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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 896 · 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) an insulator (b) a conductor
  2. 2.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  3. 3.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  6. 6.True or false: a raincoat needs a flexible material. (a) True (b) False
  7. 7.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  9. 9.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) aluminium (d) copper
  10. 10.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  11. 11.🔍 Which is the odd one out? (a) steel (b) glass (c) iron (d) brass
  12. 12.True or false: a raincoat needs a heat insulator. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) copper (b) plastic (c) brass (d) graphite
  14. 14.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  15. 15.True or false: a skipping rope needs a transparent material. (a) True (b) False
  16. 16.Which of these needs a transparent material? (a) an umbrella cover (b) an oven glove (c) a car windscreen (d) the core of a wire
  17. 17.Which of these needs an electrical conductor? (a) a spectacle lens (b) a skipping rope (c) a plug pin (d) a window pane
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs a transparent material? (a) a skipping rope (b) a spectacle lens (c) a water tank (d) a roof sheet
  20. 20.Which of these needs a waterproof material? (a) a spectacle lens (b) a car windscreen (c) a window pane (d) a boat hull
  21. 21.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  22. 22.Which of these needs a waterproof material? (a) a cooking pot handle (b) a magnifier lens (c) a window pane (d) a roof sheet
  23. 23.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  24. 24.Which of these needs a heat insulator? (a) a switch contact (b) a tea flask lining (c) an umbrella cover (d) a magnifier lens
  25. 25.🔍 Which is the odd one out? (a) rubber (b) steel (c) plastic (d) dry wood
  26. 26.Which of these needs a waterproof material? (a) a plug pin (b) a switch contact (c) a car windscreen (d) an umbrella cover
  27. 27.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  28. 28.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  29. 29.Which of these needs an electrical conductor? (a) the core of a wire (b) a yoga mat (c) a magnifier lens (d) a raincoat
  30. 30.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  31. 31.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  32. 32.🧱 Which property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  33. 33.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  34. 34.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) glass (d) dry wood
  35. 35.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) copper (b) rubber (c) graphite (d) aluminium
  37. 37.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.True or false: a car seat belt needs a flexible material. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) copper (b) brass (c) dry wood (d) iron
  40. 40.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) graphite (d) dry wood

Answer key

  1. an insulator
  2. steel
  3. waterproof
  4. a conductor
  5. wood or plastic
  6. False
  7. an insulator
  8. waterproof
  9. cotton cloth
  10. flexible
  11. glass
  12. False
  13. plastic
  14. glass
  15. False
  16. a car windscreen
  17. a plug pin
  18. a conductor
  19. a spectacle lens
  20. a boat hull
  21. flexible
  22. a roof sheet
  23. waterproof
  24. a tea flask lining
  25. steel
  26. an umbrella cover
  27. heat insulator
  28. True
  29. the core of a wire
  30. electrical conductor
  31. flexible
  32. flexible
  33. copper
  34. iron
  35. True
  36. rubber
  37. a conductor
  38. True
  39. dry wood
  40. graphite

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