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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 289 · 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 material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  2. 2.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  3. 3.Which of these needs a heat insulator? (a) an oven glove (b) a yoga mat (c) a car windscreen (d) a roof sheet
  4. 4.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  5. 5.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  8. 8.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  9. 9.Which of these needs an electrical conductor? (a) a boat hull (b) a window pane (c) a switch contact (d) a car seat belt
  10. 10.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  11. 11.Which of these needs a waterproof material? (a) a spectacle lens (b) a roof sheet (c) a tea flask lining (d) a cooking pot handle
  12. 12.True or false: a plug pin needs a heat insulator. (a) False (b) True
  13. 13.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  14. 14.True or false: a water tank needs a waterproof material. (a) False (b) True
  15. 15.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  16. 16.Which of these needs a flexible material? (a) a skipping rope (b) a roof sheet (c) a car windscreen (d) the core of a wire
  17. 17.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs a heat insulator? (a) a spectacle lens (b) a cooking pot handle (c) the core of a wire (d) a magnifier lens
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) iron (d) plastic
  21. 21.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) brass (d) plastic
  22. 22.🔍 Which is the odd one out? (a) dry wood (b) glass (c) copper (d) plastic
  23. 23.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.True or false: a raincoat needs a waterproof material. (a) True (b) False
  25. 25.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  26. 26.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  27. 27.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  29. 29.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.Which of these needs an electrical conductor? (a) a boat hull (b) a raincoat (c) a cooking pot handle (d) the core of a wire
  31. 31.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  32. 32.Which of these needs a flexible material? (a) a window pane (b) a spectacle lens (c) a yoga mat (d) a switch contact
  33. 33.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  34. 34.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  35. 35.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) glass (d) cotton cloth
  36. 36.True or false: a roof sheet needs a transparent material. (a) False (b) True
  37. 37.🧱 Which property matters most for a car windscreen? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  38. 38.True or false: a car seat belt needs a flexible material. (a) True (b) False
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🔍 Which is the odd one out? (a) glass (b) plastic (c) rubber (d) graphite

Answer key

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

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