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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 63 · 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 property matters most for a spectacle lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  2. 2.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  3. 3.Which of these needs a waterproof material? (a) a yoga mat (b) an oven glove (c) a tea flask lining (d) a water tank
  4. 4.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  5. 5.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  6. 6.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  8. 8.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  10. 10.Which of these needs a flexible material? (a) a car windscreen (b) a switch contact (c) a hair band (d) a boat hull
  11. 11.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) iron (d) aluminium
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.True or false: a hair band needs a flexible material. (a) True (b) False
  15. 15.🧱 Which property matters most for a car windscreen? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  16. 16.🔍 Which is the odd one out? (a) iron (b) steel (c) rubber (d) copper
  17. 17.🔍 Which is the odd one out? (a) copper (b) steel (c) graphite (d) clay pottery
  18. 18.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  19. 19.Which of these needs a waterproof material? (a) a spectacle lens (b) a cooking pot handle (c) a roof sheet (d) a magnifier lens
  20. 20.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  21. 21.Which of these needs an electrical conductor? (a) a switch contact (b) a roof sheet (c) an oven glove (d) a yoga mat
  22. 22.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🔍 Which is the odd one out? (a) aluminium (b) copper (c) graphite (d) plastic
  24. 24.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  25. 25.Which of these needs an electrical conductor? (a) a skipping rope (b) a magnifier lens (c) the core of a wire (d) a car seat belt
  26. 26.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  27. 27.Which of these needs a transparent material? (a) a window pane (b) a boat hull (c) a skipping rope (d) a yoga mat
  28. 28.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  29. 29.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  30. 30.Which of these needs a transparent material? (a) a roof sheet (b) a spectacle lens (c) a tea flask lining (d) a switch contact
  31. 31.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  33. 33.🔍 Which is the odd one out? (a) brass (b) copper (c) iron (d) dry wood
  34. 34.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) glass (d) cotton cloth
  37. 37.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  38. 38.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.Which of these needs a flexible material? (a) a window pane (b) a plug pin (c) a yoga mat (d) an umbrella cover
  40. 40.True or false: the core of a wire needs a waterproof material. (a) True (b) False

Answer key

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

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