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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 248 · 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) graphite (b) aluminium (c) plastic (d) copper
  2. 2.🔍 Which is the odd one out? (a) graphite (b) glass (c) iron (d) copper
  3. 3.Which of these needs a waterproof material? (a) a roof sheet (b) a cooking pot handle (c) a car windscreen (d) a spectacle lens
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  6. 6.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  7. 7.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) graphite (d) glass
  9. 9.True or false: an oven glove needs a heat insulator. (a) False (b) True
  10. 10.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  11. 11.True or false: a window pane needs a waterproof material. (a) False (b) True
  12. 12.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  13. 13.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  14. 14.Which of these needs an electrical conductor? (a) a roof sheet (b) a spectacle lens (c) a yoga mat (d) the core of a wire
  15. 15.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  16. 16.🔍 Which is the odd one out? (a) steel (b) rubber (c) cotton cloth (d) plastic
  17. 17.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  18. 18.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  19. 19.Which of these needs an electrical conductor? (a) a raincoat (b) a water tank (c) a plug pin (d) a hair band
  20. 20.True or false: a window pane needs an electrical conductor. (a) True (b) False
  21. 21.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) brass (d) copper
  23. 23.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  25. 25.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  28. 28.True or false: a yoga mat needs a transparent material. (a) True (b) False
  29. 29.Which of these needs a transparent material? (a) a tea flask lining (b) a spectacle lens (c) an umbrella cover (d) a raincoat
  30. 30.True or false: a roof sheet needs a flexible material. (a) True (b) False
  31. 31.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  33. 33.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) iron (d) steel
  34. 34.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  35. 35.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  36. 36.Which of these needs a transparent material? (a) a yoga mat (b) an umbrella cover (c) a switch contact (d) a window pane
  37. 37.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  38. 38.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  39. 39.Which of these needs a heat insulator? (a) a car seat belt (b) a plug pin (c) an umbrella cover (d) an oven glove
  40. 40.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) aluminium (d) copper

Answer key

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

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