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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 686 · 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.True or false: an oven glove needs a heat insulator. (a) False (b) True
  2. 2.Which of these needs a transparent material? (a) a plug pin (b) an umbrella cover (c) a magnifier lens (d) a car seat belt
  3. 3.🔍 Which is the odd one out? (a) glass (b) steel (c) cotton cloth (d) clay pottery
  4. 4.Which of these needs a flexible material? (a) a plug pin (b) a yoga mat (c) a switch contact (d) a water tank
  5. 5.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  6. 6.True or false: a yoga mat needs a flexible material. (a) False (b) True
  7. 7.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  8. 8.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  10. 10.Which of these needs a waterproof material? (a) a yoga mat (b) a car windscreen (c) a car seat belt (d) an umbrella cover
  11. 11.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) rubber (d) glass
  12. 12.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  13. 13.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  14. 14.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  15. 15.Which of these needs a flexible material? (a) a car seat belt (b) a window pane (c) a plug pin (d) a water tank
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.True or false: a boat hull needs a waterproof material. (a) False (b) True
  18. 18.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  19. 19.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  21. 21.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.True or false: a water tank needs a waterproof material. (a) True (b) False
  25. 25.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  26. 26.🔍 Which is the odd one out? (a) dry wood (b) iron (c) copper (d) brass
  27. 27.🧱 Which property matters most for a plug pin? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  28. 28.Which of these needs a heat insulator? (a) an oven glove (b) a roof sheet (c) a window pane (d) a boat hull
  29. 29.Which of these needs a transparent material? (a) a cooking pot handle (b) a car seat belt (c) a yoga mat (d) a window pane
  30. 30.🔍 Which is the odd one out? (a) plastic (b) rubber (c) glass (d) graphite
  31. 31.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🔍 Which is the odd one out? (a) iron (b) graphite (c) copper (d) rubber
  33. 33.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a yoga mat (c) a plug pin (d) a boat hull
  34. 34.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  35. 35.Which of these needs a heat insulator? (a) a window pane (b) a raincoat (c) a skipping rope (d) a cooking pot handle
  36. 36.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  37. 37.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  39. 39.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  40. 40.🔍 Which is the odd one out? (a) iron (b) steel (c) glass (d) copper

Answer key

  1. True
  2. a magnifier lens
  3. steel
  4. a yoga mat
  5. waterproof
  6. True
  7. heat insulator
  8. a conductor
  9. waterproof
  10. an umbrella cover
  11. copper
  12. steel
  13. flexible
  14. wood or plastic
  15. a car seat belt
  16. an insulator
  17. True
  18. transparent
  19. an insulator
  20. copper
  21. a conductor
  22. a conductor
  23. an insulator
  24. True
  25. waterproof
  26. dry wood
  27. electrical conductor
  28. an oven glove
  29. a window pane
  30. graphite
  31. a conductor
  32. rubber
  33. a plug pin
  34. flexible
  35. a cooking pot handle
  36. waterproof
  37. a conductor
  38. False
  39. flexible
  40. glass

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