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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 285 · 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 magnifier lens? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  2. 2.True or false: a boat hull needs a heat insulator. (a) True (b) False
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) dry wood (d) plastic
  5. 5.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  6. 6.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  10. 10.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  11. 11.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  12. 12.Which of these needs a heat insulator? (a) a magnifier lens (b) a tea flask lining (c) a hair band (d) a yoga mat
  13. 13.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) copper (d) clay pottery
  14. 14.🔍 Which is the odd one out? (a) iron (b) aluminium (c) rubber (d) copper
  15. 15.🔍 Which is the odd one out? (a) brass (b) dry wood (c) clay pottery (d) rubber
  16. 16.True or false: a skipping rope needs a flexible material. (a) False (b) True
  17. 17.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  18. 18.Which of these needs a waterproof material? (a) a spectacle lens (b) a window pane (c) a car seat belt (d) a water tank
  19. 19.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  20. 20.True or false: a window pane needs a transparent material. (a) False (b) True
  21. 21.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.True or false: a switch contact needs a heat insulator. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) glass (b) steel (c) plastic (d) dry wood
  24. 24.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  25. 25.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  26. 26.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  27. 27.True or false: a window pane needs a heat insulator. (a) True (b) False
  28. 28.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.True or false: a yoga mat needs a flexible material. (a) True (b) False
  30. 30.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  31. 31.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  32. 32.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  33. 33.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  34. 34.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  36. 36.True or false: a hair band needs a transparent material. (a) False (b) True
  37. 37.Which of these needs a transparent material? (a) a skipping rope (b) a spectacle lens (c) a raincoat (d) a boat hull
  38. 38.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.Which of these needs a transparent material? (a) an umbrella cover (b) a water tank (c) a roof sheet (d) a car windscreen
  40. 40.True or false: a magnifier lens needs a transparent material. (a) True (b) False

Answer key

  1. transparent
  2. False
  3. an insulator
  4. iron
  5. flexible
  6. a conductor
  7. an insulator
  8. an insulator
  9. flexible
  10. heat insulator
  11. wood or plastic
  12. a tea flask lining
  13. copper
  14. rubber
  15. brass
  16. True
  17. False
  18. a water tank
  19. steel
  20. True
  21. an insulator
  22. False
  23. steel
  24. copper
  25. True
  26. electrical conductor
  27. False
  28. an insulator
  29. True
  30. waterproof
  31. flexible
  32. electrical conductor
  33. waterproof
  34. a conductor
  35. False
  36. False
  37. a spectacle lens
  38. a conductor
  39. a car windscreen
  40. True

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