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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 245 · 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 an electrical conductor? (a) a skipping rope (b) a raincoat (c) an umbrella cover (d) a plug pin
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.True or false: a hair band needs a flexible material. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) rubber (b) steel (c) copper (d) aluminium
  5. 5.True or false: a switch contact needs a heat insulator. (a) True (b) False
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.Which of these needs a waterproof material? (a) a magnifier lens (b) a raincoat (c) a yoga mat (d) a skipping rope
  8. 8.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  10. 10.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  11. 11.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) brass (d) plastic
  12. 12.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  13. 13.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  14. 14.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a heat insulator? (a) a cooking pot handle (b) a raincoat (c) the core of a wire (d) a roof sheet
  16. 16.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  17. 17.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  18. 18.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🔍 Which is the odd one out? (a) dry wood (b) copper (c) iron (d) graphite
  20. 20.True or false: a water tank needs a transparent material. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) rubber (b) copper (c) dry wood (d) plastic
  22. 22.True or false: an oven glove needs a heat insulator. (a) False (b) True
  23. 23.Which of these needs a heat insulator? (a) a magnifier lens (b) a skipping rope (c) a tea flask lining (d) a boat hull
  24. 24.True or false: a boat hull needs a flexible material. (a) True (b) False
  25. 25.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  26. 26.Which of these needs an electrical conductor? (a) an umbrella cover (b) a raincoat (c) a switch contact (d) a tea flask lining
  27. 27.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  28. 28.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  30. 30.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  31. 31.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  32. 32.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  33. 33.True or false: a water tank needs a heat insulator. (a) False (b) True
  34. 34.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  35. 35.Which of these needs a flexible material? (a) a water tank (b) an oven glove (c) a hair band (d) a window pane
  36. 36.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  38. 38.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  39. 39.🔍 Which is the odd one out? (a) rubber (b) iron (c) plastic (d) glass
  40. 40.True or false: a magnifier lens needs an electrical conductor. (a) False (b) True

Answer key

  1. a plug pin
  2. a conductor
  3. True
  4. rubber
  5. False
  6. an insulator
  7. a raincoat
  8. a conductor
  9. waterproof
  10. flexible
  11. brass
  12. heat insulator
  13. flexible
  14. a conductor
  15. a cooking pot handle
  16. electrical conductor
  17. glass
  18. a conductor
  19. dry wood
  20. False
  21. copper
  22. True
  23. a tea flask lining
  24. False
  25. wood or plastic
  26. a switch contact
  27. flexible
  28. an insulator
  29. waterproof
  30. True
  31. copper
  32. heat insulator
  33. False
  34. transparent
  35. a hair band
  36. a conductor
  37. True
  38. transparent
  39. iron
  40. False

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