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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 901 · 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) plastic (b) aluminium (c) clay pottery (d) dry wood
  2. 2.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  3. 3.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.Which of these needs a heat insulator? (a) a boat hull (b) a raincoat (c) a yoga mat (d) a cooking pot handle
  5. 5.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  6. 6.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) brass (d) iron
  7. 7.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  8. 8.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  9. 9.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  10. 10.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  11. 11.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.True or false: a boat hull needs a flexible material. (a) False (b) True
  15. 15.True or false: a boat hull needs a waterproof material. (a) True (b) False
  16. 16.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  17. 17.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) dry wood (d) graphite
  18. 18.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  19. 19.True or false: an oven glove needs a heat insulator. (a) False (b) True
  20. 20.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  21. 21.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  22. 22.🔍 Which is the odd one out? (a) steel (b) iron (c) clay pottery (d) aluminium
  23. 23.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which property matters most for a plug pin? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  25. 25.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  26. 26.Which of these needs a transparent material? (a) a roof sheet (b) a spectacle lens (c) an oven glove (d) a hair band
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  29. 29.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  30. 30.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: a yoga mat needs a flexible material. (a) True (b) False
  32. 32.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  33. 33.True or false: a skipping rope needs a flexible material. (a) False (b) True
  34. 34.True or false: the core of a wire needs a transparent material. (a) True (b) False
  35. 35.Which of these needs a transparent material? (a) a cooking pot handle (b) a car windscreen (c) a tea flask lining (d) a switch contact
  36. 36.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.True or false: a water tank needs a transparent material. (a) True (b) False
  39. 39.Which of these needs a waterproof material? (a) an umbrella cover (b) a plug pin (c) a spectacle lens (d) a car seat belt
  40. 40.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) electrical conductor (d) waterproof

Answer key

  1. aluminium
  2. wood or plastic
  3. a conductor
  4. a cooking pot handle
  5. heat insulator
  6. dry wood
  7. False
  8. False
  9. flexible
  10. waterproof
  11. an insulator
  12. an insulator
  13. an insulator
  14. False
  15. True
  16. copper
  17. graphite
  18. waterproof
  19. True
  20. waterproof
  21. False
  22. clay pottery
  23. an insulator
  24. electrical conductor
  25. steel
  26. a spectacle lens
  27. a conductor
  28. glass
  29. electrical conductor
  30. an insulator
  31. True
  32. transparent
  33. True
  34. False
  35. a car windscreen
  36. a conductor
  37. a conductor
  38. False
  39. an umbrella cover
  40. flexible

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