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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 779 · 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.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a hair band needs a transparent material. (a) True (b) False
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) steel (c) brass (d) clay pottery
  4. 4.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  5. 5.Which of these needs an electrical conductor? (a) a raincoat (b) an umbrella cover (c) the core of a wire (d) a cooking pot handle
  6. 6.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  7. 7.🔍 Which is the odd one out? (a) copper (b) graphite (c) brass (d) rubber
  8. 8.🔍 Which is the odd one out? (a) copper (b) plastic (c) aluminium (d) graphite
  9. 9.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.Which of these needs a flexible material? (a) an umbrella cover (b) a hair band (c) a car windscreen (d) a cooking pot handle
  11. 11.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  12. 12.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  13. 13.Which of these needs a waterproof material? (a) a water tank (b) a plug pin (c) a hair band (d) an oven glove
  14. 14.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  15. 15.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  16. 16.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.True or false: a boat hull needs a flexible material. (a) True (b) False
  18. 18.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  19. 19.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) copper (d) graphite
  20. 20.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  21. 21.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  24. 24.🧱 Which property matters most for a yoga mat? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  25. 25.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  26. 26.True or false: a window pane needs a transparent material. (a) True (b) False
  27. 27.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  28. 28.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  29. 29.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  30. 30.True or false: an oven glove needs a waterproof material. (a) True (b) False
  31. 31.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  32. 32.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  33. 33.True or false: a skipping rope needs a flexible material. (a) False (b) True
  34. 34.True or false: a yoga mat needs a flexible material. (a) True (b) False
  35. 35.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) plastic (b) rubber (c) copper (d) dry wood
  38. 38.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  40. 40.Which of these needs a waterproof material? (a) a tea flask lining (b) a yoga mat (c) a window pane (d) a roof sheet

Answer key

  1. a conductor
  2. False
  3. clay pottery
  4. False
  5. the core of a wire
  6. steel
  7. rubber
  8. plastic
  9. a conductor
  10. a hair band
  11. waterproof
  12. flexible
  13. a water tank
  14. copper
  15. transparent
  16. a conductor
  17. False
  18. heat insulator
  19. cotton cloth
  20. True
  21. waterproof
  22. a conductor
  23. True
  24. flexible
  25. flexible
  26. True
  27. electrical conductor
  28. glass
  29. plastic-coated cloth
  30. False
  31. True
  32. wood or plastic
  33. True
  34. True
  35. a conductor
  36. an insulator
  37. copper
  38. an insulator
  39. False
  40. a roof sheet

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