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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 581 · 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 is the odd one out? (a) cotton cloth (b) rubber (c) dry wood (d) steel
  2. 2.Which of these needs a flexible material? (a) a cooking pot handle (b) an umbrella cover (c) an oven glove (d) a skipping rope
  3. 3.Which of these needs a waterproof material? (a) an oven glove (b) a cooking pot handle (c) a boat hull (d) a magnifier lens
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  6. 6.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  7. 7.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  8. 8.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  9. 9.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  10. 10.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  11. 11.True or false: a raincoat needs a flexible material. (a) False (b) True
  12. 12.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🔍 Which is the odd one out? (a) glass (b) iron (c) copper (d) graphite
  14. 14.Which of these needs a flexible material? (a) a car windscreen (b) a spectacle lens (c) a yoga mat (d) a raincoat
  15. 15.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) rubber (d) aluminium
  16. 16.Which of these needs a heat insulator? (a) a roof sheet (b) a switch contact (c) a cooking pot handle (d) a car windscreen
  17. 17.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  18. 18.Which of these needs a flexible material? (a) an oven glove (b) a switch contact (c) a roof sheet (d) a car seat belt
  19. 19.🔍 Which is the odd one out? (a) brass (b) aluminium (c) copper (d) dry wood
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) cotton cloth (d) iron
  22. 22.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  23. 23.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  24. 24.Which of these needs a waterproof material? (a) a hair band (b) a spectacle lens (c) a window pane (d) a raincoat
  25. 25.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  26. 26.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  27. 27.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  28. 28.Which of these needs an electrical conductor? (a) a water tank (b) a yoga mat (c) a tea flask lining (d) the core of a wire
  29. 29.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.Which of these needs an electrical conductor? (a) a skipping rope (b) a yoga mat (c) a plug pin (d) an oven glove
  31. 31.🧱 Which property matters most for a spectacle lens? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  32. 32.Which of these needs a waterproof material? (a) a skipping rope (b) the core of a wire (c) a plug pin (d) a water tank
  33. 33.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  34. 34.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  35. 35.🧱 Which material is best for a window pane? (a) brick (b) wood (c) glass (d) steel
  36. 36.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  37. 37.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) iron (d) graphite
  40. 40.True or false: a spectacle lens needs a transparent material. (a) True (b) False

Answer key

  1. steel
  2. a skipping rope
  3. a boat hull
  4. a conductor
  5. electrical conductor
  6. True
  7. copper
  8. plastic-coated cloth
  9. wood or plastic
  10. transparent
  11. False
  12. an insulator
  13. glass
  14. a yoga mat
  15. aluminium
  16. a cooking pot handle
  17. True
  18. a car seat belt
  19. dry wood
  20. a conductor
  21. iron
  22. True
  23. True
  24. a raincoat
  25. waterproof
  26. electrical conductor
  27. waterproof
  28. the core of a wire
  29. an insulator
  30. a plug pin
  31. transparent
  32. a water tank
  33. False
  34. heat insulator
  35. glass
  36. flexible
  37. an insulator
  38. False
  39. rubber
  40. True

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