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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 243 · 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 spectacle lens? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  2. 2.🧱 Which property matters most for a hair band? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  3. 3.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs a transparent material? (a) a plug pin (b) a switch contact (c) a car windscreen (d) a tea flask lining
  6. 6.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  7. 7.Which of these needs a heat insulator? (a) a magnifier lens (b) a yoga mat (c) a plug pin (d) a cooking pot handle
  8. 8.Which of these needs a flexible material? (a) a hair band (b) a roof sheet (c) a boat hull (d) a raincoat
  9. 9.🔍 Which is the odd one out? (a) rubber (b) plastic (c) steel (d) dry wood
  10. 10.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  11. 11.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  12. 12.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  13. 13.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  15. 15.True or false: a water tank needs a waterproof material. (a) False (b) True
  16. 16.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) iron (c) brass (d) clay pottery
  18. 18.Which of these needs an electrical conductor? (a) a hair band (b) an oven glove (c) a tea flask lining (d) a plug pin
  19. 19.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  20. 20.True or false: a boat hull needs a heat insulator. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) brass (b) copper (c) aluminium (d) dry wood
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.True or false: a window pane needs an electrical conductor. (a) True (b) False
  24. 24.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  25. 25.True or false: a boat hull needs a waterproof material. (a) True (b) False
  26. 26.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  27. 27.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  28. 28.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  30. 30.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  31. 31.Which of these needs a waterproof material? (a) a magnifier lens (b) a water tank (c) a tea flask lining (d) a car windscreen
  32. 32.Which of these needs a waterproof material? (a) a spectacle lens (b) a magnifier lens (c) a boat hull (d) a plug pin
  33. 33.Which of these needs a transparent material? (a) a plug pin (b) a spectacle lens (c) a raincoat (d) a water tank
  34. 34.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  35. 35.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🔍 Which is the odd one out? (a) iron (b) steel (c) plastic (d) graphite
  37. 37.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  38. 38.True or false: a yoga mat needs a flexible material. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) glass (d) rubber
  40. 40.Which of these needs a transparent material? (a) a yoga mat (b) an umbrella cover (c) a roof sheet (d) a window pane

Answer key

  1. transparent
  2. flexible
  3. an insulator
  4. a conductor
  5. a car windscreen
  6. wood or plastic
  7. a cooking pot handle
  8. a hair band
  9. steel
  10. flexible
  11. steel
  12. copper
  13. a conductor
  14. transparent
  15. True
  16. flexible
  17. clay pottery
  18. a plug pin
  19. glass
  20. False
  21. dry wood
  22. a conductor
  23. False
  24. False
  25. True
  26. True
  27. waterproof
  28. a conductor
  29. waterproof
  30. waterproof
  31. a water tank
  32. a boat hull
  33. a spectacle lens
  34. True
  35. an insulator
  36. plastic
  37. electrical conductor
  38. True
  39. aluminium
  40. a window pane

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