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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 202 · 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 brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs a flexible material? (a) a window pane (b) a switch contact (c) the core of a wire (d) a hair band
  3. 3.🔍 Which is the odd one out? (a) brass (b) graphite (c) steel (d) dry wood
  4. 4.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  5. 5.Which of these needs a waterproof material? (a) a water tank (b) a window pane (c) an oven glove (d) a car windscreen
  6. 6.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a car windscreen needs a flexible material. (a) True (b) False
  8. 8.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a skipping rope? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  10. 10.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  11. 11.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  12. 12.Which of these needs an electrical conductor? (a) a car seat belt (b) a switch contact (c) a window pane (d) a boat hull
  13. 13.Which of these needs a waterproof material? (a) a hair band (b) a car windscreen (c) a plug pin (d) a raincoat
  14. 14.Which of these needs a heat insulator? (a) an oven glove (b) a car seat belt (c) a plug pin (d) a boat hull
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) copper (c) clay pottery (d) brass
  16. 16.Which of these needs a heat insulator? (a) a spectacle lens (b) a tea flask lining (c) the core of a wire (d) a raincoat
  17. 17.Which of these needs an electrical conductor? (a) a hair band (b) an umbrella cover (c) a raincoat (d) the core of a wire
  18. 18.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  19. 19.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) aluminium (d) iron
  20. 20.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  21. 21.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.True or false: a yoga mat needs a flexible material. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) steel (b) copper (c) cotton cloth (d) graphite
  24. 24.🔍 Which is the odd one out? (a) graphite (b) brass (c) glass (d) steel
  25. 25.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  26. 26.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) cotton cloth (d) graphite
  27. 27.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.Which of these needs a transparent material? (a) a skipping rope (b) a tea flask lining (c) an umbrella cover (d) a spectacle lens
  29. 29.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) copper (d) rubber
  30. 30.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  31. 31.Which of these needs a transparent material? (a) an oven glove (b) a tea flask lining (c) a car windscreen (d) a switch contact
  32. 32.True or false: a car seat belt needs a transparent material. (a) True (b) False
  33. 33.True or false: a water tank needs a waterproof material. (a) False (b) True
  34. 34.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  35. 35.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  36. 36.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  38. 38.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  39. 39.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  40. 40.True or false: a water tank needs a flexible material. (a) True (b) False

Answer key

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

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