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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 119 · 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 a flexible material? (a) a skipping rope (b) a plug pin (c) the core of a wire (d) a boat hull
  2. 2.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  3. 3.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  4. 4.🔍 Which is the odd one out? (a) copper (b) brass (c) graphite (d) clay pottery
  5. 5.Which of these needs a flexible material? (a) a raincoat (b) a switch contact (c) a spectacle lens (d) a hair band
  6. 6.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  7. 7.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  8. 8.🔍 Which is the odd one out? (a) steel (b) copper (c) aluminium (d) cotton cloth
  9. 9.Which of these needs a heat insulator? (a) a spectacle lens (b) an oven glove (c) a plug pin (d) a hair band
  10. 10.Which of these needs a heat insulator? (a) a switch contact (b) a hair band (c) a tea flask lining (d) a yoga mat
  11. 11.🔍 Which is the odd one out? (a) glass (b) copper (c) iron (d) steel
  12. 12.Which of these needs a heat insulator? (a) a plug pin (b) a skipping rope (c) a raincoat (d) a cooking pot handle
  13. 13.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  14. 14.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  15. 15.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  16. 16.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  17. 17.Which of these needs an electrical conductor? (a) a car seat belt (b) an umbrella cover (c) the core of a wire (d) a hair band
  18. 18.Which of these needs a flexible material? (a) a boat hull (b) a car seat belt (c) a roof sheet (d) a plug pin
  19. 19.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  20. 20.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  21. 21.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  23. 23.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  24. 24.Which of these needs an electrical conductor? (a) a hair band (b) a car windscreen (c) a plug pin (d) a spectacle lens
  25. 25.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  26. 26.True or false: a car windscreen needs a transparent material. (a) False (b) True
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🔍 Which is the odd one out? (a) plastic (b) steel (c) iron (d) copper
  30. 30.Which of these needs a waterproof material? (a) a switch contact (b) a magnifier lens (c) a boat hull (d) a car seat belt
  31. 31.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) dry wood (d) aluminium
  32. 32.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs a transparent material? (a) a hair band (b) an oven glove (c) a yoga mat (d) a spectacle lens
  35. 35.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  36. 36.🔍 Which is the odd one out? (a) rubber (b) brass (c) graphite (d) copper
  37. 37.True or false: a boat hull needs a heat insulator. (a) True (b) False
  38. 38.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  40. 40.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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