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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 880 · 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 car seat belt? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  2. 2.True or false: an oven glove needs a flexible material. (a) True (b) False
  3. 3.True or false: a plug pin needs a transparent material. (a) True (b) False
  4. 4.Which of these needs an electrical conductor? (a) the core of a wire (b) a roof sheet (c) a cooking pot handle (d) a car seat belt
  5. 5.Which of these needs a flexible material? (a) a tea flask lining (b) a car windscreen (c) a boat hull (d) a yoga mat
  6. 6.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  7. 7.True or false: a water tank needs a flexible material. (a) False (b) True
  8. 8.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  9. 9.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  10. 10.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🔍 Which is the odd one out? (a) brass (b) iron (c) aluminium (d) cotton cloth
  12. 12.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  13. 13.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.True or false: a water tank needs a heat insulator. (a) True (b) False
  16. 16.Which of these needs a waterproof material? (a) a roof sheet (b) a yoga mat (c) a magnifier lens (d) an oven glove
  17. 17.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  18. 18.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  19. 19.🔍 Which is the odd one out? (a) iron (b) brass (c) copper (d) plastic
  20. 20.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  21. 21.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  22. 22.🧱 Which property matters most for a tea flask lining? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  23. 23.🔍 Which is the odd one out? (a) iron (b) copper (c) rubber (d) steel
  24. 24.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  25. 25.Which of these needs a transparent material? (a) a boat hull (b) a skipping rope (c) a switch contact (d) a magnifier lens
  26. 26.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a switch contact needs a heat insulator. (a) False (b) True
  28. 28.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  32. 32.🔍 Which is the odd one out? (a) brass (b) steel (c) clay pottery (d) aluminium
  33. 33.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  34. 34.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  35. 35.🧱 Which property matters most for a switch contact? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  36. 36.Which of these needs a waterproof material? (a) a car seat belt (b) a boat hull (c) a plug pin (d) an oven glove
  37. 37.Which of these needs an electrical conductor? (a) a magnifier lens (b) a car seat belt (c) a switch contact (d) a tea flask lining
  38. 38.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) iron (d) cotton cloth
  39. 39.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible

Answer key

  1. flexible
  2. False
  3. False
  4. the core of a wire
  5. a yoga mat
  6. waterproof
  7. False
  8. False
  9. transparent
  10. an insulator
  11. cotton cloth
  12. False
  13. copper
  14. a conductor
  15. False
  16. a roof sheet
  17. electrical conductor
  18. plastic-coated cloth
  19. plastic
  20. waterproof
  21. glass
  22. heat insulator
  23. rubber
  24. steel
  25. a magnifier lens
  26. an insulator
  27. False
  28. False
  29. a conductor
  30. an insulator
  31. electrical conductor
  32. clay pottery
  33. False
  34. transparent
  35. electrical conductor
  36. a boat hull
  37. a switch contact
  38. iron
  39. a conductor
  40. transparent

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