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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 835 · 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 of these needs an electrical conductor? (a) a plug pin (b) a water tank (c) a car seat belt (d) a window pane
  2. 2.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  3. 3.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.Which of these needs a flexible material? (a) a magnifier lens (b) a spectacle lens (c) a window pane (d) a car seat belt
  5. 5.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  6. 6.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  7. 7.Which of these needs a flexible material? (a) a switch contact (b) a yoga mat (c) a plug pin (d) a car windscreen
  8. 8.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  9. 9.True or false: a water tank needs a waterproof material. (a) False (b) True
  10. 10.True or false: a switch contact needs a waterproof material. (a) False (b) True
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  13. 13.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) clay pottery (d) iron
  14. 14.🔍 Which is the odd one out? (a) plastic (b) iron (c) brass (d) copper
  15. 15.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  16. 16.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  17. 17.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  18. 18.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  19. 19.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  20. 20.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  21. 21.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.Which of these needs a flexible material? (a) a raincoat (b) an umbrella cover (c) a water tank (d) a hair band
  23. 23.🧱 Which property matters most for a window pane? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  24. 24.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  25. 25.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  26. 26.True or false: a window pane needs an electrical conductor. (a) False (b) True
  27. 27.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) dry wood (d) clay pottery
  29. 29.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  30. 30.True or false: a raincoat needs a transparent material. (a) True (b) False
  31. 31.Which of these needs a heat insulator? (a) a raincoat (b) a boat hull (c) a plug pin (d) a tea flask lining
  32. 32.🔍 Which is the odd one out? (a) rubber (b) glass (c) clay pottery (d) graphite
  33. 33.Which of these needs a waterproof material? (a) a car windscreen (b) a raincoat (c) a spectacle lens (d) a cooking pot handle
  34. 34.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  35. 35.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) copper (d) glass
  36. 36.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  37. 37.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  38. 38.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  39. 39.🔍 Which is the odd one out? (a) aluminium (b) steel (c) graphite (d) rubber
  40. 40.True or false: a roof sheet needs a flexible material. (a) True (b) False

Answer key

  1. a plug pin
  2. True
  3. a conductor
  4. a car seat belt
  5. flexible
  6. False
  7. a yoga mat
  8. True
  9. True
  10. False
  11. a conductor
  12. waterproof
  13. clay pottery
  14. plastic
  15. wood or plastic
  16. False
  17. copper
  18. electrical conductor
  19. False
  20. glass
  21. a conductor
  22. a hair band
  23. transparent
  24. True
  25. steel
  26. False
  27. an insulator
  28. aluminium
  29. flexible
  30. False
  31. a tea flask lining
  32. graphite
  33. a raincoat
  34. flexible
  35. copper
  36. electrical conductor
  37. waterproof
  38. transparent
  39. rubber
  40. False

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