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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 190 · 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 flexible material? (a) a skipping rope (b) a plug pin (c) a tea flask lining (d) a water tank
  2. 2.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  3. 3.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.Which of these needs a heat insulator? (a) an umbrella cover (b) a tea flask lining (c) a water tank (d) a car windscreen
  5. 5.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) graphite (d) brass
  6. 6.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  7. 7.Which of these needs a heat insulator? (a) a window pane (b) a water tank (c) a spectacle lens (d) an oven glove
  8. 8.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  9. 9.True or false: a window pane needs a transparent material. (a) True (b) False
  10. 10.🔍 Which is the odd one out? (a) iron (b) glass (c) copper (d) brass
  11. 11.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  12. 12.True or false: a switch contact needs a transparent material. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) copper (b) rubber (c) plastic (d) clay pottery
  14. 14.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  15. 15.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) glass (d) dry wood
  16. 16.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) dry wood (d) steel
  17. 17.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.Which of these needs a heat insulator? (a) a plug pin (b) the core of a wire (c) a cooking pot handle (d) a yoga mat
  20. 20.Which of these needs a transparent material? (a) a skipping rope (b) a car seat belt (c) a roof sheet (d) a car windscreen
  21. 21.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.True or false: a raincoat needs a transparent material. (a) False (b) True
  23. 23.🧱 Which property matters most for a window pane? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  24. 24.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  27. 27.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  28. 28.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  29. 29.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🔍 Which is the odd one out? (a) brass (b) steel (c) iron (d) clay pottery
  31. 31.True or false: a window pane needs a heat insulator. (a) True (b) False
  32. 32.🧱 Which property matters most for a tea flask lining? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  33. 33.🔍 Which is the odd one out? (a) plastic (b) glass (c) clay pottery (d) brass
  34. 34.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  37. 37.Which of these needs a waterproof material? (a) a plug pin (b) a water tank (c) a spectacle lens (d) a cooking pot handle
  38. 38.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Which property matters most for a car windscreen? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  40. 40.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. a skipping rope
  2. electrical conductor
  3. an insulator
  4. a tea flask lining
  5. plastic
  6. steel
  7. an oven glove
  8. flexible
  9. True
  10. glass
  11. copper
  12. False
  13. copper
  14. heat insulator
  15. aluminium
  16. steel
  17. flexible
  18. a conductor
  19. a cooking pot handle
  20. a car windscreen
  21. a conductor
  22. False
  23. transparent
  24. transparent
  25. an insulator
  26. flexible
  27. waterproof
  28. False
  29. a conductor
  30. clay pottery
  31. False
  32. heat insulator
  33. brass
  34. an insulator
  35. a conductor
  36. waterproof
  37. a water tank
  38. an insulator
  39. transparent
  40. an insulator

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