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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 648 · 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 tea flask lining? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  4. 4.Which of these needs a transparent material? (a) a spectacle lens (b) an umbrella cover (c) a roof sheet (d) a raincoat
  5. 5.🔍 Which is the odd one out? (a) graphite (b) steel (c) iron (d) glass
  6. 6.Which of these needs a flexible material? (a) a boat hull (b) a cooking pot handle (c) a water tank (d) a hair band
  7. 7.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) copper (d) plastic
  8. 8.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  9. 9.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.Which of these needs a waterproof material? (a) an oven glove (b) a raincoat (c) a switch contact (d) a yoga mat
  11. 11.True or false: a hair band needs a transparent material. (a) False (b) True
  12. 12.True or false: a raincoat needs a waterproof material. (a) True (b) False
  13. 13.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) graphite (b) glass (c) rubber (d) dry wood
  15. 15.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  16. 16.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  17. 17.True or false: a boat hull needs a transparent material. (a) True (b) False
  18. 18.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs a transparent material? (a) a water tank (b) a skipping rope (c) a window pane (d) a hair band
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: an oven glove needs a transparent material. (a) False (b) True
  22. 22.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) clay pottery (d) iron
  23. 23.Which of these needs a heat insulator? (a) a tea flask lining (b) the core of a wire (c) a spectacle lens (d) a raincoat
  24. 24.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) brass (b) aluminium (c) rubber (d) graphite
  26. 26.True or false: a car seat belt needs a flexible material. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) cotton cloth (d) steel
  28. 28.Which of these needs a waterproof material? (a) a switch contact (b) a plug pin (c) a tea flask lining (d) a water tank
  29. 29.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🔍 Which is the odd one out? (a) graphite (b) steel (c) aluminium (d) cotton cloth
  31. 31.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  32. 32.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  33. 33.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  34. 34.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  35. 35.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  36. 36.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  37. 37.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  38. 38.Which of these needs an electrical conductor? (a) a yoga mat (b) a skipping rope (c) a plug pin (d) a water tank
  39. 39.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  40. 40.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor

Answer key

  1. heat insulator
  2. a conductor
  3. glass
  4. a spectacle lens
  5. glass
  6. a hair band
  7. copper
  8. heat insulator
  9. a conductor
  10. a raincoat
  11. False
  12. True
  13. False
  14. graphite
  15. plastic-coated cloth
  16. True
  17. False
  18. a conductor
  19. a window pane
  20. an insulator
  21. False
  22. iron
  23. a tea flask lining
  24. False
  25. rubber
  26. True
  27. steel
  28. a water tank
  29. a conductor
  30. cotton cloth
  31. waterproof
  32. transparent
  33. waterproof
  34. waterproof
  35. flexible
  36. True
  37. False
  38. a plug pin
  39. False
  40. transparent

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