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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 655 · 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 of these needs an electrical conductor? (a) a spectacle lens (b) a plug pin (c) a water tank (d) a tea flask lining
  2. 2.Which of these needs a transparent material? (a) the core of a wire (b) a plug pin (c) a magnifier lens (d) a water tank
  3. 3.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  4. 4.🔍 Which is the odd one out? (a) copper (b) aluminium (c) brass (d) dry wood
  5. 5.True or false: a car seat belt needs a flexible material. (a) False (b) True
  6. 6.True or false: the core of a wire needs a flexible material. (a) False (b) True
  7. 7.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  8. 8.Which of these needs a waterproof material? (a) a roof sheet (b) a yoga mat (c) the core of a wire (d) a magnifier lens
  9. 9.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  10. 10.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  12. 12.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  13. 13.Which of these needs a heat insulator? (a) a roof sheet (b) a skipping rope (c) a car windscreen (d) an oven glove
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  16. 16.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  18. 18.Which of these needs a waterproof material? (a) a spectacle lens (b) an umbrella cover (c) a cooking pot handle (d) an oven glove
  19. 19.Which of these needs a flexible material? (a) a magnifier lens (b) a switch contact (c) a yoga mat (d) a spectacle lens
  20. 20.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  22. 22.Which of these needs an electrical conductor? (a) a boat hull (b) a yoga mat (c) a water tank (d) the core of a wire
  23. 23.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  24. 24.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  25. 25.🧱 Which property matters most for a water tank? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  26. 26.Which of these needs a waterproof material? (a) a magnifier lens (b) a skipping rope (c) a switch contact (d) a boat hull
  27. 27.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  28. 28.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  29. 29.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  30. 30.True or false: a hair band needs a flexible material. (a) False (b) True
  31. 31.True or false: a roof sheet needs a flexible material. (a) False (b) True
  32. 32.Which of these needs a transparent material? (a) a switch contact (b) a car windscreen (c) the core of a wire (d) an umbrella cover
  33. 33.True or false: a car windscreen needs a flexible material. (a) False (b) True
  34. 34.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.Which of these needs a heat insulator? (a) a window pane (b) a roof sheet (c) a cooking pot handle (d) the core of a wire
  36. 36.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  37. 37.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  38. 38.🔍 Which is the odd one out? (a) brass (b) copper (c) graphite (d) cotton cloth
  39. 39.Which of these needs a waterproof material? (a) a water tank (b) a switch contact (c) a car seat belt (d) a hair band
  40. 40.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) clay pottery (d) graphite

Answer key

  1. a plug pin
  2. a magnifier lens
  3. transparent
  4. dry wood
  5. True
  6. False
  7. electrical conductor
  8. a roof sheet
  9. False
  10. an insulator
  11. True
  12. waterproof
  13. an oven glove
  14. a conductor
  15. heat insulator
  16. an insulator
  17. copper
  18. an umbrella cover
  19. a yoga mat
  20. a conductor
  21. heat insulator
  22. the core of a wire
  23. plastic-coated cloth
  24. waterproof
  25. waterproof
  26. a boat hull
  27. transparent
  28. flexible
  29. transparent
  30. True
  31. False
  32. a car windscreen
  33. False
  34. a conductor
  35. a cooking pot handle
  36. True
  37. flexible
  38. cotton cloth
  39. a water tank
  40. graphite

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