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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 322 · 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: the core of a wire needs an electrical conductor. (a) False (b) True
  2. 2.Which of these needs a transparent material? (a) a spectacle lens (b) a roof sheet (c) a water tank (d) an umbrella cover
  3. 3.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  4. 4.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  5. 5.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  7. 7.True or false: a car seat belt needs a transparent material. (a) True (b) False
  8. 8.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a hair band needs a transparent material. (a) False (b) True
  10. 10.Which of these needs a heat insulator? (a) a car seat belt (b) a tea flask lining (c) a skipping rope (d) the core of a wire
  11. 11.Which of these needs a heat insulator? (a) a cooking pot handle (b) a water tank (c) an umbrella cover (d) a car windscreen
  12. 12.True or false: the core of a wire needs a flexible material. (a) False (b) True
  13. 13.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  15. 15.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  18. 18.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  19. 19.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) steel (b) plastic (c) copper (d) aluminium
  21. 21.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) cotton cloth (d) brass
  22. 22.🔍 Which is the odd one out? (a) rubber (b) plastic (c) aluminium (d) glass
  23. 23.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🔍 Which is the odd one out? (a) copper (b) iron (c) aluminium (d) rubber
  25. 25.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  26. 26.🔍 Which is the odd one out? (a) copper (b) aluminium (c) steel (d) clay pottery
  27. 27.🔍 Which is the odd one out? (a) iron (b) steel (c) glass (d) copper
  28. 28.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  29. 29.Which of these needs a transparent material? (a) a cooking pot handle (b) a car windscreen (c) a car seat belt (d) a skipping rope
  30. 30.Which of these needs an electrical conductor? (a) a hair band (b) a window pane (c) a raincoat (d) a switch contact
  31. 31.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  33. 33.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  34. 34.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  35. 35.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  37. 37.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  38. 38.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  39. 39.Which of these needs a waterproof material? (a) a car windscreen (b) an umbrella cover (c) the core of a wire (d) an oven glove
  40. 40.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. True
  2. a spectacle lens
  3. copper
  4. waterproof
  5. a conductor
  6. steel
  7. False
  8. an insulator
  9. False
  10. a tea flask lining
  11. a cooking pot handle
  12. False
  13. a conductor
  14. wood or plastic
  15. a conductor
  16. an insulator
  17. plastic-coated cloth
  18. waterproof
  19. False
  20. plastic
  21. brass
  22. aluminium
  23. a conductor
  24. rubber
  25. flexible
  26. clay pottery
  27. glass
  28. flexible
  29. a car windscreen
  30. a switch contact
  31. an insulator
  32. electrical conductor
  33. glass
  34. False
  35. an insulator
  36. waterproof
  37. heat insulator
  38. transparent
  39. an umbrella cover
  40. an insulator

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