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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 369 · 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 property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  2. 2.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) steel (d) copper
  3. 3.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.Which of these needs a flexible material? (a) the core of a wire (b) a yoga mat (c) a window pane (d) a car windscreen
  5. 5.Which of these needs a heat insulator? (a) a skipping rope (b) a spectacle lens (c) an umbrella cover (d) a cooking pot handle
  6. 6.True or false: an oven glove needs a heat insulator. (a) False (b) True
  7. 7.Which of these needs a waterproof material? (a) an umbrella cover (b) a car seat belt (c) a tea flask lining (d) a hair band
  8. 8.Which of these needs an electrical conductor? (a) an umbrella cover (b) a cooking pot handle (c) a plug pin (d) a roof sheet
  9. 9.Which of these needs a waterproof material? (a) a boat hull (b) a tea flask lining (c) a plug pin (d) a hair band
  10. 10.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  11. 11.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  13. 13.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) graphite (d) steel
  14. 14.🔍 Which is the odd one out? (a) iron (b) rubber (c) brass (d) steel
  15. 15.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  16. 16.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  17. 17.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  19. 19.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  20. 20.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) steel (b) brass (c) graphite (d) dry wood
  22. 22.🧱 Which property matters most for a car windscreen? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  23. 23.Which of these needs a transparent material? (a) a plug pin (b) a roof sheet (c) a car windscreen (d) a car seat belt
  24. 24.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  25. 25.Which of these needs a transparent material? (a) a hair band (b) a spectacle lens (c) a plug pin (d) a skipping rope
  26. 26.Which of these needs a waterproof material? (a) a hair band (b) a yoga mat (c) a water tank (d) a car windscreen
  27. 27.Which of these needs a transparent material? (a) an umbrella cover (b) a window pane (c) a tea flask lining (d) the core of a wire
  28. 28.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) clay pottery (d) aluminium
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.Which of these needs an electrical conductor? (a) an umbrella cover (b) a car windscreen (c) a window pane (d) a switch contact
  31. 31.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.Which of these needs a flexible material? (a) a hair band (b) an oven glove (c) a magnifier lens (d) a boat hull
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.True or false: a roof sheet needs a flexible material. (a) False (b) True
  35. 35.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  36. 36.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  37. 37.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) rubber (d) graphite
  38. 38.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  39. 39.Which of these needs a heat insulator? (a) a window pane (b) a tea flask lining (c) a yoga mat (d) a hair band
  40. 40.True or false: a car windscreen needs a transparent material. (a) False (b) True

Answer key

  1. flexible
  2. clay pottery
  3. a conductor
  4. a yoga mat
  5. a cooking pot handle
  6. True
  7. an umbrella cover
  8. a plug pin
  9. a boat hull
  10. electrical conductor
  11. an insulator
  12. steel
  13. cotton cloth
  14. rubber
  15. transparent
  16. False
  17. a conductor
  18. copper
  19. glass
  20. a conductor
  21. dry wood
  22. transparent
  23. a car windscreen
  24. plastic-coated cloth
  25. a spectacle lens
  26. a water tank
  27. a window pane
  28. aluminium
  29. a conductor
  30. a switch contact
  31. an insulator
  32. a hair band
  33. an insulator
  34. False
  35. waterproof
  36. wood or plastic
  37. graphite
  38. waterproof
  39. a tea flask lining
  40. True

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