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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 171 · 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 an oven glove? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  2. 2.🔍 Which is the odd one out? (a) iron (b) glass (c) copper (d) steel
  3. 3.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) copper (d) plastic
  5. 5.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🔍 Which is the odd one out? (a) iron (b) aluminium (c) cotton cloth (d) graphite
  7. 7.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  8. 8.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  9. 9.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  10. 10.True or false: a raincoat needs a heat insulator. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) copper (b) plastic (c) cotton cloth (d) clay pottery
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🔍 Which is the odd one out? (a) brass (b) dry wood (c) cotton cloth (d) clay pottery
  14. 14.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  15. 15.True or false: a water tank needs a flexible material. (a) True (b) False
  16. 16.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a transparent material? (a) a plug pin (b) a water tank (c) a tea flask lining (d) a spectacle lens
  18. 18.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  19. 19.Which of these needs a waterproof material? (a) an oven glove (b) a boat hull (c) a hair band (d) a tea flask lining
  20. 20.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.True or false: a window pane needs a heat insulator. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) glass (d) dry wood
  23. 23.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  24. 24.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  25. 25.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: a water tank needs a waterproof material. (a) False (b) True
  29. 29.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  30. 30.True or false: a hair band needs a flexible material. (a) True (b) False
  31. 31.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  32. 32.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) plastic (d) aluminium
  34. 34.True or false: the core of a wire needs a transparent material. (a) False (b) True
  35. 35.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  36. 36.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  37. 37.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  38. 38.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  39. 39.🔍 Which is the odd one out? (a) rubber (b) steel (c) iron (d) graphite
  40. 40.True or false: a plug pin needs an electrical conductor. (a) True (b) False

Answer key

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

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