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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 720 · 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 an electrical conductor? (a) a car windscreen (b) a spectacle lens (c) an oven glove (d) the core of a wire
  2. 2.🔍 Which is the odd one out? (a) brass (b) graphite (c) plastic (d) copper
  3. 3.True or false: a skipping rope needs a flexible material. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) brass (b) glass (c) copper (d) iron
  5. 5.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.Which of these needs a waterproof material? (a) a yoga mat (b) a boat hull (c) a magnifier lens (d) a tea flask lining
  8. 8.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.Which of these needs an electrical conductor? (a) a switch contact (b) a skipping rope (c) a cooking pot handle (d) a hair band
  10. 10.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  11. 11.Which of these needs a heat insulator? (a) a window pane (b) an oven glove (c) a car seat belt (d) a magnifier lens
  12. 12.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  13. 13.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a car seat belt? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  15. 15.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  16. 16.Which of these needs a transparent material? (a) a window pane (b) a water tank (c) an umbrella cover (d) a roof sheet
  17. 17.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) rubber (d) glass
  18. 18.🔍 Which is the odd one out? (a) copper (b) brass (c) aluminium (d) clay pottery
  19. 19.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) cotton cloth (d) brass
  21. 21.🔍 Which is the odd one out? (a) iron (b) steel (c) cotton cloth (d) aluminium
  22. 22.Which of these needs a heat insulator? (a) a skipping rope (b) a tea flask lining (c) a hair band (d) a window pane
  23. 23.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  24. 24.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  25. 25.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  26. 26.True or false: an oven glove needs a waterproof material. (a) False (b) True
  27. 27.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  28. 28.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  29. 29.Which of these needs a transparent material? (a) a skipping rope (b) a spectacle lens (c) a boat hull (d) a yoga mat
  30. 30.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  31. 31.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  32. 32.Which of these needs an electrical conductor? (a) a plug pin (b) a hair band (c) a car seat belt (d) a cooking pot handle
  33. 33.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  34. 34.True or false: a plug pin needs a waterproof material. (a) False (b) True
  35. 35.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which property matters most for a hair band? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  37. 37.🔍 Which is the odd one out? (a) iron (b) aluminium (c) rubber (d) copper
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.True or false: an oven glove needs a heat insulator. (a) False (b) True
  40. 40.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof

Answer key

  1. the core of a wire
  2. plastic
  3. True
  4. glass
  5. copper
  6. a conductor
  7. a boat hull
  8. an insulator
  9. a switch contact
  10. True
  11. an oven glove
  12. plastic-coated cloth
  13. a conductor
  14. flexible
  15. False
  16. a window pane
  17. aluminium
  18. clay pottery
  19. an insulator
  20. brass
  21. cotton cloth
  22. a tea flask lining
  23. heat insulator
  24. transparent
  25. False
  26. False
  27. True
  28. steel
  29. a spectacle lens
  30. glass
  31. False
  32. a plug pin
  33. wood or plastic
  34. False
  35. a conductor
  36. flexible
  37. rubber
  38. a conductor
  39. True
  40. electrical conductor

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