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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 117 · 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 rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) dry wood (d) aluminium
  3. 3.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  4. 4.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  5. 5.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  6. 6.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  7. 7.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) steel (d) clay pottery
  8. 8.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these needs a heat insulator? (a) a switch contact (b) a boat hull (c) a cooking pot handle (d) a yoga mat
  10. 10.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.True or false: a plug pin needs a flexible material. (a) True (b) False
  12. 12.Which of these needs a waterproof material? (a) a window pane (b) an oven glove (c) a spectacle lens (d) a raincoat
  13. 13.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  14. 14.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  15. 15.Which of these needs a waterproof material? (a) a skipping rope (b) a boat hull (c) a yoga mat (d) a cooking pot handle
  16. 16.True or false: a yoga mat needs a flexible material. (a) False (b) True
  17. 17.True or false: a hair band needs an electrical conductor. (a) False (b) True
  18. 18.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  19. 19.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  20. 20.🔍 Which is the odd one out? (a) iron (b) brass (c) graphite (d) rubber
  21. 21.Which of these needs a flexible material? (a) a roof sheet (b) a boat hull (c) a tea flask lining (d) a car seat belt
  22. 22.Which of these needs a flexible material? (a) a skipping rope (b) a window pane (c) the core of a wire (d) an umbrella cover
  23. 23.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  25. 25.True or false: a car windscreen needs a flexible material. (a) False (b) True
  26. 26.True or false: a hair band needs a waterproof material. (a) True (b) False
  27. 27.Which of these needs a flexible material? (a) the core of a wire (b) a hair band (c) a window pane (d) a water tank
  28. 28.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  29. 29.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  30. 30.🔍 Which is the odd one out? (a) plastic (b) rubber (c) steel (d) dry wood
  31. 31.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  32. 32.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a window pane (c) a switch contact (d) an oven glove
  33. 33.True or false: an oven glove needs a heat insulator. (a) True (b) False
  34. 34.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  35. 35.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) glass (b) copper (c) rubber (d) dry wood
  37. 37.🔍 Which is the odd one out? (a) steel (b) brass (c) plastic (d) iron
  38. 38.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  39. 39.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  40. 40.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. an insulator
  2. aluminium
  3. electrical conductor
  4. flexible
  5. True
  6. glass
  7. clay pottery
  8. a conductor
  9. a cooking pot handle
  10. a conductor
  11. False
  12. a raincoat
  13. copper
  14. plastic-coated cloth
  15. a boat hull
  16. True
  17. False
  18. False
  19. wood or plastic
  20. rubber
  21. a car seat belt
  22. a skipping rope
  23. a conductor
  24. waterproof
  25. False
  26. False
  27. a hair band
  28. transparent
  29. transparent
  30. steel
  31. waterproof
  32. a switch contact
  33. True
  34. False
  35. False
  36. copper
  37. plastic
  38. flexible
  39. False
  40. an insulator

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