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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 407 · 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.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🔍 Which is the odd one out? (a) iron (b) brass (c) clay pottery (d) steel
  3. 3.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  4. 4.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  5. 5.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  6. 6.🔍 Which is the odd one out? (a) brass (b) rubber (c) clay pottery (d) cotton cloth
  7. 7.🧱 Which property matters most for a plug pin? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  8. 8.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  9. 9.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  10. 10.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  11. 11.Which of these needs a flexible material? (a) a window pane (b) a roof sheet (c) a raincoat (d) a skipping rope
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  15. 15.Which of these needs a heat insulator? (a) a roof sheet (b) a magnifier lens (c) a cooking pot handle (d) a yoga mat
  16. 16.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🔍 Which is the odd one out? (a) brass (b) aluminium (c) glass (d) copper
  19. 19.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  20. 20.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs an electrical conductor? (a) a water tank (b) a yoga mat (c) a raincoat (d) the core of a wire
  22. 22.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  23. 23.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  24. 24.True or false: a boat hull needs a flexible material. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) glass (b) dry wood (c) aluminium (d) clay pottery
  26. 26.Which of these needs a transparent material? (a) a roof sheet (b) a plug pin (c) a water tank (d) a car windscreen
  27. 27.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  28. 28.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  29. 29.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  30. 30.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) steel (d) plastic
  31. 31.Which of these needs an electrical conductor? (a) an umbrella cover (b) a plug pin (c) a hair band (d) a spectacle lens
  32. 32.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  33. 33.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  36. 36.🧱 Which property matters most for an umbrella cover? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  37. 37.True or false: a water tank needs an electrical conductor. (a) False (b) True
  38. 38.Which of these needs a waterproof material? (a) a spectacle lens (b) a roof sheet (c) a switch contact (d) a skipping rope
  39. 39.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  40. 40.🔍 Which is the odd one out? (a) iron (b) glass (c) clay pottery (d) rubber

Answer key

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

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