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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 545 · 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 material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  2. 2.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.True or false: a window pane needs a waterproof material. (a) False (b) True
  4. 4.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  5. 5.Which of these needs a flexible material? (a) a hair band (b) the core of a wire (c) an umbrella cover (d) a window pane
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  8. 8.True or false: a hair band needs a waterproof material. (a) True (b) False
  9. 9.🔍 Which is the odd one out? (a) aluminium (b) glass (c) rubber (d) cotton cloth
  10. 10.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: a switch contact needs a flexible material. (a) True (b) False
  13. 13.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  14. 14.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  15. 15.Which of these needs an electrical conductor? (a) a window pane (b) a roof sheet (c) a spectacle lens (d) the core of a wire
  16. 16.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) graphite (d) dry wood
  17. 17.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  18. 18.Which of these needs a heat insulator? (a) the core of a wire (b) a tea flask lining (c) an umbrella cover (d) a plug pin
  19. 19.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  20. 20.Which of these needs a transparent material? (a) a hair band (b) a spectacle lens (c) a water tank (d) a plug pin
  21. 21.🧱 Which property matters most for a switch contact? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  22. 22.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  23. 23.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  24. 24.True or false: a plug pin needs a flexible material. (a) False (b) True
  25. 25.Which of these needs a heat insulator? (a) a plug pin (b) a water tank (c) an oven glove (d) a boat hull
  26. 26.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  27. 27.🔍 Which is the odd one out? (a) aluminium (b) brass (c) steel (d) rubber
  28. 28.Which of these needs a waterproof material? (a) a car windscreen (b) a hair band (c) an umbrella cover (d) an oven glove
  29. 29.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  30. 30.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  31. 31.🧱 Which property matters most for a magnifier lens? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  32. 32.🔍 Which is the odd one out? (a) iron (b) aluminium (c) steel (d) clay pottery
  33. 33.🔍 Which is the odd one out? (a) brass (b) aluminium (c) glass (d) iron
  34. 34.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) rubber (d) iron
  35. 35.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🔍 Which is the odd one out? (a) glass (b) brass (c) clay pottery (d) rubber
  37. 37.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  38. 38.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a roof sheet needs a transparent material. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) rubber (b) glass (c) clay pottery (d) steel

Answer key

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

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