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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 747 · 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 iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) cotton cloth (d) glass
  3. 3.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) glass (b) graphite (c) aluminium (d) steel
  5. 5.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  6. 6.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  7. 7.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  10. 10.🔍 Which is the odd one out? (a) steel (b) iron (c) graphite (d) plastic
  11. 11.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which property matters most for a magnifier lens? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  14. 14.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  15. 15.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  16. 16.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  17. 17.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  18. 18.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  20. 20.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  21. 21.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  22. 22.Which of these needs a waterproof material? (a) a car seat belt (b) a yoga mat (c) a spectacle lens (d) a water tank
  23. 23.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) plastic (d) rubber
  24. 24.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.Which of these needs a flexible material? (a) a yoga mat (b) a roof sheet (c) a spectacle lens (d) an oven glove
  26. 26.True or false: an oven glove needs a heat insulator. (a) False (b) True
  27. 27.True or false: a car windscreen needs a transparent material. (a) True (b) False
  28. 28.Which of these needs a transparent material? (a) a cooking pot handle (b) a raincoat (c) a water tank (d) a car windscreen
  29. 29.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: a water tank needs a waterproof material. (a) True (b) False
  32. 32.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  33. 33.Which of these needs an electrical conductor? (a) the core of a wire (b) a raincoat (c) a magnifier lens (d) an umbrella cover
  34. 34.🔍 Which is the odd one out? (a) copper (b) iron (c) brass (d) dry wood
  35. 35.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  36. 36.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  37. 37.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  38. 38.True or false: a car seat belt needs a flexible material. (a) True (b) False
  39. 39.Which of these needs a heat insulator? (a) a window pane (b) a spectacle lens (c) a roof sheet (d) an oven glove
  40. 40.True or false: a roof sheet needs a waterproof material. (a) False (b) True

Answer key

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

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