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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 985 · 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.True or false: a raincoat needs a transparent material. (a) False (b) True
  2. 2.🔍 Which is the odd one out? (a) steel (b) graphite (c) copper (d) glass
  3. 3.Which of these needs a waterproof material? (a) a skipping rope (b) a window pane (c) a yoga mat (d) a boat hull
  4. 4.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  5. 5.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  7. 7.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  8. 8.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  9. 9.Which of these needs a flexible material? (a) an oven glove (b) a raincoat (c) a hair band (d) a tea flask lining
  10. 10.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) steel (b) copper (c) aluminium (d) cotton cloth
  12. 12.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a window pane? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  14. 14.🧱 Which property matters most for a water tank? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  15. 15.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  16. 16.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  17. 17.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  18. 18.Which of these needs a heat insulator? (a) a tea flask lining (b) the core of a wire (c) an umbrella cover (d) a boat hull
  19. 19.🧱 Which property matters most for a plug pin? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  20. 20.Which of these needs a flexible material? (a) an oven glove (b) a car windscreen (c) a window pane (d) a skipping rope
  21. 21.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  23. 23.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  24. 24.Which of these needs a transparent material? (a) a boat hull (b) a magnifier lens (c) a yoga mat (d) a water tank
  25. 25.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  26. 26.True or false: a hair band needs an electrical conductor. (a) True (b) False
  27. 27.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.Which of these needs a heat insulator? (a) a spectacle lens (b) a car windscreen (c) an umbrella cover (d) a cooking pot handle
  29. 29.Which of these needs an electrical conductor? (a) an oven glove (b) a skipping rope (c) a car seat belt (d) a plug pin
  30. 30.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  31. 31.🔍 Which is the odd one out? (a) steel (b) copper (c) brass (d) rubber
  32. 32.Which of these needs a waterproof material? (a) a plug pin (b) an umbrella cover (c) a car windscreen (d) a window pane
  33. 33.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  34. 34.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.Which of these needs a transparent material? (a) a car windscreen (b) a car seat belt (c) a switch contact (d) a yoga mat
  36. 36.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  37. 37.Which of these needs a transparent material? (a) a spectacle lens (b) a tea flask lining (c) a plug pin (d) a yoga mat
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs a heat insulator? (a) a magnifier lens (b) an oven glove (c) a switch contact (d) a hair band
  40. 40.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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