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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 222 · 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 heat insulator? (a) a plug pin (b) a skipping rope (c) a raincoat (d) an oven glove
  2. 2.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  3. 3.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🔍 Which is the odd one out? (a) brass (b) iron (c) steel (d) rubber
  6. 6.🔍 Which is the odd one out? (a) aluminium (b) copper (c) plastic (d) iron
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.True or false: a raincoat needs a flexible material. (a) False (b) True
  9. 9.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  10. 10.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  11. 11.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  13. 13.True or false: a window pane needs a heat insulator. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) dry wood (d) steel
  15. 15.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  16. 16.Which of these needs a waterproof material? (a) a hair band (b) a tea flask lining (c) an oven glove (d) a raincoat
  17. 17.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  18. 18.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  19. 19.Which of these needs a heat insulator? (a) a tea flask lining (b) a yoga mat (c) a spectacle lens (d) a roof sheet
  20. 20.Which of these needs a flexible material? (a) a hair band (b) a cooking pot handle (c) a spectacle lens (d) a switch contact
  21. 21.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  22. 22.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  23. 23.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  24. 24.Which of these needs a heat insulator? (a) a yoga mat (b) a raincoat (c) a skipping rope (d) a cooking pot handle
  25. 25.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  26. 26.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  27. 27.True or false: a raincoat needs a waterproof material. (a) True (b) False
  28. 28.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  29. 29.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  30. 30.🧱 Which property matters most for a yoga mat? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  31. 31.Which of these needs a transparent material? (a) a water tank (b) the core of a wire (c) a switch contact (d) a spectacle lens
  32. 32.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.True or false: an oven glove needs an electrical conductor. (a) False (b) True
  35. 35.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.Which of these needs a transparent material? (a) a plug pin (b) a cooking pot handle (c) a car seat belt (d) a window pane
  37. 37.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  38. 38.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  39. 39.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) copper (d) graphite

Answer key

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

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