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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 221 · 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 transparent material? (a) a tea flask lining (b) an oven glove (c) a roof sheet (d) a spectacle lens
  2. 2.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  4. 4.Which of these needs a heat insulator? (a) an umbrella cover (b) a skipping rope (c) an oven glove (d) a roof sheet
  5. 5.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  6. 6.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  7. 7.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  8. 8.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  12. 12.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.Which of these needs a waterproof material? (a) a skipping rope (b) an umbrella cover (c) an oven glove (d) a spectacle lens
  15. 15.🔍 Which is the odd one out? (a) rubber (b) iron (c) copper (d) aluminium
  16. 16.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  17. 17.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  18. 18.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) rubber (d) brass
  19. 19.True or false: a plug pin needs a transparent material. (a) True (b) False
  20. 20.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  21. 21.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  22. 22.Which of these needs a heat insulator? (a) a hair band (b) a raincoat (c) a skipping rope (d) a tea flask lining
  23. 23.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  24. 24.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these needs a heat insulator? (a) an umbrella cover (b) a cooking pot handle (c) a spectacle lens (d) a car seat belt
  26. 26.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.Which of these needs a waterproof material? (a) a boat hull (b) a skipping rope (c) a tea flask lining (d) a switch contact
  28. 28.🔍 Which is the odd one out? (a) dry wood (b) copper (c) iron (d) aluminium
  29. 29.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  30. 30.🔍 Which is the odd one out? (a) glass (b) rubber (c) clay pottery (d) aluminium
  31. 31.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  32. 32.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  34. 34.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  35. 35.🔍 Which is the odd one out? (a) iron (b) graphite (c) brass (d) clay pottery
  36. 36.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  37. 37.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  38. 38.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  39. 39.True or false: a car seat belt needs a transparent material. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) graphite (b) glass (c) clay pottery (d) rubber

Answer key

  1. a spectacle lens
  2. an insulator
  3. transparent
  4. an oven glove
  5. True
  6. flexible
  7. False
  8. a conductor
  9. a conductor
  10. an insulator
  11. copper
  12. glass
  13. a conductor
  14. an umbrella cover
  15. rubber
  16. waterproof
  17. flexible
  18. brass
  19. False
  20. electrical conductor
  21. plastic-coated cloth
  22. a tea flask lining
  23. flexible
  24. an insulator
  25. a cooking pot handle
  26. a conductor
  27. a boat hull
  28. dry wood
  29. heat insulator
  30. aluminium
  31. heat insulator
  32. an insulator
  33. wood or plastic
  34. transparent
  35. clay pottery
  36. waterproof
  37. False
  38. electrical conductor
  39. False
  40. graphite

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