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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 945 · 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 magnifier lens needs a transparent material. (a) True (b) False
  2. 2.Which of these needs a transparent material? (a) a water tank (b) an oven glove (c) a cooking pot handle (d) a car windscreen
  3. 3.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  4. 4.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a window pane needs an electrical conductor. (a) True (b) False
  8. 8.Which of these needs a transparent material? (a) a magnifier lens (b) a raincoat (c) an umbrella cover (d) a switch contact
  9. 9.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: a water tank needs a flexible material. (a) True (b) False
  12. 12.True or false: a skipping rope needs a flexible material. (a) True (b) False
  13. 13.Which of these needs a heat insulator? (a) a water tank (b) a boat hull (c) a cooking pot handle (d) a spectacle lens
  14. 14.🧱 Which property matters most for a magnifier lens? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  15. 15.True or false: a yoga mat needs a flexible material. (a) False (b) True
  16. 16.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  19. 19.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  20. 20.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  21. 21.True or false: a window pane needs a transparent material. (a) True (b) False
  22. 22.True or false: a boat hull needs a waterproof material. (a) False (b) True
  23. 23.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  24. 24.True or false: a water tank needs a waterproof material. (a) True (b) False
  25. 25.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  26. 26.True or false: an oven glove needs a flexible material. (a) False (b) True
  27. 27.Which of these needs a heat insulator? (a) a hair band (b) an oven glove (c) a window pane (d) a switch contact
  28. 28.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🔍 Which is the odd one out? (a) aluminium (b) iron (c) copper (d) glass
  31. 31.True or false: a switch contact needs a flexible material. (a) True (b) False
  32. 32.Which of these needs a waterproof material? (a) a tea flask lining (b) a boat hull (c) a hair band (d) an oven glove
  33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) aluminium (d) steel
  34. 34.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  35. 35.True or false: an oven glove needs a heat insulator. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) plastic (d) steel
  37. 37.Which of these needs a flexible material? (a) a skipping rope (b) a magnifier lens (c) a roof sheet (d) a spectacle lens
  38. 38.Which of these needs an electrical conductor? (a) a hair band (b) a tea flask lining (c) a switch contact (d) a boat hull
  39. 39.🔍 Which is the odd one out? (a) graphite (b) steel (c) clay pottery (d) brass
  40. 40.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) waterproof (d) flexible

Answer key

  1. True
  2. a car windscreen
  3. copper
  4. a conductor
  5. glass
  6. an insulator
  7. False
  8. a magnifier lens
  9. a conductor
  10. an insulator
  11. False
  12. True
  13. a cooking pot handle
  14. transparent
  15. True
  16. False
  17. a conductor
  18. waterproof
  19. waterproof
  20. waterproof
  21. True
  22. True
  23. flexible
  24. True
  25. electrical conductor
  26. False
  27. an oven glove
  28. wood or plastic
  29. a conductor
  30. glass
  31. False
  32. a boat hull
  33. cotton cloth
  34. steel
  35. True
  36. plastic
  37. a skipping rope
  38. a switch contact
  39. clay pottery
  40. flexible

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