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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 345 · 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 is the odd one out? (a) aluminium (b) glass (c) steel (d) iron
  2. 2.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  3. 3.True or false: a plug pin needs a waterproof material. (a) True (b) False
  4. 4.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  5. 5.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  6. 6.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  7. 7.True or false: a hair band needs a heat insulator. (a) False (b) True
  8. 8.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  9. 9.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a flexible material? (a) a raincoat (b) a switch contact (c) a yoga mat (d) a spectacle lens
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) iron (d) clay pottery
  12. 12.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  13. 13.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  14. 14.Which of these needs a flexible material? (a) a switch contact (b) a hair band (c) a boat hull (d) a water tank
  15. 15.True or false: a car seat belt needs a flexible material. (a) True (b) False
  16. 16.Which of these needs a heat insulator? (a) a cooking pot handle (b) a hair band (c) a skipping rope (d) a magnifier lens
  17. 17.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for the core of a wire? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  19. 19.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  21. 21.Which of these needs an electrical conductor? (a) a yoga mat (b) a hair band (c) a switch contact (d) an umbrella cover
  22. 22.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  23. 23.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  24. 24.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  25. 25.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  26. 26.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  27. 27.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  28. 28.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  29. 29.True or false: a roof sheet needs a flexible material. (a) True (b) False
  30. 30.Which of these needs a transparent material? (a) a water tank (b) the core of a wire (c) a magnifier lens (d) a tea flask lining
  31. 31.🔍 Which is the odd one out? (a) steel (b) plastic (c) iron (d) brass
  32. 32.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) graphite (d) steel
  33. 33.🔍 Which is the odd one out? (a) brass (b) rubber (c) graphite (d) iron
  34. 34.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  35. 35.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  36. 36.True or false: a window pane needs a transparent material. (a) True (b) False
  37. 37.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) graphite (b) steel (c) clay pottery (d) brass
  39. 39.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  40. 40.Which of these needs a waterproof material? (a) a hair band (b) a switch contact (c) a yoga mat (d) a boat hull

Answer key

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

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