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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 329 · 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) cardboard (c) cotton wool (d) plastic-coated cloth
  2. 2.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  3. 3.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  5. 5.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  6. 6.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) rubber (b) brass (c) iron (d) graphite
  8. 8.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  9. 9.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  10. 10.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  11. 11.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  12. 12.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  14. 14.Which of these needs an electrical conductor? (a) the core of a wire (b) a car windscreen (c) an umbrella cover (d) a hair band
  15. 15.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) dry wood (d) steel
  16. 16.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  17. 17.🔍 Which is the odd one out? (a) plastic (b) brass (c) aluminium (d) copper
  18. 18.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  19. 19.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  21. 21.Which of these needs a transparent material? (a) a window pane (b) a plug pin (c) a raincoat (d) a roof sheet
  22. 22.🔍 Which is the odd one out? (a) steel (b) aluminium (c) cotton cloth (d) graphite
  23. 23.True or false: a hair band needs a flexible material. (a) True (b) False
  24. 24.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  25. 25.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) plastic (d) rubber
  27. 27.True or false: a water tank needs an electrical conductor. (a) False (b) True
  28. 28.True or false: a plug pin needs a heat insulator. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) aluminium (b) brass (c) iron (d) dry wood
  30. 30.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  31. 31.Which of these needs a flexible material? (a) a hair band (b) an oven glove (c) a cooking pot handle (d) a switch contact
  32. 32.🔍 Which is the odd one out? (a) plastic (b) rubber (c) cotton cloth (d) copper
  33. 33.Which of these needs a transparent material? (a) an oven glove (b) a spectacle lens (c) the core of a wire (d) a hair band
  34. 34.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  35. 35.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  36. 36.True or false: a window pane needs a transparent material. (a) False (b) True
  37. 37.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  38. 38.Which of these needs a heat insulator? (a) an oven glove (b) a window pane (c) a raincoat (d) a hair band
  39. 39.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  40. 40.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) flexible

Answer key

  1. plastic-coated cloth
  2. waterproof
  3. a conductor
  4. False
  5. flexible
  6. True
  7. rubber
  8. waterproof
  9. flexible
  10. steel
  11. wood or plastic
  12. an insulator
  13. copper
  14. the core of a wire
  15. steel
  16. flexible
  17. plastic
  18. False
  19. a conductor
  20. waterproof
  21. a window pane
  22. cotton cloth
  23. True
  24. heat insulator
  25. a conductor
  26. iron
  27. False
  28. False
  29. dry wood
  30. True
  31. a hair band
  32. copper
  33. a spectacle lens
  34. transparent
  35. False
  36. True
  37. transparent
  38. an oven glove
  39. True
  40. electrical conductor

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