False (b) True
  15. 15.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  16. 16.🔍 Which is the odd one out? (a) glass (b) plastic (c) clay pottery (d) steel
  17. 17.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  18. 18.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) iron (d) graphite
  20. 20.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  21. 21.True or false: a car windscreen needs a transparent material. (a) False (b) True
  22. 22.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) rubber (b) plastic (c) dry wood (d) aluminium
  24. 24.🔍 Which is the odd one out? (a) glass (b) rubber (c) clay pottery (d) iron
  25. 25.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) clay pottery (d) glass
  26. 26.True or false: a window pane needs an electrical conductor. (a) True (b) False
  27. 27.True or false: a yoga mat needs a flexible material. (a) False (b) True
  28. 28.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  29. 29.Which of these needs a heat insulator? (a) a plug pin (b) the core of a wire (c) a boat hull (d) a tea flask lining
  30. 30.🔍 Which is the odd one out? (a) graphite (b) glass (c) rubber (d) cotton cloth
  31. 31.🔍 Which is the odd one out? (a) copper (b) iron (c) clay pottery (d) aluminium
  32. 32.Which of these needs a waterproof material? (a) an umbrella cover (b) a window pane (c) a tea flask lining (d) a spectacle lens
  33. 33.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  34. 34.True or false: a skipping rope needs a flexible material. (a) False (b) True
  35. 35.True or false: a boat hull needs a heat insulator. (a) False (b) True
  36. 36.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  37. 37.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  38. 38.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  39. 39.True or false: a car seat belt needs a flexible material. (a) False (b) True
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. a conductor
  2. True
  3. an insulator
  4. glass
  5. rubber
  6. plastic-coated cloth
  7. a spectacle lens
  8. wood or plastic
  9. steel
  10. an insulator
  11. waterproof
  12. False
  13. copper
  14. False
  15. flexible
  16. steel
  17. True
  18. an insulator
  19. cotton cloth
  20. False
  21. True
  22. a conductor
  23. aluminium
  24. iron
  25. brass
  26. False
  27. True
  28. electrical conductor
  29. a tea flask lining
  30. graphite
  31. clay pottery
  32. an umbrella cover
  33. False
  34. True
  35. False
  36. waterproof
  37. False
  38. False
  39. True
  40. a conductor

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