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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 457 · 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 aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  3. 3.True or false: a window pane needs a transparent material. (a) False (b) True
  4. 4.Which of these needs a heat insulator? (a) a raincoat (b) a cooking pot handle (c) an umbrella cover (d) a spectacle lens
  5. 5.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  6. 6.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  8. 8.True or false: a yoga mat needs a transparent material. (a) True (b) False
  9. 9.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  10. 10.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) clay pottery (d) plastic
  13. 13.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  14. 14.Which of these needs a waterproof material? (a) a switch contact (b) an oven glove (c) a water tank (d) a skipping rope
  15. 15.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) rubber (d) cotton cloth
  16. 16.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  17. 17.🧱 Which property matters most for a yoga mat? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  18. 18.🔍 Which is the odd one out? (a) aluminium (b) iron (c) graphite (d) dry wood
  19. 19.Which of these needs a waterproof material? (a) a window pane (b) a hair band (c) a switch contact (d) a roof sheet
  20. 20.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  21. 21.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  22. 22.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs a heat insulator? (a) a spectacle lens (b) a hair band (c) a raincoat (d) a tea flask lining
  24. 24.🔍 Which is the odd one out? (a) iron (b) aluminium (c) copper (d) cotton cloth
  25. 25.Which of these needs a waterproof material? (a) a hair band (b) a magnifier lens (c) an umbrella cover (d) a cooking pot handle
  26. 26.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  27. 27.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  29. 29.Which of these needs a flexible material? (a) a spectacle lens (b) a magnifier lens (c) a raincoat (d) a skipping rope
  30. 30.🔍 Which is the odd one out? (a) copper (b) brass (c) clay pottery (d) aluminium
  31. 31.Which of these needs a transparent material? (a) a yoga mat (b) a window pane (c) a boat hull (d) a plug pin
  32. 32.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  33. 33.Which of these needs a waterproof material? (a) a skipping rope (b) a car seat belt (c) a yoga mat (d) a raincoat
  34. 34.🧱 Which property matters most for a water tank? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  35. 35.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  36. 36.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  37. 37.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  38. 38.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  39. 39.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) glass (b) brass (c) aluminium (d) copper

Answer key

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

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