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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 811 · 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 of these needs a flexible material? (a) a plug pin (b) an umbrella cover (c) a switch contact (d) a hair band
  2. 2.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  3. 3.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  4. 4.True or false: an oven glove needs a heat insulator. (a) True (b) False
  5. 5.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which property matters most for a switch contact? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  8. 8.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  9. 9.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.Which of these needs a heat insulator? (a) a raincoat (b) a hair band (c) a magnifier lens (d) a cooking pot handle
  12. 12.Which of these needs a waterproof material? (a) an oven glove (b) a boat hull (c) a skipping rope (d) a magnifier lens
  13. 13.🧱 Which property matters most for a spectacle lens? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  14. 14.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  18. 18.True or false: a yoga mat needs a transparent material. (a) False (b) True
  19. 19.Which of these needs a waterproof material? (a) a tea flask lining (b) a raincoat (c) a car windscreen (d) a yoga mat
  20. 20.Which of these needs an electrical conductor? (a) a magnifier lens (b) a cooking pot handle (c) a switch contact (d) a water tank
  21. 21.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  22. 22.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🔍 Which is the odd one out? (a) plastic (b) steel (c) graphite (d) copper
  24. 24.🔍 Which is the odd one out? (a) copper (b) steel (c) aluminium (d) cotton cloth
  25. 25.🔍 Which is the odd one out? (a) iron (b) copper (c) aluminium (d) glass
  26. 26.Which of these needs a flexible material? (a) a raincoat (b) a car seat belt (c) a spectacle lens (d) a cooking pot handle
  27. 27.Which of these needs a transparent material? (a) a cooking pot handle (b) a hair band (c) a water tank (d) a window pane
  28. 28.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.Which of these needs a heat insulator? (a) a tea flask lining (b) a boat hull (c) a hair band (d) a yoga mat
  30. 30.🧱 Which property matters most for a car windscreen? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  31. 31.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) copper (d) graphite
  33. 33.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  34. 34.🔍 Which is the odd one out? (a) glass (b) brass (c) dry wood (d) rubber
  35. 35.🔍 Which is the odd one out? (a) dry wood (b) iron (c) steel (d) graphite
  36. 36.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) graphite (d) clay pottery
  38. 38.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) plastic (d) rubber
  39. 39.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.Which of these needs a transparent material? (a) a hair band (b) a yoga mat (c) a magnifier lens (d) a raincoat

Answer key

  1. a hair band
  2. electrical conductor
  3. glass
  4. True
  5. a conductor
  6. a conductor
  7. electrical conductor
  8. False
  9. plastic-coated cloth
  10. a conductor
  11. a cooking pot handle
  12. a boat hull
  13. transparent
  14. a conductor
  15. copper
  16. a conductor
  17. waterproof
  18. False
  19. a raincoat
  20. a switch contact
  21. steel
  22. a conductor
  23. plastic
  24. cotton cloth
  25. glass
  26. a car seat belt
  27. a window pane
  28. an insulator
  29. a tea flask lining
  30. transparent
  31. an insulator
  32. rubber
  33. waterproof
  34. brass
  35. dry wood
  36. False
  37. graphite
  38. aluminium
  39. an insulator
  40. a magnifier lens

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