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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 145 · 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.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  2. 2.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) copper (d) graphite
  3. 3.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.True or false: an oven glove needs a waterproof material. (a) False (b) True
  5. 5.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  6. 6.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  7. 7.Which of these needs a transparent material? (a) a boat hull (b) a water tank (c) a spectacle lens (d) a switch contact
  8. 8.🔍 Which is the odd one out? (a) iron (b) rubber (c) aluminium (d) copper
  9. 9.🔍 Which is the odd one out? (a) steel (b) copper (c) clay pottery (d) brass
  10. 10.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  11. 11.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.Which of these needs a transparent material? (a) a magnifier lens (b) a roof sheet (c) the core of a wire (d) an umbrella cover
  13. 13.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  14. 14.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  15. 15.Which of these needs a heat insulator? (a) a roof sheet (b) a water tank (c) an umbrella cover (d) an oven glove
  16. 16.True or false: a switch contact needs a heat insulator. (a) True (b) False
  17. 17.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  18. 18.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  19. 19.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a magnifier lens? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  21. 21.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) iron (d) clay pottery
  22. 22.Which of these needs an electrical conductor? (a) a skipping rope (b) a raincoat (c) a switch contact (d) a roof sheet
  23. 23.True or false: a skipping rope needs a flexible material. (a) False (b) True
  24. 24.True or false: a hair band needs a flexible material. (a) False (b) True
  25. 25.Which of these needs an electrical conductor? (a) a cooking pot handle (b) the core of a wire (c) an oven glove (d) a spectacle lens
  26. 26.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) rubber (d) aluminium
  27. 27.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  28. 28.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  29. 29.True or false: a switch contact needs a waterproof material. (a) True (b) False
  30. 30.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  31. 31.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  32. 32.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for an oven glove? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  35. 35.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) copper (d) glass
  36. 36.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) steel (d) rubber
  37. 37.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  38. 38.Which of these needs a waterproof material? (a) an umbrella cover (b) an oven glove (c) a cooking pot handle (d) a car seat belt
  39. 39.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.Which of these needs a heat insulator? (a) a raincoat (b) a tea flask lining (c) a car seat belt (d) a spectacle lens

Answer key

  1. True
  2. dry wood
  3. an insulator
  4. False
  5. waterproof
  6. flexible
  7. a spectacle lens
  8. rubber
  9. clay pottery
  10. glass
  11. a conductor
  12. a magnifier lens
  13. transparent
  14. steel
  15. an oven glove
  16. False
  17. waterproof
  18. flexible
  19. a conductor
  20. transparent
  21. iron
  22. a switch contact
  23. True
  24. True
  25. the core of a wire
  26. aluminium
  27. copper
  28. waterproof
  29. False
  30. False
  31. electrical conductor
  32. a conductor
  33. a conductor
  34. heat insulator
  35. copper
  36. steel
  37. wood or plastic
  38. an umbrella cover
  39. an insulator
  40. a tea flask lining

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