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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 557 · 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 a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  2. 2.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  3. 3.True or false: a car seat belt needs a flexible material. (a) True (b) False
  4. 4.True or false: an oven glove needs a flexible material. (a) True (b) False
  5. 5.Which of these needs an electrical conductor? (a) a boat hull (b) a switch contact (c) a car seat belt (d) a car windscreen
  6. 6.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) graphite (d) iron
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  10. 10.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  11. 11.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  12. 12.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  13. 13.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) steel (d) cotton cloth
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  17. 17.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) copper (d) iron
  19. 19.Which of these needs a flexible material? (a) a roof sheet (b) a hair band (c) an umbrella cover (d) a raincoat
  20. 20.Which of these needs a flexible material? (a) a yoga mat (b) a spectacle lens (c) a tea flask lining (d) a raincoat
  21. 21.🔍 Which is the odd one out? (a) dry wood (b) copper (c) plastic (d) clay pottery
  22. 22.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  23. 23.🔍 Which is the odd one out? (a) brass (b) rubber (c) cotton cloth (d) clay pottery
  24. 24.Which of these needs a transparent material? (a) an oven glove (b) a hair band (c) a car windscreen (d) a cooking pot handle
  25. 25.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  26. 26.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  27. 27.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  28. 28.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  29. 29.True or false: an oven glove needs a heat insulator. (a) False (b) True
  30. 30.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  31. 31.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  32. 32.Which of these needs a heat insulator? (a) a magnifier lens (b) a cooking pot handle (c) the core of a wire (d) a yoga mat
  33. 33.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  35. 35.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  36. 36.Which of these needs a waterproof material? (a) a car windscreen (b) a car seat belt (c) a boat hull (d) a magnifier lens
  37. 37.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a roof sheet needs a flexible material. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) steel (d) brass

Answer key

  1. wood or plastic
  2. steel
  3. True
  4. False
  5. a switch contact
  6. an insulator
  7. clay pottery
  8. an insulator
  9. waterproof
  10. plastic-coated cloth
  11. heat insulator
  12. flexible
  13. steel
  14. a conductor
  15. a conductor
  16. waterproof
  17. a conductor
  18. rubber
  19. a hair band
  20. a yoga mat
  21. copper
  22. electrical conductor
  23. brass
  24. a car windscreen
  25. copper
  26. glass
  27. flexible
  28. True
  29. True
  30. False
  31. transparent
  32. a cooking pot handle
  33. a conductor
  34. electrical conductor
  35. transparent
  36. a boat hull
  37. an insulator
  38. an insulator
  39. False
  40. dry wood

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