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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 848 · 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 car windscreen? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  2. 2.Which of these needs a transparent material? (a) a boat hull (b) a hair band (c) a car windscreen (d) a raincoat
  3. 3.True or false: a raincoat needs a transparent material. (a) True (b) False
  4. 4.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  5. 5.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  7. 7.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  10. 10.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  11. 11.True or false: a hair band needs a flexible material. (a) True (b) False
  12. 12.True or false: a water tank needs a flexible material. (a) True (b) False
  13. 13.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  14. 14.🧱 Which property matters most for a car seat belt? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  15. 15.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  18. 18.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs a transparent material? (a) a car seat belt (b) an umbrella cover (c) an oven glove (d) a magnifier lens
  20. 20.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  21. 21.🔍 Which is the odd one out? (a) brass (b) aluminium (c) copper (d) dry wood
  22. 22.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  23. 23.Which of these needs a flexible material? (a) an umbrella cover (b) a car seat belt (c) a tea flask lining (d) a plug pin
  24. 24.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  25. 25.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  26. 26.True or false: a window pane needs a transparent material. (a) True (b) False
  27. 27.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  28. 28.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) steel (d) graphite
  29. 29.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  30. 30.Which of these needs a waterproof material? (a) a window pane (b) an umbrella cover (c) a car windscreen (d) a yoga mat
  31. 31.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  32. 32.🔍 Which is the odd one out? (a) graphite (b) copper (c) brass (d) clay pottery
  33. 33.🔍 Which is the odd one out? (a) aluminium (b) iron (c) rubber (d) steel
  34. 34.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) iron (d) rubber
  35. 35.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  36. 36.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a transparent material? (a) a plug pin (b) a window pane (c) a hair band (d) the core of a wire
  38. 38.Which of these needs a waterproof material? (a) a window pane (b) a tea flask lining (c) a spectacle lens (d) a boat hull
  39. 39.Which of these needs a heat insulator? (a) a raincoat (b) a plug pin (c) a cooking pot handle (d) a car seat belt
  40. 40.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. transparent
  2. a car windscreen
  3. False
  4. False
  5. a conductor
  6. electrical conductor
  7. an insulator
  8. a conductor
  9. copper
  10. wood or plastic
  11. True
  12. False
  13. heat insulator
  14. flexible
  15. False
  16. a conductor
  17. False
  18. an insulator
  19. a magnifier lens
  20. transparent
  21. dry wood
  22. glass
  23. a car seat belt
  24. True
  25. waterproof
  26. True
  27. waterproof
  28. cotton cloth
  29. plastic-coated cloth
  30. an umbrella cover
  31. waterproof
  32. clay pottery
  33. rubber
  34. iron
  35. False
  36. a conductor
  37. a window pane
  38. a boat hull
  39. a cooking pot handle
  40. a conductor

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