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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 755 · 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 cooking pot handle needs a heat insulator. (a) True (b) False
  2. 2.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  3. 3.Which of these needs a flexible material? (a) the core of a wire (b) a yoga mat (c) a tea flask lining (d) a roof sheet
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) brass (d) iron
  5. 5.🧱 Which property matters most for a switch contact? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  6. 6.Which of these needs an electrical conductor? (a) a tea flask lining (b) a skipping rope (c) a yoga mat (d) a plug pin
  7. 7.Which of these needs a waterproof material? (a) a cooking pot handle (b) a car seat belt (c) an umbrella cover (d) a spectacle lens
  8. 8.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  9. 9.Which of these needs a waterproof material? (a) a hair band (b) a tea flask lining (c) a car seat belt (d) a roof sheet
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  12. 12.🔍 Which is the odd one out? (a) glass (b) aluminium (c) rubber (d) plastic
  13. 13.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  14. 14.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  15. 15.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  16. 16.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  17. 17.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) plastic (d) glass
  18. 18.🔍 Which is the odd one out? (a) steel (b) graphite (c) aluminium (d) rubber
  19. 19.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  20. 20.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🔍 Which is the odd one out? (a) iron (b) glass (c) aluminium (d) steel
  22. 22.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  23. 23.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  25. 25.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  26. 26.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  27. 27.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  29. 29.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  30. 30.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  31. 31.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  33. 33.Which of these needs a transparent material? (a) a tea flask lining (b) a switch contact (c) a spectacle lens (d) a cooking pot handle
  34. 34.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) steel (d) clay pottery
  35. 35.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) brass (d) rubber
  36. 36.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  37. 37.Which of these needs a flexible material? (a) an umbrella cover (b) a raincoat (c) a car seat belt (d) a car windscreen
  38. 38.Which of these needs an electrical conductor? (a) an umbrella cover (b) a water tank (c) a cooking pot handle (d) the core of a wire
  39. 39.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass

Answer key

  1. True
  2. flexible
  3. a yoga mat
  4. cotton cloth
  5. electrical conductor
  6. a plug pin
  7. an umbrella cover
  8. electrical conductor
  9. a roof sheet
  10. a conductor
  11. transparent
  12. aluminium
  13. glass
  14. plastic-coated cloth
  15. False
  16. wood or plastic
  17. copper
  18. rubber
  19. False
  20. a conductor
  21. glass
  22. waterproof
  23. an insulator
  24. False
  25. True
  26. False
  27. an insulator
  28. True
  29. waterproof
  30. waterproof
  31. a conductor
  32. True
  33. a spectacle lens
  34. steel
  35. brass
  36. flexible
  37. a car seat belt
  38. the core of a wire
  39. a conductor
  40. copper

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