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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 845 · 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 window pane? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  2. 2.🧱 Which property matters most for a hair band? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  3. 3.True or false: a raincoat needs a waterproof material. (a) True (b) False
  4. 4.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  6. 6.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  7. 7.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) iron (d) copper
  8. 8.True or false: a plug pin needs a waterproof material. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) plastic (b) glass (c) rubber (d) copper
  10. 10.True or false: a car windscreen needs a transparent material. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) copper (c) glass (d) graphite
  12. 12.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) brass (b) aluminium (c) steel (d) dry wood
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.True or false: a water tank needs a transparent material. (a) True (b) False
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.Which of these needs a flexible material? (a) a window pane (b) a hair band (c) an umbrella cover (d) a roof sheet
  19. 19.True or false: a window pane needs an electrical conductor. (a) True (b) False
  20. 20.Which of these needs an electrical conductor? (a) a plug pin (b) a yoga mat (c) a boat hull (d) a water tank
  21. 21.Which of these needs a transparent material? (a) the core of a wire (b) a yoga mat (c) a skipping rope (d) a car windscreen
  22. 22.Which of these needs a heat insulator? (a) a plug pin (b) a cooking pot handle (c) the core of a wire (d) a window pane
  23. 23.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Which property matters most for a car windscreen? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  25. 25.🧱 Which property matters most for an oven glove? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  26. 26.True or false: a plug pin needs a transparent material. (a) True (b) False
  27. 27.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.Which of these needs a transparent material? (a) a boat hull (b) a magnifier lens (c) the core of a wire (d) a tea flask lining
  31. 31.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) steel (d) rubber
  32. 32.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a magnifier lens (c) an umbrella cover (d) a switch contact
  33. 33.Which of these needs a waterproof material? (a) a boat hull (b) a hair band (c) a switch contact (d) a magnifier lens
  34. 34.🧱 Which property matters most for a car seat belt? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  35. 35.Which of these needs a waterproof material? (a) a yoga mat (b) an umbrella cover (c) the core of a wire (d) a spectacle lens
  36. 36.🧱 Which property matters most for the core of a wire? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  37. 37.Which of these needs a flexible material? (a) a yoga mat (b) a magnifier lens (c) the core of a wire (d) a roof sheet
  38. 38.True or false: a window pane needs a transparent material. (a) False (b) True
  39. 39.🧱 Which property matters most for a yoga mat? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  40. 40.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel

Answer key

  1. transparent
  2. flexible
  3. True
  4. a conductor
  5. copper
  6. wood or plastic
  7. cotton cloth
  8. False
  9. copper
  10. True
  11. glass
  12. False
  13. dry wood
  14. a conductor
  15. an insulator
  16. False
  17. a conductor
  18. a hair band
  19. False
  20. a plug pin
  21. a car windscreen
  22. a cooking pot handle
  23. a conductor
  24. transparent
  25. heat insulator
  26. False
  27. an insulator
  28. True
  29. a conductor
  30. a magnifier lens
  31. steel
  32. a switch contact
  33. a boat hull
  34. flexible
  35. an umbrella cover
  36. electrical conductor
  37. a yoga mat
  38. True
  39. flexible
  40. glass

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