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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 492 · 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) paper (c) cardboard (d) cotton wool
  2. 2.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  3. 3.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) rubber (d) graphite
  4. 4.True or false: a plug pin needs a transparent material. (a) False (b) True
  5. 5.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  6. 6.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  7. 7.True or false: a magnifier lens needs a heat insulator. (a) True (b) False
  8. 8.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  9. 9.True or false: a cooking pot handle needs a transparent material. (a) True (b) False
  10. 10.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.Which of these needs an electrical conductor? (a) an oven glove (b) a plug pin (c) a magnifier lens (d) a hair band
  12. 12.🔍 Which is the odd one out? (a) steel (b) brass (c) plastic (d) copper
  13. 13.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  14. 14.True or false: a raincoat needs a waterproof material. (a) True (b) False
  15. 15.Which of these needs a heat insulator? (a) a boat hull (b) a car windscreen (c) a cooking pot handle (d) a water tank
  16. 16.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) rubber (d) copper
  17. 17.True or false: a car seat belt needs a flexible material. (a) False (b) True
  18. 18.Which of these needs an electrical conductor? (a) a switch contact (b) a car windscreen (c) a car seat belt (d) a cooking pot handle
  19. 19.🔍 Which is the odd one out? (a) dry wood (b) glass (c) rubber (d) steel
  20. 20.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs an electrical conductor? (a) a roof sheet (b) the core of a wire (c) a skipping rope (d) a spectacle lens
  22. 22.True or false: a boat hull needs a waterproof material. (a) False (b) True
  23. 23.🧱 Which property matters most for a window pane? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  24. 24.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  25. 25.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) brass (d) copper
  26. 26.Which of these needs a waterproof material? (a) a boat hull (b) a window pane (c) a spectacle lens (d) an oven glove
  27. 27.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  28. 28.True or false: a yoga mat needs a flexible material. (a) True (b) False
  29. 29.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  30. 30.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  31. 31.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  32. 32.🧱 Which property matters most for a car windscreen? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  33. 33.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs a heat insulator? (a) a tea flask lining (b) a plug pin (c) a window pane (d) a switch contact
  35. 35.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  36. 36.Which of these needs a waterproof material? (a) a magnifier lens (b) a raincoat (c) a car seat belt (d) a spectacle lens
  37. 37.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  38. 38.Which of these needs a waterproof material? (a) a spectacle lens (b) the core of a wire (c) a yoga mat (d) an umbrella cover
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. plastic-coated cloth
  2. True
  3. graphite
  4. False
  5. waterproof
  6. True
  7. False
  8. flexible
  9. False
  10. an insulator
  11. a plug pin
  12. plastic
  13. False
  14. True
  15. a cooking pot handle
  16. copper
  17. True
  18. a switch contact
  19. steel
  20. an insulator
  21. the core of a wire
  22. True
  23. transparent
  24. flexible
  25. cotton cloth
  26. a boat hull
  27. flexible
  28. True
  29. glass
  30. heat insulator
  31. electrical conductor
  32. transparent
  33. an insulator
  34. a tea flask lining
  35. waterproof
  36. a raincoat
  37. False
  38. an umbrella cover
  39. an insulator
  40. a conductor

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