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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 622 · 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.True or false: a water tank needs an electrical conductor. (a) True (b) False
  3. 3.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  4. 4.🧱 Which property matters most for a switch contact? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  5. 5.True or false: a skipping rope needs a flexible material. (a) True (b) False
  6. 6.🧱 Which property matters most for a yoga mat? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  9. 9.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  11. 11.Which of these needs a transparent material? (a) a magnifier lens (b) an oven glove (c) a cooking pot handle (d) a yoga mat
  12. 12.🧱 Which property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  13. 13.Which of these needs a heat insulator? (a) a cooking pot handle (b) a plug pin (c) a magnifier lens (d) a car seat belt
  14. 14.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  16. 16.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  17. 17.🧱 Which property matters most for a car seat belt? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  18. 18.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  19. 19.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) aluminium (d) plastic
  21. 21.🔍 Which is the odd one out? (a) graphite (b) brass (c) aluminium (d) plastic
  22. 22.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  23. 23.🔍 Which is the odd one out? (a) rubber (b) glass (c) cotton cloth (d) graphite
  24. 24.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  26. 26.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a car seat belt needs a flexible material. (a) True (b) False
  28. 28.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which property matters most for a car windscreen? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  31. 31.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  32. 32.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  33. 33.Which of these needs a heat insulator? (a) an umbrella cover (b) a yoga mat (c) an oven glove (d) a water tank
  34. 34.Which of these needs a waterproof material? (a) a car seat belt (b) a yoga mat (c) a plug pin (d) a boat hull
  35. 35.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  36. 36.🔍 Which is the odd one out? (a) plastic (b) glass (c) brass (d) rubber
  37. 37.Which of these needs a waterproof material? (a) a raincoat (b) a skipping rope (c) a spectacle lens (d) a window pane
  38. 38.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  39. 39.True or false: a hair band needs a flexible material. (a) False (b) True
  40. 40.Which of these needs a flexible material? (a) an oven glove (b) a raincoat (c) a water tank (d) a hair band

Answer key

  1. an insulator
  2. False
  3. waterproof
  4. electrical conductor
  5. True
  6. flexible
  7. a conductor
  8. flexible
  9. an insulator
  10. True
  11. a magnifier lens
  12. flexible
  13. a cooking pot handle
  14. an insulator
  15. True
  16. waterproof
  17. flexible
  18. heat insulator
  19. transparent
  20. aluminium
  21. plastic
  22. glass
  23. graphite
  24. an insulator
  25. copper
  26. a conductor
  27. True
  28. wood or plastic
  29. a conductor
  30. transparent
  31. steel
  32. False
  33. an oven glove
  34. a boat hull
  35. plastic-coated cloth
  36. brass
  37. a raincoat
  38. electrical conductor
  39. True
  40. a hair band

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