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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 643 · 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) steel (b) dry wood (c) aluminium (d) copper
  2. 2.Which of these needs a heat insulator? (a) a water tank (b) a magnifier lens (c) a window pane (d) a tea flask lining
  3. 3.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  4. 4.Which of these needs a waterproof material? (a) a skipping rope (b) a spectacle lens (c) a yoga mat (d) a roof sheet
  5. 5.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  6. 6.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  7. 7.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs an electrical conductor? (a) a car windscreen (b) a window pane (c) a plug pin (d) a spectacle lens
  9. 9.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  10. 10.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) rubber (d) aluminium
  11. 11.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  15. 15.True or false: a boat hull needs a transparent material. (a) True (b) False
  16. 16.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  17. 17.True or false: a hair band needs a flexible material. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) brass (d) graphite
  19. 19.Which of these needs a flexible material? (a) a skipping rope (b) the core of a wire (c) an oven glove (d) a raincoat
  20. 20.Which of these needs a waterproof material? (a) a switch contact (b) a magnifier lens (c) a water tank (d) a skipping rope
  21. 21.True or false: a window pane needs a transparent material. (a) True (b) False
  22. 22.Which of these needs a waterproof material? (a) a raincoat (b) a car seat belt (c) a cooking pot handle (d) a window pane
  23. 23.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  26. 26.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  27. 27.True or false: a boat hull needs a waterproof material. (a) False (b) True
  28. 28.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  29. 29.🧱 Which property matters most for a switch contact? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  30. 30.Which of these needs a transparent material? (a) a raincoat (b) the core of a wire (c) a magnifier lens (d) an oven glove
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) glass (d) rubber
  33. 33.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs a transparent material? (a) a window pane (b) an umbrella cover (c) a water tank (d) a raincoat
  35. 35.Which of these needs a heat insulator? (a) a roof sheet (b) a cooking pot handle (c) the core of a wire (d) a water tank
  36. 36.Which of these needs a heat insulator? (a) an oven glove (b) a car seat belt (c) a switch contact (d) a magnifier lens
  37. 37.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  39. 39.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  40. 40.🔍 Which is the odd one out? (a) steel (b) iron (c) graphite (d) clay pottery

Answer key

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

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