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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 847 · 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 window pane? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  2. 2.🔍 Which is the odd one out? (a) dry wood (b) steel (c) glass (d) cotton cloth
  3. 3.Which of these needs a waterproof material? (a) a water tank (b) a plug pin (c) a window pane (d) a tea flask lining
  4. 4.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  5. 5.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  6. 6.Which of these needs a waterproof material? (a) a spectacle lens (b) a raincoat (c) a car windscreen (d) a yoga mat
  7. 7.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  8. 8.🧱 Which property matters most for a switch contact? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  9. 9.🔍 Which is the odd one out? (a) steel (b) rubber (c) aluminium (d) graphite
  10. 10.True or false: a water tank needs a heat insulator. (a) True (b) False
  11. 11.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  12. 12.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  13. 13.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  14. 14.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  15. 15.Which of these needs a heat insulator? (a) a tea flask lining (b) a window pane (c) an umbrella cover (d) the core of a wire
  16. 16.🔍 Which is the odd one out? (a) steel (b) copper (c) aluminium (d) plastic
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) iron (c) copper (d) dry wood
  18. 18.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  19. 19.🧱 Which property matters most for an umbrella cover? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  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) dry wood (b) aluminium (c) cotton cloth (d) glass
  22. 22.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a boat hull (c) an umbrella cover (d) a switch contact
  23. 23.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) iron (d) dry wood
  24. 24.Which of these needs a waterproof material? (a) a yoga mat (b) a cooking pot handle (c) a boat hull (d) the core of a wire
  25. 25.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) graphite (d) steel
  27. 27.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  28. 28.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  29. 29.Which of these needs a flexible material? (a) a switch contact (b) a magnifier lens (c) a boat hull (d) a car seat belt
  30. 30.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: a hair band needs an electrical conductor. (a) True (b) False
  32. 32.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  35. 35.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  37. 37.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  38. 38.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  39. 39.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  40. 40.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent

Answer key

  1. transparent
  2. steel
  3. a water tank
  4. steel
  5. waterproof
  6. a raincoat
  7. heat insulator
  8. electrical conductor
  9. rubber
  10. False
  11. heat insulator
  12. heat insulator
  13. waterproof
  14. copper
  15. a tea flask lining
  16. plastic
  17. dry wood
  18. plastic-coated cloth
  19. waterproof
  20. a conductor
  21. aluminium
  22. a switch contact
  23. iron
  24. a boat hull
  25. an insulator
  26. clay pottery
  27. True
  28. waterproof
  29. a car seat belt
  30. a conductor
  31. False
  32. a conductor
  33. a conductor
  34. flexible
  35. a conductor
  36. flexible
  37. True
  38. wood or plastic
  39. True
  40. transparent

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