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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 886 · 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) plastic (b) graphite (c) dry wood (d) rubber
  2. 2.🧱 Which property matters most for a tea flask lining? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  3. 3.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  4. 4.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs a heat insulator? (a) a boat hull (b) a cooking pot handle (c) a water tank (d) a car seat belt
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  7. 7.True or false: the core of a wire needs a flexible material. (a) True (b) False
  8. 8.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  9. 9.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  10. 10.Which of these needs a transparent material? (a) a roof sheet (b) a window pane (c) a raincoat (d) a water tank
  11. 11.Which of these needs a flexible material? (a) an umbrella cover (b) a switch contact (c) a hair band (d) a boat hull
  12. 12.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) brass (d) dry wood
  13. 13.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  14. 14.Which of these needs an electrical conductor? (a) an umbrella cover (b) the core of a wire (c) a car windscreen (d) a magnifier lens
  15. 15.Which of these needs an electrical conductor? (a) a skipping rope (b) a tea flask lining (c) a plug pin (d) a boat hull
  16. 16.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  17. 17.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs a waterproof material? (a) a car seat belt (b) a boat hull (c) a hair band (d) a switch contact
  20. 20.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  21. 21.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  22. 22.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  23. 23.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  24. 24.Which of these needs a transparent material? (a) an oven glove (b) a car windscreen (c) a roof sheet (d) a yoga mat
  25. 25.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  26. 26.True or false: a boat hull needs a flexible material. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) iron (b) steel (c) clay pottery (d) aluminium
  28. 28.Which of these needs a waterproof material? (a) a plug pin (b) a raincoat (c) a skipping rope (d) a switch contact
  29. 29.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  30. 30.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  31. 31.🔍 Which is the odd one out? (a) brass (b) copper (c) graphite (d) glass
  32. 32.True or false: a switch contact needs a transparent material. (a) True (b) False
  33. 33.True or false: a window pane needs an electrical conductor. (a) False (b) True
  34. 34.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) rubber (d) copper
  36. 36.True or false: a car seat belt needs a flexible material. (a) True (b) False
  37. 37.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  40. 40.Which of these needs a heat insulator? (a) a switch contact (b) a car seat belt (c) an oven glove (d) a yoga mat

Answer key

  1. graphite
  2. heat insulator
  3. waterproof
  4. a conductor
  5. a cooking pot handle
  6. steel
  7. False
  8. False
  9. flexible
  10. a window pane
  11. a hair band
  12. brass
  13. flexible
  14. the core of a wire
  15. a plug pin
  16. copper
  17. True
  18. a conductor
  19. a boat hull
  20. plastic-coated cloth
  21. False
  22. waterproof
  23. electrical conductor
  24. a car windscreen
  25. glass
  26. False
  27. clay pottery
  28. a raincoat
  29. waterproof
  30. wood or plastic
  31. glass
  32. False
  33. False
  34. a conductor
  35. copper
  36. True
  37. an insulator
  38. an insulator
  39. True
  40. an oven glove

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