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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 265 · 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 material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  2. 2.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  3. 3.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  4. 4.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  5. 5.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) rubber (d) graphite
  7. 7.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs a heat insulator? (a) a yoga mat (b) a cooking pot handle (c) a hair band (d) a magnifier lens
  9. 9.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  10. 10.Which of these needs a flexible material? (a) a cooking pot handle (b) an oven glove (c) a raincoat (d) a skipping rope
  11. 11.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  12. 12.Which of these needs a flexible material? (a) a cooking pot handle (b) a car seat belt (c) a plug pin (d) the core of a wire
  13. 13.🧱 Which property matters most for a window pane? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  14. 14.Which of these needs a heat insulator? (a) a plug pin (b) a magnifier lens (c) a water tank (d) an oven glove
  15. 15.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  16. 16.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  17. 17.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.Which of these needs a transparent material? (a) a switch contact (b) a cooking pot handle (c) a spectacle lens (d) an oven glove
  19. 19.Which of these needs a waterproof material? (a) a roof sheet (b) a car seat belt (c) a plug pin (d) a car windscreen
  20. 20.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  21. 21.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) brass (b) rubber (c) copper (d) graphite
  24. 24.Which of these needs an electrical conductor? (a) a skipping rope (b) a cooking pot handle (c) a spectacle lens (d) a plug pin
  25. 25.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  26. 26.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  27. 27.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🔍 Which is the odd one out? (a) copper (b) plastic (c) iron (d) graphite
  30. 30.Which of these needs an electrical conductor? (a) the core of a wire (b) a tea flask lining (c) a car windscreen (d) a cooking pot handle
  31. 31.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  32. 32.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  33. 33.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  34. 34.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  35. 35.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  36. 36.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  37. 37.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  38. 38.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) glass (d) copper
  39. 39.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  40. 40.🧱 Which property matters most for a magnifier lens? (a) transparent (b) flexible (c) waterproof (d) heat insulator

Answer key

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

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