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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 91 · 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) graphite (b) clay pottery (c) dry wood (d) rubber
  2. 2.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  3. 3.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  4. 4.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  5. 5.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  6. 6.Which of these needs a waterproof material? (a) a plug pin (b) a boat hull (c) a yoga mat (d) a switch contact
  7. 7.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🔍 Which is the odd one out? (a) glass (b) aluminium (c) graphite (d) steel
  9. 9.🔍 Which is the odd one out? (a) glass (b) iron (c) plastic (d) cotton cloth
  10. 10.Which of these needs an electrical conductor? (a) a skipping rope (b) a yoga mat (c) a hair band (d) the core of a wire
  11. 11.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.Which of these needs a transparent material? (a) the core of a wire (b) a roof sheet (c) a spectacle lens (d) a water tank
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  15. 15.True or false: a skipping rope needs a heat insulator. (a) False (b) True
  16. 16.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  18. 18.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  19. 19.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.Which of these needs an electrical conductor? (a) a water tank (b) a window pane (c) a spectacle lens (d) a switch contact
  21. 21.True or false: a window pane needs an electrical conductor. (a) False (b) True
  22. 22.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  24. 24.Which of these needs a waterproof material? (a) a skipping rope (b) an oven glove (c) a water tank (d) a yoga mat
  25. 25.True or false: a cooking pot handle needs a transparent material. (a) False (b) True
  26. 26.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.True or false: a roof sheet needs a transparent material. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) plastic (b) copper (c) aluminium (d) iron
  29. 29.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) steel (d) iron
  30. 30.True or false: an oven glove needs a flexible material. (a) False (b) True
  31. 31.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  32. 32.True or false: a raincoat needs a waterproof material. (a) False (b) True
  33. 33.Which of these needs a flexible material? (a) the core of a wire (b) an oven glove (c) a yoga mat (d) a car windscreen
  34. 34.Which of these needs an electrical conductor? (a) a car seat belt (b) a plug pin (c) a car windscreen (d) a yoga mat
  35. 35.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  36. 36.🔍 Which is the odd one out? (a) graphite (b) rubber (c) copper (d) steel
  37. 37.🧱 Which property matters most for a hair band? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  38. 38.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) plastic (b) rubber (c) brass (d) dry wood
  40. 40.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible

Answer key

  1. graphite
  2. heat insulator
  3. flexible
  4. heat insulator
  5. steel
  6. a boat hull
  7. a conductor
  8. glass
  9. iron
  10. the core of a wire
  11. an insulator
  12. a spectacle lens
  13. an insulator
  14. transparent
  15. False
  16. a conductor
  17. glass
  18. electrical conductor
  19. a conductor
  20. a switch contact
  21. False
  22. a conductor
  23. flexible
  24. a water tank
  25. False
  26. a conductor
  27. False
  28. plastic
  29. clay pottery
  30. False
  31. wood or plastic
  32. True
  33. a yoga mat
  34. a plug pin
  35. transparent
  36. rubber
  37. flexible
  38. True
  39. brass
  40. heat insulator

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