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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 192 · 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 material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  2. 2.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) steel (d) plastic
  3. 3.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  5. 5.🧱 Which property matters most for a skipping rope? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  6. 6.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) plastic (d) copper
  7. 7.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  11. 11.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  12. 12.Which of these needs a transparent material? (a) a hair band (b) a magnifier lens (c) an oven glove (d) a skipping rope
  13. 13.True or false: a car windscreen needs an electrical conductor. (a) True (b) False
  14. 14.True or false: a raincoat needs a heat insulator. (a) False (b) True
  15. 15.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  16. 16.Which of these needs an electrical conductor? (a) a tea flask lining (b) a plug pin (c) an umbrella cover (d) a spectacle lens
  17. 17.🔍 Which is the odd one out? (a) graphite (b) rubber (c) glass (d) clay pottery
  18. 18.True or false: a water tank needs a waterproof material. (a) False (b) True
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  21. 21.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  22. 22.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  23. 23.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  24. 24.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) plastic (d) iron
  25. 25.Which of these needs a waterproof material? (a) an umbrella cover (b) a window pane (c) a plug pin (d) a car windscreen
  26. 26.🔍 Which is the odd one out? (a) aluminium (b) steel (c) dry wood (d) copper
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  29. 29.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) rubber (d) dry wood
  31. 31.True or false: a window pane needs a heat insulator. (a) False (b) True
  32. 32.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  33. 33.Which of these needs a flexible material? (a) a raincoat (b) a skipping rope (c) a tea flask lining (d) a car windscreen
  34. 34.🧱 Which property matters most for a spectacle lens? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  35. 35.🔍 Which is the odd one out? (a) steel (b) copper (c) brass (d) rubber
  36. 36.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  37. 37.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  40. 40.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) electrical conductor (d) flexible

Answer key

  1. steel
  2. steel
  3. a conductor
  4. transparent
  5. flexible
  6. copper
  7. waterproof
  8. an insulator
  9. a conductor
  10. True
  11. True
  12. a magnifier lens
  13. False
  14. False
  15. heat insulator
  16. a plug pin
  17. graphite
  18. True
  19. an insulator
  20. flexible
  21. plastic-coated cloth
  22. wood or plastic
  23. copper
  24. plastic
  25. an umbrella cover
  26. dry wood
  27. a conductor
  28. waterproof
  29. an insulator
  30. aluminium
  31. False
  32. False
  33. a skipping rope
  34. transparent
  35. rubber
  36. True
  37. a conductor
  38. a conductor
  39. True
  40. electrical conductor

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