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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 593 · 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.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) glass (d) iron
  4. 4.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  5. 5.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  6. 6.🔍 Which is the odd one out? (a) steel (b) rubber (c) copper (d) aluminium
  7. 7.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  9. 9.True or false: a plug pin needs a waterproof material. (a) True (b) False
  10. 10.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) graphite (d) brass
  11. 11.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: a car windscreen needs a transparent material. (a) False (b) True
  13. 13.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs a flexible material? (a) a window pane (b) a raincoat (c) a cooking pot handle (d) a yoga mat
  16. 16.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  17. 17.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  18. 18.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  19. 19.Which of these needs a waterproof material? (a) a tea flask lining (b) a magnifier lens (c) a skipping rope (d) a water tank
  20. 20.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a heat insulator? (a) a plug pin (b) a spectacle lens (c) a cooking pot handle (d) a yoga mat
  22. 22.🔍 Which is the odd one out? (a) copper (b) iron (c) brass (d) clay pottery
  23. 23.Which of these needs a flexible material? (a) a skipping rope (b) a plug pin (c) a tea flask lining (d) an oven glove
  24. 24.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  25. 25.🧱 Which property matters most for an oven glove? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  26. 26.Which of these needs a transparent material? (a) the core of a wire (b) a switch contact (c) an umbrella cover (d) a magnifier lens
  27. 27.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: a raincoat needs a waterproof material. (a) True (b) False
  29. 29.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  30. 30.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  31. 31.Which of these needs a waterproof material? (a) a yoga mat (b) a car windscreen (c) an oven glove (d) a raincoat
  32. 32.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  33. 33.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  34. 34.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  35. 35.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  36. 36.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) copper (d) dry wood
  37. 37.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  38. 38.🔍 Which is the odd one out? (a) steel (b) aluminium (c) dry wood (d) graphite
  39. 39.Which of these needs a heat insulator? (a) a skipping rope (b) a raincoat (c) an oven glove (d) a hair band
  40. 40.Which of these needs a transparent material? (a) a plug pin (b) a raincoat (c) a hair band (d) a window pane

Answer key

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

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