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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 114 · 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.True or false: a water tank needs a waterproof material. (a) False (b) True
  2. 2.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  3. 3.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  4. 4.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.Which of these needs a flexible material? (a) a window pane (b) a switch contact (c) a tea flask lining (d) a skipping rope
  6. 6.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  7. 7.True or false: a raincoat needs a transparent material. (a) True (b) False
  8. 8.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  9. 9.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  10. 10.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) plastic (d) brass
  12. 12.Which of these needs a flexible material? (a) a tea flask lining (b) a plug pin (c) a boat hull (d) a hair band
  13. 13.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) brass (d) iron
  14. 14.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  15. 15.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  16. 16.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  18. 18.Which of these needs a heat insulator? (a) a plug pin (b) a cooking pot handle (c) a skipping rope (d) an umbrella cover
  19. 19.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  20. 20.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  23. 23.🔍 Which is the odd one out? (a) aluminium (b) iron (c) rubber (d) steel
  24. 24.🔍 Which is the odd one out? (a) glass (b) dry wood (c) aluminium (d) plastic
  25. 25.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  26. 26.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  28. 28.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  29. 29.Which of these needs a heat insulator? (a) a tea flask lining (b) a switch contact (c) an umbrella cover (d) a hair band
  30. 30.Which of these needs a waterproof material? (a) a plug pin (b) a water tank (c) a hair band (d) a switch contact
  31. 31.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  32. 32.True or false: a car seat belt needs a flexible material. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) copper (d) brass
  34. 34.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  36. 36.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  37. 37.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) dry wood (d) clay pottery
  39. 39.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  40. 40.True or false: a skipping rope needs an electrical conductor. (a) False (b) True

Answer key

  1. True
  2. electrical conductor
  3. heat insulator
  4. a conductor
  5. a skipping rope
  6. False
  7. False
  8. heat insulator
  9. flexible
  10. True
  11. brass
  12. a hair band
  13. clay pottery
  14. plastic-coated cloth
  15. electrical conductor
  16. an insulator
  17. waterproof
  18. a cooking pot handle
  19. waterproof
  20. an insulator
  21. an insulator
  22. copper
  23. rubber
  24. aluminium
  25. True
  26. a conductor
  27. steel
  28. flexible
  29. a tea flask lining
  30. a water tank
  31. True
  32. True
  33. cotton cloth
  34. a conductor
  35. True
  36. waterproof
  37. a conductor
  38. copper
  39. wood or plastic
  40. False

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