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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 490 · 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 a heat insulator? (a) a water tank (b) a yoga mat (c) a magnifier lens (d) an oven glove
  2. 2.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  3. 3.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  4. 4.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  5. 5.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🔍 Which is the odd one out? (a) glass (b) copper (c) iron (d) steel
  8. 8.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a yoga mat needs a flexible material. (a) False (b) True
  10. 10.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.Which of these needs a waterproof material? (a) a yoga mat (b) a water tank (c) an oven glove (d) a hair band
  12. 12.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  13. 13.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) copper (c) cotton cloth (d) steel
  16. 16.True or false: a yoga mat needs a transparent material. (a) False (b) True
  17. 17.🧱 Which property matters most for a window pane? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  18. 18.Which of these needs a transparent material? (a) a cooking pot handle (b) a window pane (c) a hair band (d) a skipping rope
  19. 19.Which of these needs a waterproof material? (a) a car windscreen (b) the core of a wire (c) a boat hull (d) a spectacle lens
  20. 20.Which of these needs a waterproof material? (a) a spectacle lens (b) a skipping rope (c) a plug pin (d) a roof sheet
  21. 21.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  22. 22.🔍 Which is the odd one out? (a) dry wood (b) copper (c) iron (d) steel
  23. 23.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  24. 24.True or false: a switch contact needs a transparent material. (a) True (b) False
  25. 25.Which of these needs an electrical conductor? (a) a switch contact (b) a raincoat (c) a skipping rope (d) a window pane
  26. 26.Which of these needs a heat insulator? (a) a skipping rope (b) a plug pin (c) a cooking pot handle (d) the core of a wire
  27. 27.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: a car windscreen needs a transparent material. (a) False (b) True
  31. 31.Which of these needs a transparent material? (a) a cooking pot handle (b) the core of a wire (c) a water tank (d) a car windscreen
  32. 32.Which of these needs a flexible material? (a) a plug pin (b) a switch contact (c) a raincoat (d) a hair band
  33. 33.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  34. 34.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) graphite (d) glass
  35. 35.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  36. 36.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  37. 37.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.True or false: an oven glove needs a heat insulator. (a) True (b) False
  40. 40.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) flexible (d) transparent

Answer key

  1. an oven glove
  2. plastic-coated cloth
  3. False
  4. wood or plastic
  5. glass
  6. a conductor
  7. glass
  8. a conductor
  9. True
  10. an insulator
  11. a water tank
  12. electrical conductor
  13. a conductor
  14. flexible
  15. cotton cloth
  16. False
  17. transparent
  18. a window pane
  19. a boat hull
  20. a roof sheet
  21. waterproof
  22. dry wood
  23. heat insulator
  24. False
  25. a switch contact
  26. a cooking pot handle
  27. an insulator
  28. an insulator
  29. an insulator
  30. True
  31. a car windscreen
  32. a hair band
  33. True
  34. graphite
  35. electrical conductor
  36. True
  37. False
  38. a conductor
  39. True
  40. flexible

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