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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 550 · 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 of these needs a transparent material? (a) a spectacle lens (b) a tea flask lining (c) the core of a wire (d) a car seat belt
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  4. 4.🔍 Which is the odd one out? (a) steel (b) dry wood (c) graphite (d) aluminium
  5. 5.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) copper (d) iron
  6. 6.🔍 Which is the odd one out? (a) steel (b) glass (c) iron (d) copper
  7. 7.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  8. 8.Which of these needs a heat insulator? (a) the core of a wire (b) an oven glove (c) a skipping rope (d) an umbrella cover
  9. 9.🔍 Which is the odd one out? (a) brass (b) plastic (c) graphite (d) iron
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🔍 Which is the odd one out? (a) plastic (b) iron (c) glass (d) clay pottery
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  14. 14.Which of these needs a heat insulator? (a) a boat hull (b) a skipping rope (c) an umbrella cover (d) a tea flask lining
  15. 15.🔍 Which is the odd one out? (a) glass (b) brass (c) cotton cloth (d) plastic
  16. 16.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.True or false: a skipping rope needs a flexible material. (a) False (b) True
  20. 20.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) plastic (d) cotton cloth
  22. 22.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  23. 23.🧱 Which property matters most for a raincoat? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  24. 24.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  25. 25.True or false: a car seat belt needs a flexible material. (a) False (b) True
  26. 26.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  27. 27.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  28. 28.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  29. 29.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  30. 30.Which of these needs a transparent material? (a) a roof sheet (b) a magnifier lens (c) a raincoat (d) a water tank
  31. 31.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  32. 32.True or false: an oven glove needs a heat insulator. (a) False (b) True
  33. 33.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs an electrical conductor? (a) a switch contact (b) a window pane (c) a cooking pot handle (d) a hair band
  35. 35.Which of these needs a transparent material? (a) an oven glove (b) a boat hull (c) a window pane (d) a cooking pot handle
  36. 36.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  37. 37.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  38. 38.True or false: a water tank needs a heat insulator. (a) False (b) True
  39. 39.True or false: a car seat belt needs a transparent material. (a) True (b) False
  40. 40.Which of these needs a flexible material? (a) the core of a wire (b) an umbrella cover (c) a spectacle lens (d) a car seat belt

Answer key

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

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