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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 349 · 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 transparent material? (a) a yoga mat (b) a roof sheet (c) an oven glove (d) a car windscreen
  2. 2.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  3. 3.True or false: a car windscreen needs a transparent material. (a) False (b) True
  4. 4.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  5. 5.🔍 Which is the odd one out? (a) copper (b) brass (c) plastic (d) aluminium
  6. 6.🔍 Which is the odd one out? (a) steel (b) copper (c) dry wood (d) aluminium
  7. 7.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  8. 8.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  9. 9.🧱 Which property matters most for an oven glove? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  10. 10.🔍 Which is the odd one out? (a) steel (b) graphite (c) rubber (d) copper
  11. 11.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  12. 12.Which of these needs a waterproof material? (a) a magnifier lens (b) a raincoat (c) a switch contact (d) a car windscreen
  13. 13.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  14. 14.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  15. 15.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) iron (d) rubber
  17. 17.Which of these needs a transparent material? (a) a water tank (b) a window pane (c) a boat hull (d) a car seat belt
  18. 18.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  20. 20.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  21. 21.🔍 Which is the odd one out? (a) copper (b) brass (c) clay pottery (d) iron
  22. 22.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  24. 24.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) copper (d) plastic
  25. 25.🧱 Which property matters most for a yoga mat? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  26. 26.True or false: a water tank needs a transparent material. (a) True (b) False
  27. 27.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  29. 29.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  33. 33.🔍 Which is the odd one out? (a) rubber (b) plastic (c) graphite (d) dry wood
  34. 34.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) clay pottery (d) dry wood
  38. 38.Which of these needs an electrical conductor? (a) a tea flask lining (b) the core of a wire (c) a cooking pot handle (d) a hair band
  39. 39.True or false: a hair band needs a flexible material. (a) True (b) False
  40. 40.True or false: a boat hull needs a waterproof material. (a) False (b) True

Answer key

  1. a car windscreen
  2. transparent
  3. True
  4. transparent
  5. plastic
  6. dry wood
  7. copper
  8. steel
  9. heat insulator
  10. rubber
  11. transparent
  12. a raincoat
  13. flexible
  14. plastic-coated cloth
  15. True
  16. iron
  17. a window pane
  18. a conductor
  19. False
  20. wood or plastic
  21. clay pottery
  22. an insulator
  23. heat insulator
  24. copper
  25. flexible
  26. False
  27. a conductor
  28. waterproof
  29. electrical conductor
  30. an insulator
  31. a conductor
  32. waterproof
  33. graphite
  34. a conductor
  35. an insulator
  36. a conductor
  37. aluminium
  38. the core of a wire
  39. True
  40. True

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