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Engineering Worksheet: Materials

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

Answer key

  1. steel
  2. wood or plastic
  3. cotton cloth
  4. clay pottery
  5. an insulator
  6. True
  7. True
  8. a conductor
  9. plastic
  10. electrical conductor
  11. glass
  12. flexible
  13. True
  14. heat insulator
  15. a skipping rope
  16. False
  17. False
  18. electrical conductor
  19. dry wood
  20. a switch contact
  21. flexible
  22. waterproof
  23. copper
  24. graphite
  25. waterproof
  26. heat insulator
  27. waterproof
  28. an oven glove
  29. a conductor
  30. iron
  31. True
  32. rubber
  33. copper
  34. an insulator
  35. False
  36. True
  37. a window pane
  38. a conductor
  39. a boat hull
  40. an insulator

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