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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 740 · 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 the core of a wire? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  2. 2.True or false: a car windscreen needs a transparent material. (a) False (b) True
  3. 3.Which of these needs a heat insulator? (a) a magnifier lens (b) a water tank (c) an oven glove (d) a boat hull
  4. 4.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.Which of these needs a waterproof material? (a) a switch contact (b) a yoga mat (c) an umbrella cover (d) a plug pin
  6. 6.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  8. 8.🔍 Which is the odd one out? (a) brass (b) aluminium (c) rubber (d) copper
  9. 9.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  11. 11.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  12. 12.Which of these needs an electrical conductor? (a) a roof sheet (b) a water tank (c) a plug pin (d) an umbrella cover
  13. 13.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  14. 14.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  15. 15.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  16. 16.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) aluminium (d) copper
  18. 18.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  19. 19.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  20. 20.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  21. 21.True or false: a cooking pot handle needs a transparent material. (a) False (b) True
  22. 22.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  23. 23.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these needs a flexible material? (a) a raincoat (b) a spectacle lens (c) a cooking pot handle (d) a hair band
  26. 26.🔍 Which is the odd one out? (a) plastic (b) glass (c) dry wood (d) brass
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) clay pottery (d) rubber
  28. 28.🧱 Which property matters most for a car seat belt? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  29. 29.🔍 Which is the odd one out? (a) glass (b) steel (c) cotton cloth (d) rubber
  30. 30.True or false: an oven glove needs a heat insulator. (a) False (b) True
  31. 31.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  32. 32.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🔍 Which is the odd one out? (a) iron (b) brass (c) graphite (d) clay pottery
  34. 34.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  35. 35.🧱 Which property matters most for a water tank? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  36. 36.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  38. 38.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  39. 39.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  40. 40.Which of these needs a waterproof material? (a) a water tank (b) a plug pin (c) a switch contact (d) a car windscreen

Answer key

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

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