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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 428 · 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 skipping rope needs a flexible material. (a) True (b) False
  2. 2.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  3. 3.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  4. 4.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  5. 5.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  7. 7.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) clay pottery (d) iron
  9. 9.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  10. 10.Which of these needs a waterproof material? (a) a switch contact (b) the core of a wire (c) a raincoat (d) a car seat belt
  11. 11.Which of these needs a flexible material? (a) a magnifier lens (b) a spectacle lens (c) an umbrella cover (d) a hair band
  12. 12.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  13. 13.🔍 Which is the odd one out? (a) graphite (b) brass (c) plastic (d) copper
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs a transparent material? (a) an oven glove (b) a magnifier lens (c) an umbrella cover (d) a hair band
  16. 16.Which of these needs a waterproof material? (a) a magnifier lens (b) a spectacle lens (c) a cooking pot handle (d) a boat hull
  17. 17.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  18. 18.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) aluminium (b) steel (c) cotton cloth (d) copper
  21. 21.Which of these needs an electrical conductor? (a) a car windscreen (b) a magnifier lens (c) a switch contact (d) a skipping rope
  22. 22.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  23. 23.🔍 Which is the odd one out? (a) copper (b) aluminium (c) rubber (d) brass
  24. 24.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  25. 25.True or false: a water tank needs a heat insulator. (a) False (b) True
  26. 26.True or false: a car seat belt needs a transparent material. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) brass (c) rubber (d) cotton cloth
  28. 28.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: a yoga mat needs a flexible material. (a) True (b) False
  31. 31.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  32. 32.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  33. 33.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  34. 34.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  35. 35.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  36. 36.True or false: a boat hull needs a heat insulator. (a) True (b) False
  37. 37.Which of these needs an electrical conductor? (a) a yoga mat (b) the core of a wire (c) a cooking pot handle (d) a raincoat
  38. 38.True or false: a hair band needs a heat insulator. (a) False (b) True
  39. 39.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Which property matters most for a window pane? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent

Answer key

  1. True
  2. glass
  3. plastic-coated cloth
  4. waterproof
  5. a conductor
  6. steel
  7. False
  8. iron
  9. False
  10. a raincoat
  11. a hair band
  12. heat insulator
  13. plastic
  14. a conductor
  15. a magnifier lens
  16. a boat hull
  17. waterproof
  18. a conductor
  19. True
  20. cotton cloth
  21. a switch contact
  22. copper
  23. rubber
  24. True
  25. False
  26. False
  27. brass
  28. a conductor
  29. an insulator
  30. True
  31. transparent
  32. wood or plastic
  33. True
  34. True
  35. waterproof
  36. False
  37. the core of a wire
  38. False
  39. an insulator
  40. transparent

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