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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 667 · 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.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a boat hull needs a waterproof material. (a) True (b) False
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🔍 Which is the odd one out? (a) copper (b) dry wood (c) brass (d) aluminium
  5. 5.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  6. 6.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.True or false: the core of a wire needs a flexible material. (a) True (b) False
  8. 8.Which of these needs a heat insulator? (a) a car seat belt (b) a skipping rope (c) a window pane (d) a tea flask lining
  9. 9.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  10. 10.True or false: a skipping rope needs a flexible material. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) copper (b) glass (c) rubber (d) cotton cloth
  12. 12.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) graphite (d) iron
  13. 13.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  14. 14.Which of these needs a transparent material? (a) a window pane (b) a plug pin (c) a water tank (d) a raincoat
  15. 15.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) iron (d) brass
  18. 18.Which of these needs a flexible material? (a) a magnifier lens (b) a car windscreen (c) a yoga mat (d) a boat hull
  19. 19.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  20. 20.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.True or false: an oven glove needs a waterproof material. (a) True (b) False
  23. 23.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  24. 24.Which of these needs a heat insulator? (a) a cooking pot handle (b) a window pane (c) a car windscreen (d) a plug pin
  25. 25.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) brass (d) plastic
  26. 26.🔍 Which is the odd one out? (a) rubber (b) copper (c) steel (d) iron
  27. 27.Which of these needs a transparent material? (a) a boat hull (b) an umbrella cover (c) a spectacle lens (d) a yoga mat
  28. 28.Which of these needs a waterproof material? (a) a tea flask lining (b) a car windscreen (c) a water tank (d) a yoga mat
  29. 29.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs a waterproof material? (a) a tea flask lining (b) a magnifier lens (c) a plug pin (d) a raincoat
  32. 32.True or false: a switch contact needs a heat insulator. (a) True (b) False
  33. 33.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  34. 34.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  35. 35.🔍 Which is the odd one out? (a) graphite (b) plastic (c) clay pottery (d) cotton cloth
  36. 36.Which of these needs an electrical conductor? (a) the core of a wire (b) a boat hull (c) a skipping rope (d) a car windscreen
  37. 37.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  38. 38.🧱 Which property matters most for a tea flask lining? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  39. 39.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. a conductor
  2. True
  3. an insulator
  4. dry wood
  5. copper
  6. a conductor
  7. False
  8. a tea flask lining
  9. glass
  10. True
  11. copper
  12. clay pottery
  13. steel
  14. a window pane
  15. True
  16. a conductor
  17. cotton cloth
  18. a yoga mat
  19. transparent
  20. an insulator
  21. an insulator
  22. False
  23. flexible
  24. a cooking pot handle
  25. brass
  26. rubber
  27. a spectacle lens
  28. a water tank
  29. a conductor
  30. an insulator
  31. a raincoat
  32. False
  33. transparent
  34. flexible
  35. graphite
  36. the core of a wire
  37. wood or plastic
  38. heat insulator
  39. a conductor
  40. a conductor

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