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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 100 · 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 a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  2. 2.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.Which of these needs a transparent material? (a) a car seat belt (b) a roof sheet (c) a hair band (d) a spectacle lens
  4. 4.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  5. 5.True or false: an oven glove needs a waterproof material. (a) True (b) False
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  7. 7.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  8. 8.Which of these needs a transparent material? (a) a water tank (b) a yoga mat (c) a roof sheet (d) a window pane
  9. 9.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  10. 10.True or false: a boat hull needs a transparent material. (a) False (b) True
  11. 11.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  12. 12.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  13. 13.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  15. 15.Which of these needs a waterproof material? (a) a window pane (b) a hair band (c) a water tank (d) a magnifier lens
  16. 16.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) rubber (d) copper
  17. 17.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  19. 19.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  20. 20.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.True or false: a raincoat needs a waterproof material. (a) False (b) True
  22. 22.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🔍 Which is the odd one out? (a) iron (b) rubber (c) cotton cloth (d) plastic
  24. 24.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  25. 25.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🔍 Which is the odd one out? (a) rubber (b) plastic (c) dry wood (d) aluminium
  27. 27.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  28. 28.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  30. 30.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  31. 31.Which of these needs a flexible material? (a) a tea flask lining (b) a hair band (c) an oven glove (d) a raincoat
  32. 32.True or false: a yoga mat needs a heat insulator. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) copper (b) steel (c) aluminium (d) cotton cloth
  34. 34.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  35. 35.🧱 Which property matters most for a magnifier lens? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  36. 36.True or false: a roof sheet needs a flexible material. (a) False (b) True
  37. 37.🧱 Which property matters most for an oven glove? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  38. 38.🔍 Which is the odd one out? (a) graphite (b) brass (c) steel (d) plastic
  39. 39.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.True or false: a car seat belt needs a flexible material. (a) False (b) True

Answer key

  1. plastic-coated cloth
  2. an insulator
  3. a spectacle lens
  4. glass
  5. False
  6. steel
  7. waterproof
  8. a window pane
  9. flexible
  10. False
  11. False
  12. heat insulator
  13. a conductor
  14. transparent
  15. a water tank
  16. copper
  17. a conductor
  18. copper
  19. True
  20. a conductor
  21. True
  22. a conductor
  23. iron
  24. waterproof
  25. an insulator
  26. aluminium
  27. wood or plastic
  28. an insulator
  29. waterproof
  30. waterproof
  31. a hair band
  32. False
  33. cotton cloth
  34. heat insulator
  35. transparent
  36. False
  37. heat insulator
  38. plastic
  39. a conductor
  40. True

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