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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 397 · 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 window pane? (a) brick (b) glass (c) steel (d) wood
  2. 2.True or false: a window pane needs a transparent material. (a) True (b) False
  3. 3.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  4. 4.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  5. 5.Which of these needs an electrical conductor? (a) a switch contact (b) a spectacle lens (c) a cooking pot handle (d) a magnifier lens
  6. 6.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  7. 7.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  8. 8.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) dry wood (d) clay pottery
  9. 9.True or false: a car windscreen needs a transparent material. (a) False (b) True
  10. 10.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) clay pottery (d) rubber
  11. 11.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.True or false: a boat hull needs a heat insulator. (a) False (b) True
  13. 13.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  14. 14.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  15. 15.True or false: a raincoat needs a waterproof material. (a) True (b) False
  16. 16.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  17. 17.Which of these needs a transparent material? (a) an umbrella cover (b) a boat hull (c) a window pane (d) a skipping rope
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  20. 20.Which of these needs a heat insulator? (a) a spectacle lens (b) a magnifier lens (c) a cooking pot handle (d) a boat hull
  21. 21.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  22. 22.🔍 Which is the odd one out? (a) iron (b) aluminium (c) glass (d) graphite
  23. 23.True or false: a yoga mat needs a flexible material. (a) False (b) True
  24. 24.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) copper (b) aluminium (c) plastic (d) graphite
  27. 27.True or false: a water tank needs a transparent material. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) steel (b) aluminium (c) copper (d) rubber
  29. 29.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  30. 30.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  31. 31.🔍 Which is the odd one out? (a) dry wood (b) steel (c) plastic (d) rubber
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  34. 34.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  35. 35.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.True or false: a plug pin needs a transparent material. (a) False (b) True
  37. 37.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  40. 40.Which of these needs a flexible material? (a) the core of a wire (b) a boat hull (c) a tea flask lining (d) a yoga mat

Answer key

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

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