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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 400 · 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 is the odd one out? (a) copper (b) rubber (c) cotton cloth (d) plastic
  2. 2.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.Which of these needs a transparent material? (a) a yoga mat (b) a skipping rope (c) a window pane (d) a water tank
  5. 5.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  6. 6.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  7. 7.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  8. 8.Which of these needs a heat insulator? (a) a cooking pot handle (b) a magnifier lens (c) a car windscreen (d) a spectacle lens
  9. 9.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  10. 10.Which of these needs an electrical conductor? (a) a plug pin (b) an umbrella cover (c) a roof sheet (d) an oven glove
  11. 11.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  13. 13.True or false: a skipping rope needs a flexible material. (a) True (b) False
  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 an electrical conductor? (a) a cooking pot handle (b) a magnifier lens (c) a car seat belt (d) a switch contact
  16. 16.Which of these needs a waterproof material? (a) the core of a wire (b) a yoga mat (c) an umbrella cover (d) a car seat belt
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  19. 19.Which of these needs a heat insulator? (a) an umbrella cover (b) a hair band (c) a skipping rope (d) a tea flask lining
  20. 20.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  21. 21.True or false: a car seat belt needs a flexible material. (a) False (b) True
  22. 22.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  23. 23.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  24. 24.Which of these needs a waterproof material? (a) a tea flask lining (b) a plug pin (c) a car seat belt (d) a boat hull
  25. 25.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  26. 26.Which of these needs a flexible material? (a) the core of a wire (b) a car seat belt (c) a boat hull (d) a raincoat
  27. 27.Which of these needs an electrical conductor? (a) a spectacle lens (b) the core of a wire (c) a boat hull (d) a water tank
  28. 28.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  29. 29.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  30. 30.True or false: an oven glove needs a heat insulator. (a) True (b) False
  31. 31.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) dry wood (b) copper (c) graphite (d) iron
  33. 33.True or false: a hair band needs a flexible material. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) aluminium (b) copper (c) clay pottery (d) graphite
  35. 35.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) aluminium (d) plastic
  36. 36.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) iron (d) aluminium
  37. 37.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  38. 38.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  39. 39.True or false: a cooking pot handle needs a transparent material. (a) True (b) False
  40. 40.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) waterproof (d) transparent

Answer key

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

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