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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 980 · 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 is the odd one out? (a) clay pottery (b) rubber (c) glass (d) brass
  2. 2.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  3. 3.Which of these needs a transparent material? (a) a spectacle lens (b) a raincoat (c) a roof sheet (d) a boat hull
  4. 4.True or false: a skipping rope needs a transparent material. (a) False (b) True
  5. 5.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  7. 7.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  8. 8.Which of these needs a flexible material? (a) an oven glove (b) a spectacle lens (c) a plug pin (d) a car seat belt
  9. 9.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  10. 10.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  11. 11.True or false: a hair band needs a transparent material. (a) False (b) True
  12. 12.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  13. 13.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  14. 14.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  15. 15.Which of these needs an electrical conductor? (a) an oven glove (b) a switch contact (c) a window pane (d) a roof sheet
  16. 16.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  17. 17.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  18. 18.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  19. 19.Which of these needs a waterproof material? (a) a cooking pot handle (b) a window pane (c) a car seat belt (d) an umbrella cover
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.Which of these needs a transparent material? (a) a magnifier lens (b) the core of a wire (c) a hair band (d) a car seat belt
  22. 22.Which of these needs a flexible material? (a) a cooking pot handle (b) a skipping rope (c) a spectacle lens (d) an umbrella cover
  23. 23.Which of these needs a heat insulator? (a) a tea flask lining (b) the core of a wire (c) a car seat belt (d) a spectacle lens
  24. 24.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  25. 25.Which of these needs a heat insulator? (a) a spectacle lens (b) a hair band (c) an oven glove (d) a roof sheet
  26. 26.True or false: a yoga mat needs a transparent material. (a) True (b) False
  27. 27.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  29. 29.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) dry wood (d) clay pottery
  32. 32.🔍 Which is the odd one out? (a) plastic (b) steel (c) glass (d) cotton cloth
  33. 33.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  34. 34.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  35. 35.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.Which of these needs a flexible material? (a) a magnifier lens (b) a tea flask lining (c) a water tank (d) a yoga mat
  37. 37.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) dry wood (d) rubber
  39. 39.🔍 Which is the odd one out? (a) iron (b) dry wood (c) plastic (d) cotton cloth
  40. 40.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof

Answer key

  1. brass
  2. True
  3. a spectacle lens
  4. False
  5. an insulator
  6. True
  7. electrical conductor
  8. a car seat belt
  9. glass
  10. transparent
  11. False
  12. flexible
  13. heat insulator
  14. flexible
  15. a switch contact
  16. steel
  17. waterproof
  18. copper
  19. an umbrella cover
  20. an insulator
  21. a magnifier lens
  22. a skipping rope
  23. a tea flask lining
  24. heat insulator
  25. an oven glove
  26. False
  27. a conductor
  28. waterproof
  29. a conductor
  30. an insulator
  31. aluminium
  32. steel
  33. wood or plastic
  34. flexible
  35. a conductor
  36. a yoga mat
  37. False
  38. copper
  39. iron
  40. electrical conductor

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