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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 685 · 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 plug pin? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  2. 2.Which of these needs a waterproof material? (a) an oven glove (b) a raincoat (c) a car seat belt (d) a window pane
  3. 3.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  5. 5.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  6. 6.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🔍 Which is the odd one out? (a) brass (b) graphite (c) steel (d) plastic
  8. 8.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a yoga mat? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  10. 10.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  11. 11.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) glass (b) copper (c) clay pottery (d) rubber
  13. 13.Which of these needs a transparent material? (a) the core of a wire (b) an umbrella cover (c) a cooking pot handle (d) a car windscreen
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  16. 16.Which of these needs a transparent material? (a) a roof sheet (b) an oven glove (c) a magnifier lens (d) a water tank
  17. 17.True or false: a water tank needs a transparent material. (a) False (b) True
  18. 18.Which of these needs a heat insulator? (a) a magnifier lens (b) a raincoat (c) an oven glove (d) a window pane
  19. 19.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  20. 20.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  21. 21.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) clay pottery (d) glass
  22. 22.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  23. 23.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  24. 24.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  25. 25.Which of these needs a waterproof material? (a) an oven glove (b) a cooking pot handle (c) a boat hull (d) a car windscreen
  26. 26.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  27. 27.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  28. 28.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  29. 29.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: a hair band needs a transparent material. (a) False (b) True
  31. 31.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  33. 33.Which of these needs a flexible material? (a) a cooking pot handle (b) a hair band (c) a window pane (d) a magnifier lens
  34. 34.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  35. 35.🔍 Which is the odd one out? (a) plastic (b) rubber (c) steel (d) glass
  36. 36.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  37. 37.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) plastic (d) cotton cloth
  38. 38.True or false: a skipping rope needs a flexible material. (a) False (b) True
  39. 39.True or false: an oven glove needs a flexible material. (a) False (b) True
  40. 40.True or false: a raincoat needs a transparent material. (a) True (b) False

Answer key

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

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