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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 299 · 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.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  3. 3.Which of these needs an electrical conductor? (a) a switch contact (b) a water tank (c) an umbrella cover (d) a roof sheet
  4. 4.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  5. 5.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  7. 7.Which of these needs a waterproof material? (a) a roof sheet (b) a hair band (c) a magnifier lens (d) an oven glove
  8. 8.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) dry wood (d) rubber
  9. 9.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  11. 11.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  12. 12.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🔍 Which is the odd one out? (a) graphite (b) rubber (c) iron (d) brass
  14. 14.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) dry wood (d) iron
  15. 15.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  18. 18.True or false: a car windscreen needs a flexible material. (a) True (b) False
  19. 19.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) brass (d) plastic
  20. 20.True or false: a plug pin needs a flexible material. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) steel (b) rubber (c) dry wood (d) glass
  22. 22.Which of these needs a waterproof material? (a) a skipping rope (b) a car seat belt (c) a tea flask lining (d) an umbrella cover
  23. 23.True or false: a raincoat needs a transparent material. (a) True (b) False
  24. 24.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  25. 25.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  26. 26.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  27. 27.🧱 Which property matters most for a raincoat? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  28. 28.Which of these needs a flexible material? (a) a magnifier lens (b) a hair band (c) a plug pin (d) a spectacle lens
  29. 29.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.Which of these needs a heat insulator? (a) a roof sheet (b) a skipping rope (c) a yoga mat (d) a tea flask lining
  31. 31.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) glass (d) copper
  32. 32.Which of these needs a heat insulator? (a) a cooking pot handle (b) a yoga mat (c) a car seat belt (d) a raincoat
  33. 33.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  35. 35.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  36. 36.True or false: a window pane needs a flexible material. (a) False (b) True
  37. 37.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  38. 38.Which of these needs a transparent material? (a) the core of a wire (b) a car windscreen (c) a yoga mat (d) a boat hull
  39. 39.True or false: a boat hull needs a waterproof material. (a) True (b) False
  40. 40.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. a conductor
  2. electrical conductor
  3. a switch contact
  4. plastic-coated cloth
  5. a conductor
  6. electrical conductor
  7. a roof sheet
  8. aluminium
  9. a conductor
  10. wood or plastic
  11. electrical conductor
  12. a conductor
  13. rubber
  14. iron
  15. True
  16. a conductor
  17. flexible
  18. False
  19. brass
  20. False
  21. steel
  22. an umbrella cover
  23. False
  24. transparent
  25. flexible
  26. copper
  27. waterproof
  28. a hair band
  29. an insulator
  30. a tea flask lining
  31. copper
  32. a cooking pot handle
  33. an insulator
  34. heat insulator
  35. glass
  36. False
  37. False
  38. a car windscreen
  39. True
  40. an insulator

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