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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 563 · 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 aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) copper (d) clay pottery
  3. 3.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  4. 4.🔍 Which is the odd one out? (a) steel (b) plastic (c) copper (d) brass
  5. 5.🧱 Which property matters most for a yoga mat? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  6. 6.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  7. 7.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  10. 10.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  11. 11.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  12. 12.True or false: a raincoat needs a waterproof material. (a) False (b) True
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a transparent material? (a) a car windscreen (b) a water tank (c) the core of a wire (d) a cooking pot handle
  16. 16.True or false: a window pane needs an electrical conductor. (a) True (b) False
  17. 17.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🔍 Which is the odd one out? (a) graphite (b) copper (c) clay pottery (d) aluminium
  19. 19.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  20. 20.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) rubber (d) brass
  21. 21.Which of these needs an electrical conductor? (a) a plug pin (b) a raincoat (c) a hair band (d) a magnifier lens
  22. 22.Which of these needs a heat insulator? (a) a car seat belt (b) an umbrella cover (c) a plug pin (d) an oven glove
  23. 23.True or false: an oven glove needs a heat insulator. (a) True (b) False
  24. 24.Which of these needs a transparent material? (a) a car seat belt (b) a boat hull (c) a plug pin (d) a window pane
  25. 25.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  26. 26.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  27. 27.True or false: an oven glove needs a flexible material. (a) True (b) False
  28. 28.Which of these needs a heat insulator? (a) a hair band (b) a spectacle lens (c) a window pane (d) a cooking pot handle
  29. 29.True or false: a boat hull needs a heat insulator. (a) True (b) False
  30. 30.True or false: a raincoat needs a flexible material. (a) True (b) False
  31. 31.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  33. 33.🧱 Which property matters most for a window pane? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  34. 34.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  35. 35.Which of these needs a transparent material? (a) a spectacle lens (b) an umbrella cover (c) a boat hull (d) a plug pin
  36. 36.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  37. 37.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  38. 38.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) glass (d) clay pottery
  39. 39.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  40. 40.🧱 Which property matters most for a magnifier lens? (a) transparent (b) waterproof (c) flexible (d) heat insulator

Answer key

  1. a conductor
  2. copper
  3. steel
  4. plastic
  5. flexible
  6. copper
  7. an insulator
  8. an insulator
  9. heat insulator
  10. electrical conductor
  11. electrical conductor
  12. True
  13. a conductor
  14. a conductor
  15. a car windscreen
  16. False
  17. a conductor
  18. clay pottery
  19. glass
  20. brass
  21. a plug pin
  22. an oven glove
  23. True
  24. a window pane
  25. wood or plastic
  26. False
  27. False
  28. a cooking pot handle
  29. False
  30. False
  31. an insulator
  32. plastic-coated cloth
  33. transparent
  34. transparent
  35. a spectacle lens
  36. True
  37. waterproof
  38. aluminium
  39. transparent
  40. transparent

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