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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 844 · 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 a waterproof material? (a) a boat hull (b) a skipping rope (c) a tea flask lining (d) a yoga mat
  2. 2.🔍 Which is the odd one out? (a) iron (b) glass (c) rubber (d) cotton cloth
  3. 3.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  4. 4.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  6. 6.True or false: a boat hull needs a flexible material. (a) True (b) False
  7. 7.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  8. 8.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  9. 9.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  11. 11.True or false: a raincoat needs a waterproof material. (a) False (b) True
  12. 12.🧱 Which property matters most for a hair band? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  13. 13.Which of these needs a waterproof material? (a) a car windscreen (b) a skipping rope (c) a raincoat (d) a magnifier lens
  14. 14.Which of these needs a transparent material? (a) a roof sheet (b) a yoga mat (c) an umbrella cover (d) a spectacle lens
  15. 15.Which of these needs a waterproof material? (a) a switch contact (b) a cooking pot handle (c) a yoga mat (d) a water tank
  16. 16.Which of these needs a heat insulator? (a) a roof sheet (b) an oven glove (c) a water tank (d) a yoga mat
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) brass (d) steel
  18. 18.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) glass (d) plastic
  19. 19.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) steel (d) copper
  21. 21.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  22. 22.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  23. 23.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  24. 24.True or false: an oven glove needs an electrical conductor. (a) True (b) False
  25. 25.Which of these needs a heat insulator? (a) a tea flask lining (b) a car windscreen (c) a magnifier lens (d) a boat hull
  26. 26.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  27. 27.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.Which of these needs a flexible material? (a) a car windscreen (b) a hair band (c) a window pane (d) a spectacle lens
  29. 29.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  30. 30.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  31. 31.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  32. 32.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.Which of these needs a transparent material? (a) a roof sheet (b) a boat hull (c) a window pane (d) an oven glove
  34. 34.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  35. 35.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  36. 36.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  37. 37.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  38. 38.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  40. 40.🧱 Which property matters most for a yoga mat? (a) waterproof (b) transparent (c) electrical conductor (d) flexible

Answer key

  1. a boat hull
  2. iron
  3. electrical conductor
  4. an insulator
  5. transparent
  6. False
  7. transparent
  8. False
  9. a conductor
  10. False
  11. True
  12. flexible
  13. a raincoat
  14. a spectacle lens
  15. a water tank
  16. an oven glove
  17. rubber
  18. aluminium
  19. True
  20. dry wood
  21. flexible
  22. True
  23. plastic-coated cloth
  24. False
  25. a tea flask lining
  26. False
  27. a conductor
  28. a hair band
  29. waterproof
  30. heat insulator
  31. wood or plastic
  32. a conductor
  33. a window pane
  34. waterproof
  35. waterproof
  36. True
  37. copper
  38. a conductor
  39. waterproof
  40. flexible

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