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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 555 · 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 cooking pot handle? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  2. 2.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which property matters most for a tea flask lining? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  4. 4.True or false: a hair band needs a flexible material. (a) False (b) True
  5. 5.🔍 Which is the odd one out? (a) plastic (b) glass (c) aluminium (d) cotton cloth
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  8. 8.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.True or false: a hair band needs a transparent material. (a) True (b) False
  10. 10.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) copper (d) clay pottery
  11. 11.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  12. 12.Which of these needs a waterproof material? (a) a roof sheet (b) a car windscreen (c) the core of a wire (d) a magnifier lens
  13. 13.🔍 Which is the odd one out? (a) steel (b) copper (c) rubber (d) graphite
  14. 14.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  15. 15.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  16. 16.True or false: an oven glove needs a heat insulator. (a) True (b) False
  17. 17.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  18. 18.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  19. 19.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  20. 20.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  21. 21.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  22. 22.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  23. 23.Which of these needs a waterproof material? (a) a plug pin (b) an umbrella cover (c) a tea flask lining (d) a hair band
  24. 24.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) steel (c) iron (d) glass
  29. 29.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  30. 30.🔍 Which is the odd one out? (a) brass (b) dry wood (c) copper (d) aluminium
  31. 31.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a yoga mat (c) a switch contact (d) a boat hull
  33. 33.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  34. 34.Which of these needs a flexible material? (a) the core of a wire (b) a raincoat (c) a tea flask lining (d) a yoga mat
  35. 35.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  36. 36.Which of these needs a flexible material? (a) a cooking pot handle (b) a plug pin (c) a car seat belt (d) a spectacle lens
  37. 37.Which of these needs a flexible material? (a) a spectacle lens (b) a boat hull (c) a roof sheet (d) a skipping rope
  38. 38.🔍 Which is the odd one out? (a) rubber (b) iron (c) clay pottery (d) glass
  39. 39.True or false: a boat hull needs a heat insulator. (a) False (b) True
  40. 40.Which of these needs a heat insulator? (a) a window pane (b) an oven glove (c) a spectacle lens (d) a skipping rope

Answer key

  1. heat insulator
  2. an insulator
  3. heat insulator
  4. True
  5. aluminium
  6. an insulator
  7. plastic-coated cloth
  8. an insulator
  9. False
  10. copper
  11. True
  12. a roof sheet
  13. rubber
  14. copper
  15. wood or plastic
  16. True
  17. electrical conductor
  18. waterproof
  19. waterproof
  20. electrical conductor
  21. False
  22. heat insulator
  23. an umbrella cover
  24. a conductor
  25. electrical conductor
  26. a conductor
  27. a conductor
  28. glass
  29. transparent
  30. dry wood
  31. an insulator
  32. a switch contact
  33. False
  34. a yoga mat
  35. glass
  36. a car seat belt
  37. a skipping rope
  38. iron
  39. False
  40. an oven glove

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