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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 912 · 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 clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  3. 3.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  5. 5.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  6. 6.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.True or false: a water tank needs a waterproof material. (a) True (b) False
  8. 8.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  9. 9.Which of these needs a transparent material? (a) a yoga mat (b) a plug pin (c) a tea flask lining (d) a spectacle lens
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: a window pane needs an electrical conductor. (a) False (b) True
  12. 12.Which of these needs a heat insulator? (a) a skipping rope (b) a magnifier lens (c) an oven glove (d) a spectacle lens
  13. 13.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  14. 14.Which of these needs a transparent material? (a) a switch contact (b) a magnifier lens (c) an umbrella cover (d) a skipping rope
  15. 15.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  16. 16.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.True or false: an oven glove needs a heat insulator. (a) False (b) True
  18. 18.Which of these needs a flexible material? (a) a raincoat (b) a switch contact (c) a skipping rope (d) a boat hull
  19. 19.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  20. 20.Which of these needs a transparent material? (a) a water tank (b) a switch contact (c) a car windscreen (d) an umbrella cover
  21. 21.🔍 Which is the odd one out? (a) brass (b) glass (c) graphite (d) steel
  22. 22.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  23. 23.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  24. 24.True or false: a hair band needs a transparent material. (a) True (b) False
  25. 25.True or false: a window pane needs a waterproof material. (a) False (b) True
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.Which of these needs an electrical conductor? (a) a skipping rope (b) an oven glove (c) a yoga mat (d) a plug pin
  28. 28.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  29. 29.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) graphite (d) dry wood
  30. 30.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  31. 31.🧱 Which property matters most for a hair band? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  32. 32.🧱 Which property matters most for a car seat belt? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  33. 33.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  34. 34.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  35. 35.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  36. 36.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) iron (d) clay pottery
  39. 39.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  40. 40.True or false: a car windscreen needs a transparent material. (a) True (b) False

Answer key

  1. an insulator
  2. electrical conductor
  3. an insulator
  4. plastic-coated cloth
  5. transparent
  6. an insulator
  7. True
  8. copper
  9. a spectacle lens
  10. a conductor
  11. False
  12. an oven glove
  13. glass
  14. a magnifier lens
  15. heat insulator
  16. an insulator
  17. True
  18. a skipping rope
  19. transparent
  20. a car windscreen
  21. glass
  22. False
  23. waterproof
  24. False
  25. False
  26. a conductor
  27. a plug pin
  28. steel
  29. graphite
  30. flexible
  31. flexible
  32. flexible
  33. transparent
  34. electrical conductor
  35. False
  36. an insulator
  37. True
  38. clay pottery
  39. heat insulator
  40. True

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