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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 729 · 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) aluminium (b) clay pottery (c) cotton cloth (d) plastic
  2. 2.🔍 Which is the odd one out? (a) iron (b) steel (c) clay pottery (d) copper
  3. 3.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) copper (c) steel (d) cotton cloth
  5. 5.Which of these needs a waterproof material? (a) a cooking pot handle (b) the core of a wire (c) a skipping rope (d) a boat hull
  6. 6.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  7. 7.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  8. 8.True or false: a raincoat needs a flexible material. (a) True (b) False
  9. 9.Which of these needs an electrical conductor? (a) a car seat belt (b) the core of a wire (c) a cooking pot handle (d) a tea flask lining
  10. 10.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  11. 11.🔍 Which is the odd one out? (a) copper (b) steel (c) aluminium (d) glass
  12. 12.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.Which of these needs a waterproof material? (a) a raincoat (b) a tea flask lining (c) a spectacle lens (d) a skipping rope
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  16. 16.Which of these needs an electrical conductor? (a) a raincoat (b) a car windscreen (c) a plug pin (d) a hair band
  17. 17.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  18. 18.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  19. 19.Which of these needs a flexible material? (a) a yoga mat (b) an oven glove (c) an umbrella cover (d) a car windscreen
  20. 20.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  21. 21.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.Which of these needs a transparent material? (a) a cooking pot handle (b) a car seat belt (c) a window pane (d) a roof sheet
  23. 23.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  25. 25.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  26. 26.True or false: a hair band needs a flexible material. (a) False (b) True
  27. 27.Which of these needs a heat insulator? (a) a car seat belt (b) a yoga mat (c) a magnifier lens (d) a cooking pot handle
  28. 28.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) graphite (d) glass
  29. 29.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  31. 31.🔍 Which is the odd one out? (a) steel (b) aluminium (c) iron (d) plastic
  32. 32.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  33. 33.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  34. 34.🧱 Which property matters most for a yoga mat? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  35. 35.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.True or false: a boat hull needs a waterproof material. (a) False (b) True
  37. 37.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  39. 39.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium

Answer key

  1. aluminium
  2. clay pottery
  3. electrical conductor
  4. cotton cloth
  5. a boat hull
  6. glass
  7. steel
  8. False
  9. the core of a wire
  10. electrical conductor
  11. glass
  12. a conductor
  13. a raincoat
  14. a conductor
  15. False
  16. a plug pin
  17. plastic-coated cloth
  18. waterproof
  19. a yoga mat
  20. copper
  21. a conductor
  22. a window pane
  23. an insulator
  24. waterproof
  25. transparent
  26. True
  27. a cooking pot handle
  28. graphite
  29. a conductor
  30. False
  31. plastic
  32. transparent
  33. waterproof
  34. flexible
  35. an insulator
  36. True
  37. an insulator
  38. False
  39. a conductor
  40. wood or plastic

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