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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 615 · 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 steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs an electrical conductor? (a) a raincoat (b) an umbrella cover (c) the core of a wire (d) a spectacle lens
  3. 3.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) brass (d) cotton cloth
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) glass (d) dry wood
  5. 5.Which of these needs a waterproof material? (a) a hair band (b) a yoga mat (c) a roof sheet (d) an oven glove
  6. 6.True or false: a boat hull needs a waterproof material. (a) False (b) True
  7. 7.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🔍 Which is the odd one out? (a) rubber (b) plastic (c) dry wood (d) graphite
  9. 9.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  10. 10.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  11. 11.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a yoga mat? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  14. 14.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  15. 15.Which of these needs a heat insulator? (a) a raincoat (b) a skipping rope (c) a roof sheet (d) an oven glove
  16. 16.True or false: a yoga mat needs a heat insulator. (a) False (b) True
  17. 17.🔍 Which is the odd one out? (a) copper (b) glass (c) steel (d) iron
  18. 18.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  19. 19.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  20. 20.True or false: a roof sheet needs a transparent material. (a) True (b) False
  21. 21.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  22. 22.Which of these needs a transparent material? (a) a yoga mat (b) a plug pin (c) a car windscreen (d) a tea flask lining
  23. 23.🧱 Which property matters most for a switch contact? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  24. 24.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  25. 25.Which of these needs a flexible material? (a) a car seat belt (b) a tea flask lining (c) a spectacle lens (d) a roof sheet
  26. 26.True or false: a water tank needs a waterproof material. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) steel (b) brass (c) aluminium (d) cotton cloth
  28. 28.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  30. 30.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  31. 31.True or false: a water tank needs an electrical conductor. (a) True (b) False
  32. 32.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  33. 33.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  34. 34.Which of these needs a flexible material? (a) a skipping rope (b) a plug pin (c) a boat hull (d) a car windscreen
  35. 35.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.Which of these needs a heat insulator? (a) a yoga mat (b) a cooking pot handle (c) a roof sheet (d) a raincoat
  37. 37.🔍 Which is the odd one out? (a) rubber (b) brass (c) aluminium (d) steel
  38. 38.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  39. 39.Which of these needs a waterproof material? (a) a hair band (b) the core of a wire (c) an oven glove (d) a water tank
  40. 40.True or false: a skipping rope needs a transparent material. (a) True (b) False

Answer key

  1. a conductor
  2. the core of a wire
  3. brass
  4. aluminium
  5. a roof sheet
  6. True
  7. a conductor
  8. graphite
  9. True
  10. flexible
  11. a conductor
  12. a conductor
  13. flexible
  14. wood or plastic
  15. an oven glove
  16. False
  17. glass
  18. transparent
  19. waterproof
  20. False
  21. transparent
  22. a car windscreen
  23. electrical conductor
  24. copper
  25. a car seat belt
  26. True
  27. cotton cloth
  28. a conductor
  29. glass
  30. True
  31. False
  32. waterproof
  33. heat insulator
  34. a skipping rope
  35. an insulator
  36. a cooking pot handle
  37. rubber
  38. steel
  39. a water tank
  40. False

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