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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 816 · 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) brass (b) graphite (c) iron (d) plastic
  2. 2.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  3. 3.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  5. 5.🧱 Which property matters most for a raincoat? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  6. 6.Which of these needs a flexible material? (a) a cooking pot handle (b) a hair band (c) a magnifier lens (d) a car windscreen
  7. 7.True or false: a water tank needs a heat insulator. (a) False (b) True
  8. 8.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  9. 9.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  10. 10.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  11. 11.True or false: a water tank needs a flexible material. (a) True (b) False
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🔍 Which is the odd one out? (a) brass (b) copper (c) cotton cloth (d) aluminium
  14. 14.True or false: a plug pin needs a flexible material. (a) True (b) False
  15. 15.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.True or false: an oven glove needs a heat insulator. (a) False (b) True
  17. 17.True or false: an oven glove needs a flexible material. (a) True (b) False
  18. 18.🧱 Which property matters most for a spectacle lens? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  19. 19.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  20. 20.Which of these needs a heat insulator? (a) a skipping rope (b) a cooking pot handle (c) a yoga mat (d) a magnifier lens
  21. 21.True or false: a yoga mat needs a flexible material. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) steel (b) brass (c) dry wood (d) graphite
  23. 23.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  25. 25.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) rubber (d) iron
  27. 27.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  28. 28.Which of these needs a flexible material? (a) a boat hull (b) a skipping rope (c) a plug pin (d) a cooking pot handle
  29. 29.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  30. 30.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) aluminium (d) rubber
  33. 33.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  34. 34.Which of these needs an electrical conductor? (a) a boat hull (b) the core of a wire (c) a hair band (d) a roof sheet
  35. 35.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.True or false: a boat hull needs a waterproof material. (a) False (b) True
  38. 38.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  39. 39.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  40. 40.Which of these needs a flexible material? (a) a car seat belt (b) a magnifier lens (c) a plug pin (d) a tea flask lining

Answer key

  1. plastic
  2. True
  3. an insulator
  4. True
  5. waterproof
  6. a hair band
  7. False
  8. False
  9. flexible
  10. waterproof
  11. False
  12. a conductor
  13. cotton cloth
  14. False
  15. a conductor
  16. True
  17. False
  18. transparent
  19. steel
  20. a cooking pot handle
  21. True
  22. dry wood
  23. an insulator
  24. flexible
  25. an insulator
  26. iron
  27. False
  28. a skipping rope
  29. copper
  30. a conductor
  31. True
  32. aluminium
  33. glass
  34. the core of a wire
  35. a conductor
  36. an insulator
  37. True
  38. False
  39. False
  40. a car seat belt

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