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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 216 · 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 property matters most for a spectacle lens? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  2. 2.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  3. 3.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) clay pottery (d) cotton cloth
  4. 4.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) brass (d) plastic
  5. 5.Which of these needs a waterproof material? (a) an umbrella cover (b) a yoga mat (c) a car windscreen (d) a switch contact
  6. 6.Which of these needs a transparent material? (a) a plug pin (b) the core of a wire (c) a magnifier lens (d) an umbrella cover
  7. 7.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  8. 8.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) glass (d) steel
  9. 9.Which of these needs a transparent material? (a) a spectacle lens (b) a skipping rope (c) a raincoat (d) the core of a wire
  10. 10.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) brass (b) plastic (c) aluminium (d) iron
  12. 12.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  13. 13.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.True or false: a skipping rope needs a flexible material. (a) False (b) True
  15. 15.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  16. 16.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  20. 20.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a heat insulator? (a) a skipping rope (b) a water tank (c) a window pane (d) an oven glove
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.True or false: a skipping rope needs a transparent material. (a) True (b) False
  24. 24.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  25. 25.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  26. 26.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  27. 27.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  28. 28.Which of these needs a heat insulator? (a) a tea flask lining (b) a roof sheet (c) a car seat belt (d) a spectacle lens
  29. 29.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: a car windscreen needs a transparent material. (a) True (b) False
  31. 31.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  33. 33.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  34. 34.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) cotton cloth (d) copper
  35. 35.Which of these needs an electrical conductor? (a) an oven glove (b) a switch contact (c) a water tank (d) a hair band
  36. 36.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) brass (d) aluminium
  37. 37.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  38. 38.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  39. 39.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  40. 40.True or false: a skipping rope needs a heat insulator. (a) False (b) True

Answer key

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

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