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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 620 · 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 rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  3. 3.🔍 Which is the odd one out? (a) rubber (b) brass (c) glass (d) dry wood
  4. 4.Which of these needs a heat insulator? (a) a switch contact (b) a boat hull (c) a tea flask lining (d) the core of a wire
  5. 5.True or false: a water tank needs an electrical conductor. (a) False (b) True
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.Which of these needs a flexible material? (a) a skipping rope (b) a raincoat (c) a roof sheet (d) a car windscreen
  8. 8.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  11. 11.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) dry wood (b) copper (c) steel (d) graphite
  13. 13.🔍 Which is the odd one out? (a) plastic (b) copper (c) aluminium (d) steel
  14. 14.Which of these needs an electrical conductor? (a) a car windscreen (b) a plug pin (c) an umbrella cover (d) a boat hull
  15. 15.True or false: the core of a wire needs a transparent material. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) graphite (b) steel (c) iron (d) cotton cloth
  17. 17.🔍 Which is the odd one out? (a) rubber (b) glass (c) steel (d) clay pottery
  18. 18.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  19. 19.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  20. 20.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  21. 21.🧱 Which property matters most for a water tank? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  22. 22.True or false: an oven glove needs a waterproof material. (a) False (b) True
  23. 23.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  24. 24.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  25. 25.Which of these needs a transparent material? (a) a boat hull (b) a plug pin (c) an umbrella cover (d) a window pane
  26. 26.True or false: a skipping rope needs a flexible material. (a) False (b) True
  27. 27.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  28. 28.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.True or false: a plug pin needs a flexible material. (a) True (b) False
  30. 30.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  31. 31.Which of these needs an electrical conductor? (a) a magnifier lens (b) an umbrella cover (c) a spectacle lens (d) the core of a wire
  32. 32.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  33. 33.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  34. 34.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a raincoat needs a waterproof material. (a) False (b) True
  36. 36.True or false: a raincoat needs a heat insulator. (a) True (b) False
  37. 37.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  38. 38.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: a spectacle lens needs a heat insulator. (a) False (b) True

Answer key

  1. an insulator
  2. False
  3. brass
  4. a tea flask lining
  5. False
  6. an insulator
  7. a skipping rope
  8. flexible
  9. a conductor
  10. transparent
  11. True
  12. dry wood
  13. plastic
  14. a plug pin
  15. False
  16. cotton cloth
  17. steel
  18. False
  19. waterproof
  20. copper
  21. waterproof
  22. False
  23. waterproof
  24. transparent
  25. a window pane
  26. True
  27. True
  28. a conductor
  29. False
  30. heat insulator
  31. the core of a wire
  32. glass
  33. electrical conductor
  34. an insulator
  35. True
  36. False
  37. electrical conductor
  38. waterproof
  39. an insulator
  40. False

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