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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 108 · 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 iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  3. 3.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  4. 4.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  5. 5.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  6. 6.🧱 Which property matters most for a magnifier lens? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  7. 7.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.Which of these needs a waterproof material? (a) a magnifier lens (b) a tea flask lining (c) a water tank (d) a car windscreen
  9. 9.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  10. 10.Which of these needs a waterproof material? (a) a yoga mat (b) a switch contact (c) the core of a wire (d) a roof sheet
  11. 11.Which of these needs a flexible material? (a) a water tank (b) a raincoat (c) a plug pin (d) a yoga mat
  12. 12.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  13. 13.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  14. 14.Which of these needs an electrical conductor? (a) the core of a wire (b) a tea flask lining (c) a roof sheet (d) a boat hull
  15. 15.True or false: a water tank needs a waterproof material. (a) False (b) True
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.Which of these needs an electrical conductor? (a) a switch contact (b) a roof sheet (c) a tea flask lining (d) a boat hull
  18. 18.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.Which of these needs a transparent material? (a) the core of a wire (b) a car seat belt (c) a plug pin (d) a car windscreen
  21. 21.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  22. 22.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  23. 23.Which of these needs a flexible material? (a) an umbrella cover (b) a water tank (c) a cooking pot handle (d) a car seat belt
  24. 24.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  27. 27.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  28. 28.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  29. 29.🔍 Which is the odd one out? (a) iron (b) graphite (c) steel (d) rubber
  30. 30.🔍 Which is the odd one out? (a) plastic (b) graphite (c) aluminium (d) steel
  31. 31.Which of these needs a waterproof material? (a) a yoga mat (b) a cooking pot handle (c) a raincoat (d) a window pane
  32. 32.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  33. 33.🔍 Which is the odd one out? (a) glass (b) rubber (c) clay pottery (d) brass
  34. 34.Which of these needs a heat insulator? (a) a car windscreen (b) a switch contact (c) a boat hull (d) a cooking pot handle
  35. 35.🧱 Which property matters most for a window pane? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  36. 36.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a transparent material? (a) an oven glove (b) a boat hull (c) a plug pin (d) a spectacle lens
  38. 38.🔍 Which is the odd one out? (a) iron (b) steel (c) cotton cloth (d) brass
  39. 39.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  40. 40.True or false: a boat hull needs a waterproof material. (a) True (b) False

Answer key

  1. a conductor
  2. plastic-coated cloth
  3. steel
  4. copper
  5. transparent
  6. transparent
  7. an insulator
  8. a water tank
  9. True
  10. a roof sheet
  11. a yoga mat
  12. False
  13. glass
  14. the core of a wire
  15. True
  16. a conductor
  17. a switch contact
  18. False
  19. an insulator
  20. a car windscreen
  21. waterproof
  22. waterproof
  23. a car seat belt
  24. an insulator
  25. an insulator
  26. electrical conductor
  27. transparent
  28. heat insulator
  29. rubber
  30. plastic
  31. a raincoat
  32. flexible
  33. brass
  34. a cooking pot handle
  35. transparent
  36. an insulator
  37. a spectacle lens
  38. cotton cloth
  39. heat insulator
  40. True

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