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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 459 · 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 steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  3. 3.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  4. 4.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  5. 5.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) aluminium (d) glass
  7. 7.Which of these needs a waterproof material? (a) a water tank (b) the core of a wire (c) a magnifier lens (d) a yoga mat
  8. 8.True or false: an oven glove needs a heat insulator. (a) True (b) False
  9. 9.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  10. 10.Which of these needs a flexible material? (a) a raincoat (b) a switch contact (c) a water tank (d) a hair band
  11. 11.🔍 Which is the odd one out? (a) copper (b) glass (c) aluminium (d) graphite
  12. 12.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) glass (d) rubber
  16. 16.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  17. 17.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  19. 19.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  20. 20.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  21. 21.🔍 Which is the odd one out? (a) graphite (b) iron (c) steel (d) dry wood
  22. 22.True or false: a yoga mat needs a flexible material. (a) False (b) True
  23. 23.Which of these needs a waterproof material? (a) the core of a wire (b) a raincoat (c) a car seat belt (d) a hair band
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.Which of these needs a flexible material? (a) a car seat belt (b) a cooking pot handle (c) an oven glove (d) the core of a wire
  26. 26.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  31. 31.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  32. 32.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.Which of these needs an electrical conductor? (a) a boat hull (b) an umbrella cover (c) a switch contact (d) a window pane
  34. 34.🔍 Which is the odd one out? (a) plastic (b) rubber (c) glass (d) steel
  35. 35.Which of these needs an electrical conductor? (a) a hair band (b) a raincoat (c) a plug pin (d) a spectacle lens
  36. 36.Which of these needs a heat insulator? (a) a plug pin (b) a spectacle lens (c) an oven glove (d) a boat hull
  37. 37.True or false: an oven glove needs a flexible material. (a) False (b) True
  38. 38.Which of these needs a waterproof material? (a) a roof sheet (b) an oven glove (c) a car windscreen (d) a yoga mat
  39. 39.🔍 Which is the odd one out? (a) steel (b) aluminium (c) brass (d) clay pottery
  40. 40.True or false: a car windscreen needs a heat insulator. (a) True (b) False

Answer key

  1. a conductor
  2. electrical conductor
  3. True
  4. copper
  5. a conductor
  6. aluminium
  7. a water tank
  8. True
  9. flexible
  10. a hair band
  11. glass
  12. steel
  13. an insulator
  14. a conductor
  15. iron
  16. flexible
  17. an insulator
  18. transparent
  19. glass
  20. transparent
  21. dry wood
  22. True
  23. a raincoat
  24. an insulator
  25. a car seat belt
  26. a conductor
  27. plastic-coated cloth
  28. an insulator
  29. a conductor
  30. heat insulator
  31. wood or plastic
  32. an insulator
  33. a switch contact
  34. steel
  35. a plug pin
  36. an oven glove
  37. False
  38. a roof sheet
  39. clay pottery
  40. False

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