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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 618 · 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.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  2. 2.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  3. 3.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  4. 4.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  5. 5.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) cotton cloth (d) steel
  6. 6.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which property matters most for a magnifier lens? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  8. 8.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) plastic (d) cotton cloth
  9. 9.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  10. 10.True or false: a hair band needs a transparent material. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) rubber (d) brass
  12. 12.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  13. 13.Which of these needs a waterproof material? (a) a car windscreen (b) a magnifier lens (c) a tea flask lining (d) an umbrella cover
  14. 14.🔍 Which is the odd one out? (a) steel (b) iron (c) aluminium (d) plastic
  15. 15.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  16. 16.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) graphite (d) steel
  17. 17.Which of these needs a waterproof material? (a) a tea flask lining (b) a switch contact (c) a water tank (d) a yoga mat
  18. 18.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.True or false: a car seat belt needs a flexible material. (a) True (b) False
  20. 20.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  21. 21.True or false: a switch contact needs a waterproof material. (a) True (b) False
  22. 22.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a plug pin needs a flexible material. (a) False (b) True
  27. 27.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  28. 28.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  29. 29.🔍 Which is the odd one out? (a) steel (b) aluminium (c) glass (d) iron
  30. 30.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  31. 31.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  34. 34.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  36. 36.True or false: a window pane needs a heat insulator. (a) True (b) False
  37. 37.Which of these needs an electrical conductor? (a) a magnifier lens (b) a boat hull (c) the core of a wire (d) a roof sheet
  38. 38.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  39. 39.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  40. 40.True or false: a switch contact needs an electrical conductor. (a) False (b) True

Answer key

  1. False
  2. wood or plastic
  3. transparent
  4. True
  5. steel
  6. a conductor
  7. transparent
  8. aluminium
  9. glass
  10. False
  11. brass
  12. transparent
  13. an umbrella cover
  14. plastic
  15. waterproof
  16. clay pottery
  17. a water tank
  18. an insulator
  19. True
  20. heat insulator
  21. False
  22. waterproof
  23. a conductor
  24. a conductor
  25. a conductor
  26. False
  27. flexible
  28. electrical conductor
  29. glass
  30. steel
  31. copper
  32. a conductor
  33. electrical conductor
  34. an insulator
  35. plastic-coated cloth
  36. False
  37. the core of a wire
  38. transparent
  39. heat insulator
  40. True

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