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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 320 · 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 is the odd one out? (a) copper (b) plastic (c) dry wood (d) rubber
  2. 2.Which of these needs a waterproof material? (a) a water tank (b) a cooking pot handle (c) a plug pin (d) a switch contact
  3. 3.True or false: a hair band needs a flexible material. (a) False (b) True
  4. 4.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  5. 5.🧱 Which property matters most for an oven glove? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  7. 7.Which of these needs a flexible material? (a) a plug pin (b) a roof sheet (c) a hair band (d) a tea flask lining
  8. 8.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) cotton cloth (d) clay pottery
  9. 9.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  10. 10.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  11. 11.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: the core of a wire needs a flexible material. (a) True (b) False
  13. 13.True or false: a skipping rope needs a heat insulator. (a) False (b) True
  14. 14.True or false: a roof sheet needs a flexible material. (a) True (b) False
  15. 15.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  16. 16.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) glass (d) plastic
  17. 17.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  18. 18.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) steel (d) copper
  20. 20.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  21. 21.True or false: a boat hull needs a flexible material. (a) True (b) False
  22. 22.Which of these needs a heat insulator? (a) a cooking pot handle (b) a window pane (c) a water tank (d) the core of a wire
  23. 23.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) cotton cloth (d) graphite
  25. 25.True or false: a magnifier lens needs an electrical conductor. (a) False (b) True
  26. 26.Which of these needs an electrical conductor? (a) a hair band (b) a roof sheet (c) a switch contact (d) a boat hull
  27. 27.Which of these needs a flexible material? (a) a car seat belt (b) a roof sheet (c) an umbrella cover (d) a water tank
  28. 28.Which of these needs an electrical conductor? (a) the core of a wire (b) a cooking pot handle (c) a magnifier lens (d) a car seat belt
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  31. 31.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  32. 32.True or false: a window pane needs a flexible material. (a) True (b) False
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.Which of these needs a transparent material? (a) a spectacle lens (b) a raincoat (c) a switch contact (d) an oven glove
  35. 35.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.True or false: a boat hull needs a waterproof material. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) brass (b) rubber (c) glass (d) plastic
  38. 38.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  39. 39.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) aluminium (d) brass
  40. 40.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. copper
  2. a water tank
  3. True
  4. electrical conductor
  5. heat insulator
  6. steel
  7. a hair band
  8. aluminium
  9. flexible
  10. waterproof
  11. an insulator
  12. False
  13. False
  14. False
  15. waterproof
  16. steel
  17. False
  18. a conductor
  19. clay pottery
  20. wood or plastic
  21. False
  22. a cooking pot handle
  23. False
  24. graphite
  25. False
  26. a switch contact
  27. a car seat belt
  28. the core of a wire
  29. a conductor
  30. heat insulator
  31. True
  32. False
  33. a conductor
  34. a spectacle lens
  35. a conductor
  36. True
  37. brass
  38. flexible
  39. cotton cloth
  40. a conductor

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