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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 562 · 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 waterproof material? (a) a spectacle lens (b) a car seat belt (c) a hair band (d) an umbrella cover
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a boat hull (d) a spectacle lens
  4. 4.Which of these needs a flexible material? (a) a roof sheet (b) a magnifier lens (c) a hair band (d) a cooking pot handle
  5. 5.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  6. 6.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  7. 7.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  8. 8.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  9. 9.🔍 Which is the odd one out? (a) rubber (b) copper (c) graphite (d) brass
  10. 10.🔍 Which is the odd one out? (a) dry wood (b) glass (c) cotton cloth (d) aluminium
  11. 11.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) cotton cloth (d) rubber
  12. 12.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  13. 13.Which of these needs a flexible material? (a) a plug pin (b) a skipping rope (c) a roof sheet (d) an oven glove
  14. 14.Which of these needs a transparent material? (a) an oven glove (b) a spectacle lens (c) a raincoat (d) a skipping rope
  15. 15.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.Which of these needs a waterproof material? (a) a water tank (b) a skipping rope (c) a plug pin (d) a car seat belt
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  21. 21.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  22. 22.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) iron (b) steel (c) copper (d) glass
  24. 24.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  25. 25.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  26. 26.Which of these needs an electrical conductor? (a) a roof sheet (b) a car seat belt (c) a switch contact (d) a car windscreen
  27. 27.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: a boat hull needs a transparent material. (a) True (b) False
  29. 29.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  31. 31.🧱 Which property matters most for a switch contact? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  32. 32.🧱 Which property matters most for a magnifier lens? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  33. 33.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  34. 34.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  35. 35.Which of these needs a heat insulator? (a) the core of a wire (b) a tea flask lining (c) a yoga mat (d) a window pane
  36. 36.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  37. 37.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a waterproof material? (a) the core of a wire (b) a raincoat (c) a skipping rope (d) a switch contact
  39. 39.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) dry wood (d) steel
  40. 40.True or false: a raincoat needs an electrical conductor. (a) True (b) False

Answer key

  1. an umbrella cover
  2. a conductor
  3. the core of a wire
  4. a hair band
  5. True
  6. plastic-coated cloth
  7. wood or plastic
  8. electrical conductor
  9. rubber
  10. aluminium
  11. copper
  12. copper
  13. a skipping rope
  14. a spectacle lens
  15. a conductor
  16. waterproof
  17. a conductor
  18. a water tank
  19. an insulator
  20. glass
  21. heat insulator
  22. True
  23. glass
  24. False
  25. heat insulator
  26. a switch contact
  27. an insulator
  28. False
  29. an insulator
  30. waterproof
  31. electrical conductor
  32. transparent
  33. flexible
  34. False
  35. a tea flask lining
  36. transparent
  37. an insulator
  38. a raincoat
  39. steel
  40. False

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