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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 888 · 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 is the odd one out? (a) iron (b) copper (c) dry wood (d) aluminium
  2. 2.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  3. 3.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  4. 4.True or false: a water tank needs a waterproof material. (a) True (b) False
  5. 5.Which of these needs a waterproof material? (a) a hair band (b) the core of a wire (c) a water tank (d) a cooking pot handle
  6. 6.🧱 Which property matters most for a magnifier lens? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  7. 7.🔍 Which is the odd one out? (a) dry wood (b) iron (c) glass (d) clay pottery
  8. 8.True or false: a yoga mat needs a flexible material. (a) False (b) True
  9. 9.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  10. 10.True or false: a window pane needs a heat insulator. (a) True (b) False
  11. 11.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  15. 15.Which of these needs an electrical conductor? (a) a window pane (b) a roof sheet (c) a cooking pot handle (d) a switch contact
  16. 16.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) iron (b) copper (c) plastic (d) steel
  18. 18.Which of these needs a heat insulator? (a) a roof sheet (b) a cooking pot handle (c) a boat hull (d) a window pane
  19. 19.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  20. 20.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  22. 22.True or false: a car seat belt needs a flexible material. (a) False (b) True
  23. 23.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  26. 26.Which of these needs an electrical conductor? (a) a car windscreen (b) a car seat belt (c) the core of a wire (d) a spectacle lens
  27. 27.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Which property matters most for a window pane? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  32. 32.Which of these needs a waterproof material? (a) a spectacle lens (b) a switch contact (c) a roof sheet (d) a skipping rope
  33. 33.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  34. 34.🧱 Which property matters most for a spectacle lens? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  35. 35.Which of these needs a heat insulator? (a) a yoga mat (b) a spectacle lens (c) a raincoat (d) an oven glove
  36. 36.True or false: a raincoat needs a flexible material. (a) True (b) False
  37. 37.Which of these needs a flexible material? (a) a switch contact (b) a skipping rope (c) a spectacle lens (d) a window pane
  38. 38.🔍 Which is the odd one out? (a) graphite (b) copper (c) aluminium (d) cotton cloth
  39. 39.Which of these needs a transparent material? (a) a skipping rope (b) a tea flask lining (c) the core of a wire (d) a window pane
  40. 40.True or false: a yoga mat needs an electrical conductor. (a) False (b) True

Answer key

  1. dry wood
  2. waterproof
  3. True
  4. True
  5. a water tank
  6. transparent
  7. iron
  8. True
  9. steel
  10. False
  11. glass
  12. a conductor
  13. a conductor
  14. copper
  15. a switch contact
  16. False
  17. plastic
  18. a cooking pot handle
  19. flexible
  20. an insulator
  21. waterproof
  22. True
  23. waterproof
  24. an insulator
  25. False
  26. the core of a wire
  27. True
  28. an insulator
  29. an insulator
  30. an insulator
  31. transparent
  32. a roof sheet
  33. flexible
  34. transparent
  35. an oven glove
  36. False
  37. a skipping rope
  38. cotton cloth
  39. a window pane
  40. False

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