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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 770 · 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) an oven glove (b) a magnifier lens (c) a switch contact (d) a boat hull
  2. 2.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  3. 3.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  5. 5.Which of these needs an electrical conductor? (a) a car windscreen (b) a window pane (c) the core of a wire (d) an oven glove
  6. 6.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  8. 8.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  9. 9.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  11. 11.True or false: a window pane needs a transparent material. (a) False (b) True
  12. 12.Which of these needs an electrical conductor? (a) a hair band (b) an oven glove (c) a switch contact (d) a window pane
  13. 13.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.True or false: a plug pin needs a heat insulator. (a) False (b) True
  15. 15.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  16. 16.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  17. 17.🧱 Which property matters most for a spectacle lens? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  18. 18.True or false: a plug pin needs a transparent material. (a) False (b) True
  19. 19.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  20. 20.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  21. 21.🔍 Which is the odd one out? (a) glass (b) aluminium (c) graphite (d) steel
  22. 22.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  23. 23.True or false: a hair band needs a waterproof material. (a) False (b) True
  24. 24.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  25. 25.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  26. 26.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  27. 27.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🔍 Which is the odd one out? (a) rubber (b) copper (c) cotton cloth (d) dry wood
  29. 29.Which of these needs a transparent material? (a) a water tank (b) a cooking pot handle (c) a spectacle lens (d) a yoga mat
  30. 30.Which of these needs a flexible material? (a) a water tank (b) a hair band (c) an umbrella cover (d) a boat hull
  31. 31.🔍 Which is the odd one out? (a) graphite (b) rubber (c) brass (d) copper
  32. 32.Which of these needs a transparent material? (a) a water tank (b) a magnifier lens (c) a plug pin (d) a cooking pot handle
  33. 33.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  34. 34.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) rubber (d) plastic
  36. 36.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) steel (d) iron
  37. 37.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  38. 38.Which of these needs an electrical conductor? (a) a water tank (b) a hair band (c) an umbrella cover (d) a plug pin
  39. 39.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: an oven glove needs a transparent material. (a) False (b) True

Answer key

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

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