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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 75 · 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 car seat belt? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  2. 2.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  4. 4.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  5. 5.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  6. 6.🔍 Which is the odd one out? (a) copper (b) glass (c) steel (d) aluminium
  7. 7.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  8. 8.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  9. 9.Which of these needs an electrical conductor? (a) an umbrella cover (b) an oven glove (c) a plug pin (d) a roof sheet
  10. 10.🧱 Which property matters most for a car windscreen? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  11. 11.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  13. 13.True or false: a boat hull needs a waterproof material. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) clay pottery (d) graphite
  15. 15.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) glass (d) steel
  16. 16.True or false: an oven glove needs a transparent material. (a) True (b) False
  17. 17.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) an umbrella cover (d) a spectacle lens
  18. 18.Which of these needs a waterproof material? (a) a roof sheet (b) a magnifier lens (c) a skipping rope (d) a plug pin
  19. 19.True or false: a window pane needs a transparent material. (a) True (b) False
  20. 20.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  21. 21.True or false: a water tank needs a transparent material. (a) False (b) True
  22. 22.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  23. 23.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a raincoat needs a waterproof material. (a) False (b) True
  26. 26.Which of these needs a heat insulator? (a) a cooking pot handle (b) a roof sheet (c) a raincoat (d) a spectacle lens
  27. 27.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) copper (d) aluminium
  29. 29.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs an electrical conductor? (a) a magnifier lens (b) a boat hull (c) a car windscreen (d) a switch contact
  32. 32.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) dry wood (d) iron
  33. 33.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  35. 35.Which of these needs a flexible material? (a) a yoga mat (b) a spectacle lens (c) a raincoat (d) a roof sheet
  36. 36.Which of these needs a flexible material? (a) a car seat belt (b) a water tank (c) a roof sheet (d) a spectacle lens
  37. 37.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  38. 38.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  39. 39.Which of these needs a flexible material? (a) a tea flask lining (b) a magnifier lens (c) a plug pin (d) a hair band
  40. 40.Which of these needs a waterproof material? (a) a yoga mat (b) the core of a wire (c) a boat hull (d) an oven glove

Answer key

  1. flexible
  2. a conductor
  3. flexible
  4. False
  5. copper
  6. glass
  7. waterproof
  8. glass
  9. a plug pin
  10. transparent
  11. a conductor
  12. steel
  13. True
  14. graphite
  15. steel
  16. False
  17. the core of a wire
  18. a roof sheet
  19. True
  20. True
  21. False
  22. wood or plastic
  23. a conductor
  24. an insulator
  25. True
  26. a cooking pot handle
  27. True
  28. clay pottery
  29. electrical conductor
  30. an insulator
  31. a switch contact
  32. dry wood
  33. a conductor
  34. transparent
  35. a yoga mat
  36. a car seat belt
  37. True
  38. heat insulator
  39. a hair band
  40. a boat hull

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