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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 476 · 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.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  2. 2.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  5. 5.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  6. 6.Which of these needs a heat insulator? (a) a cooking pot handle (b) a car seat belt (c) a yoga mat (d) a hair band
  7. 7.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) copper (d) graphite
  8. 8.🔍 Which is the odd one out? (a) graphite (b) brass (c) iron (d) clay pottery
  9. 9.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  10. 10.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) glass (d) clay pottery
  11. 11.True or false: a raincoat needs a waterproof material. (a) True (b) False
  12. 12.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  13. 13.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  14. 14.Which of these needs an electrical conductor? (a) a spectacle lens (b) the core of a wire (c) a magnifier lens (d) a hair band
  15. 15.Which of these needs a flexible material? (a) a spectacle lens (b) the core of a wire (c) a water tank (d) a car seat belt
  16. 16.🧱 Which property matters most for a boat hull? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  17. 17.True or false: a water tank needs a flexible material. (a) True (b) False
  18. 18.🧱 Which property matters most for a car seat belt? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  19. 19.Which of these needs an electrical conductor? (a) a plug pin (b) a raincoat (c) a roof sheet (d) a spectacle lens
  20. 20.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  21. 21.True or false: a yoga mat needs a flexible material. (a) True (b) False
  22. 22.True or false: a skipping rope needs a transparent material. (a) False (b) True
  23. 23.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  26. 26.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  27. 27.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  30. 30.True or false: a roof sheet needs a flexible material. (a) True (b) False
  31. 31.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) plastic (b) steel (c) iron (d) aluminium
  33. 33.Which of these needs a waterproof material? (a) a car seat belt (b) a window pane (c) a boat hull (d) a skipping rope
  34. 34.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  35. 35.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: the core of a wire needs a flexible material. (a) True (b) False
  37. 37.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.Which of these needs a transparent material? (a) a window pane (b) the core of a wire (c) a car seat belt (d) a yoga mat
  39. 39.True or false: a water tank needs a waterproof material. (a) False (b) True
  40. 40.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. True
  2. an insulator
  3. a conductor
  4. flexible
  5. glass
  6. a cooking pot handle
  7. cotton cloth
  8. clay pottery
  9. waterproof
  10. graphite
  11. True
  12. False
  13. copper
  14. the core of a wire
  15. a car seat belt
  16. waterproof
  17. False
  18. flexible
  19. a plug pin
  20. True
  21. True
  22. False
  23. a conductor
  24. a conductor
  25. steel
  26. transparent
  27. an insulator
  28. an insulator
  29. heat insulator
  30. False
  31. False
  32. plastic
  33. a boat hull
  34. transparent
  35. a conductor
  36. False
  37. an insulator
  38. a window pane
  39. True
  40. an insulator

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