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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 194 · 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) cotton cloth (b) rubber (c) brass (d) clay pottery
  2. 2.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  3. 3.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  4. 4.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  5. 5.Which of these needs an electrical conductor? (a) a raincoat (b) a cooking pot handle (c) a car seat belt (d) a switch contact
  6. 6.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.True or false: a car seat belt needs a transparent material. (a) False (b) True
  9. 9.Which of these needs a flexible material? (a) a hair band (b) a spectacle lens (c) a switch contact (d) the core of a wire
  10. 10.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  11. 11.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.Which of these needs an electrical conductor? (a) an oven glove (b) a yoga mat (c) a plug pin (d) a raincoat
  13. 13.Which of these needs a flexible material? (a) an umbrella cover (b) the core of a wire (c) a roof sheet (d) a skipping rope
  14. 14.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  15. 15.Which of these needs an electrical conductor? (a) a car seat belt (b) the core of a wire (c) a raincoat (d) a tea flask lining
  16. 16.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  17. 17.Which of these needs a flexible material? (a) an umbrella cover (b) a yoga mat (c) a tea flask lining (d) a magnifier lens
  18. 18.Which of these needs a waterproof material? (a) a roof sheet (b) a spectacle lens (c) a switch contact (d) an oven glove
  19. 19.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  20. 20.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  21. 21.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  22. 22.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) plastic (b) glass (c) rubber (d) copper
  24. 24.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) plastic (d) copper
  25. 25.🔍 Which is the odd one out? (a) iron (b) aluminium (c) glass (d) graphite
  26. 26.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  27. 27.Which of these needs a transparent material? (a) a plug pin (b) a raincoat (c) a cooking pot handle (d) a spectacle lens
  28. 28.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  29. 29.🔍 Which is the odd one out? (a) copper (b) aluminium (c) rubber (d) iron
  30. 30.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  31. 31.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  32. 32.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) brass (d) steel
  33. 33.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) aluminium (d) glass
  34. 34.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  37. 37.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  38. 38.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  39. 39.Which of these needs a waterproof material? (a) an umbrella cover (b) a cooking pot handle (c) a magnifier lens (d) a car seat belt
  40. 40.🔍 Which is the odd one out? (a) brass (b) aluminium (c) cotton cloth (d) copper

Answer key

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

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