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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 855 · 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 car seat belt? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  2. 2.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  3. 3.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) brass (b) aluminium (c) graphite (d) plastic
  8. 8.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  9. 9.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  10. 10.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  11. 11.Which of these needs a heat insulator? (a) a car seat belt (b) an oven glove (c) a water tank (d) a raincoat
  12. 12.🔍 Which is the odd one out? (a) brass (b) glass (c) aluminium (d) copper
  13. 13.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  14. 14.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🔍 Which is the odd one out? (a) brass (b) dry wood (c) graphite (d) iron
  16. 16.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  17. 17.🔍 Which is the odd one out? (a) rubber (b) steel (c) clay pottery (d) plastic
  18. 18.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  20. 20.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  21. 21.🔍 Which is the odd one out? (a) copper (b) graphite (c) aluminium (d) cotton cloth
  22. 22.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  23. 23.Which of these needs a transparent material? (a) a skipping rope (b) a water tank (c) the core of a wire (d) a window pane
  24. 24.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  25. 25.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  26. 26.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  27. 27.Which of these needs an electrical conductor? (a) a spectacle lens (b) a plug pin (c) an umbrella cover (d) a boat hull
  28. 28.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  29. 29.Which of these needs an electrical conductor? (a) an umbrella cover (b) a skipping rope (c) a roof sheet (d) the core of a wire
  30. 30.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  31. 31.True or false: a switch contact needs a transparent material. (a) True (b) False
  32. 32.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  34. 34.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  35. 35.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) rubber (d) graphite
  36. 36.🔍 Which is the odd one out? (a) iron (b) aluminium (c) rubber (d) graphite
  37. 37.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  38. 38.True or false: the core of a wire needs a flexible material. (a) False (b) True
  39. 39.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. flexible
  2. True
  3. copper
  4. an insulator
  5. a conductor
  6. True
  7. plastic
  8. wood or plastic
  9. False
  10. True
  11. an oven glove
  12. glass
  13. plastic-coated cloth
  14. a conductor
  15. dry wood
  16. steel
  17. steel
  18. an insulator
  19. heat insulator
  20. glass
  21. cotton cloth
  22. transparent
  23. a window pane
  24. waterproof
  25. transparent
  26. electrical conductor
  27. a plug pin
  28. waterproof
  29. the core of a wire
  30. False
  31. False
  32. an insulator
  33. True
  34. True
  35. graphite
  36. rubber
  37. True
  38. False
  39. a conductor
  40. an insulator

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