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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 480 · 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 aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🔍 Which is the odd one out? (a) aluminium (b) copper (c) rubber (d) graphite
  3. 3.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  4. 4.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🔍 Which is the odd one out? (a) brass (b) copper (c) dry wood (d) graphite
  6. 6.🧱 Which property matters most for a spectacle lens? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  7. 7.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) aluminium (d) plastic
  8. 8.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  9. 9.True or false: a raincoat needs a waterproof material. (a) True (b) False
  10. 10.Which of these needs a flexible material? (a) a spectacle lens (b) an oven glove (c) a car seat belt (d) the core of a wire
  11. 11.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  13. 13.Which of these needs a waterproof material? (a) a magnifier lens (b) a tea flask lining (c) a roof sheet (d) a window pane
  14. 14.Which of these needs an electrical conductor? (a) a raincoat (b) a window pane (c) a car seat belt (d) the core of a wire
  15. 15.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  16. 16.True or false: a hair band needs a flexible material. (a) True (b) False
  17. 17.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  18. 18.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  19. 19.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  22. 22.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  23. 23.🔍 Which is the odd one out? (a) graphite (b) iron (c) aluminium (d) glass
  24. 24.🔍 Which is the odd one out? (a) dry wood (b) iron (c) rubber (d) clay pottery
  25. 25.Which of these needs a waterproof material? (a) an umbrella cover (b) a car seat belt (c) a plug pin (d) a cooking pot handle
  26. 26.True or false: a switch contact needs a transparent material. (a) False (b) True
  27. 27.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  28. 28.Which of these needs a flexible material? (a) a water tank (b) a window pane (c) a cooking pot handle (d) a skipping rope
  29. 29.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  30. 30.True or false: a switch contact needs a flexible material. (a) False (b) True
  31. 31.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  32. 32.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  34. 34.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) iron (d) brass
  36. 36.True or false: a window pane needs an electrical conductor. (a) True (b) False
  37. 37.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  38. 38.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  39. 39.Which of these needs an electrical conductor? (a) a boat hull (b) a spectacle lens (c) an umbrella cover (d) a switch contact
  40. 40.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) transparent (d) heat insulator

Answer key

  1. a conductor
  2. rubber
  3. copper
  4. a conductor
  5. dry wood
  6. transparent
  7. aluminium
  8. True
  9. True
  10. a car seat belt
  11. an insulator
  12. waterproof
  13. a roof sheet
  14. the core of a wire
  15. wood or plastic
  16. True
  17. transparent
  18. plastic-coated cloth
  19. an insulator
  20. a conductor
  21. electrical conductor
  22. flexible
  23. glass
  24. iron
  25. an umbrella cover
  26. False
  27. waterproof
  28. a skipping rope
  29. glass
  30. False
  31. False
  32. an insulator
  33. flexible
  34. False
  35. plastic
  36. False
  37. False
  38. flexible
  39. a switch contact
  40. flexible

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