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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 935 · 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 aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  3. 3.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  4. 4.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  6. 6.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  8. 8.True or false: a raincoat needs a transparent material. (a) False (b) True
  9. 9.Which of these needs a heat insulator? (a) a switch contact (b) a car windscreen (c) a water tank (d) a tea flask lining
  10. 10.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  14. 14.Which of these needs a waterproof material? (a) a car windscreen (b) an umbrella cover (c) a hair band (d) a switch contact
  15. 15.True or false: a hair band needs a flexible material. (a) False (b) True
  16. 16.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  17. 17.Which of these needs a waterproof material? (a) a hair band (b) a raincoat (c) the core of a wire (d) a spectacle lens
  18. 18.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  19. 19.Which of these needs an electrical conductor? (a) a spectacle lens (b) a switch contact (c) a cooking pot handle (d) a raincoat
  20. 20.Which of these needs a heat insulator? (a) a car seat belt (b) a skipping rope (c) an oven glove (d) an umbrella cover
  21. 21.Which of these needs a transparent material? (a) an umbrella cover (b) a magnifier lens (c) a yoga mat (d) the core of a wire
  22. 22.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which property matters most for the core of a wire? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  24. 24.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  25. 25.True or false: a raincoat needs a flexible material. (a) False (b) True
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🔍 Which is the odd one out? (a) copper (b) aluminium (c) graphite (d) plastic
  28. 28.Which of these needs an electrical conductor? (a) the core of a wire (b) an oven glove (c) a boat hull (d) a window pane
  29. 29.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  30. 30.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) steel (d) graphite
  31. 31.Which of these needs a transparent material? (a) a hair band (b) a spectacle lens (c) a yoga mat (d) a boat hull
  32. 32.🔍 Which is the odd one out? (a) graphite (b) rubber (c) copper (d) brass
  33. 33.True or false: a water tank needs a flexible material. (a) True (b) False
  34. 34.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  35. 35.Which of these needs a waterproof material? (a) a skipping rope (b) a window pane (c) a roof sheet (d) a switch contact
  36. 36.🔍 Which is the odd one out? (a) glass (b) rubber (c) plastic (d) steel
  37. 37.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  38. 38.Which of these needs a flexible material? (a) a spectacle lens (b) a raincoat (c) an umbrella cover (d) a yoga mat
  39. 39.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  40. 40.🧱 Which property matters most for a plug pin? (a) waterproof (b) transparent (c) flexible (d) electrical conductor

Answer key

  1. a conductor
  2. transparent
  3. waterproof
  4. an insulator
  5. False
  6. an insulator
  7. True
  8. False
  9. a tea flask lining
  10. electrical conductor
  11. a conductor
  12. an insulator
  13. steel
  14. an umbrella cover
  15. True
  16. flexible
  17. a raincoat
  18. waterproof
  19. a switch contact
  20. an oven glove
  21. a magnifier lens
  22. an insulator
  23. electrical conductor
  24. copper
  25. False
  26. an insulator
  27. plastic
  28. the core of a wire
  29. True
  30. cotton cloth
  31. a spectacle lens
  32. rubber
  33. False
  34. heat insulator
  35. a roof sheet
  36. steel
  37. wood or plastic
  38. a yoga mat
  39. waterproof
  40. electrical conductor

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