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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 168 · 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 a flexible material? (a) a skipping rope (b) a magnifier lens (c) a switch contact (d) a tea flask lining
  2. 2.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.Which of these needs a waterproof material? (a) a water tank (b) a magnifier lens (c) a car seat belt (d) a cooking pot handle
  7. 7.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  8. 8.Which of these needs a waterproof material? (a) a spectacle lens (b) a tea flask lining (c) a skipping rope (d) a roof sheet
  9. 9.🧱 Which property matters most for a water tank? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  10. 10.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  11. 11.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  12. 12.🔍 Which is the odd one out? (a) aluminium (b) copper (c) iron (d) clay pottery
  13. 13.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.Which of these needs a waterproof material? (a) a window pane (b) an oven glove (c) an umbrella cover (d) a tea flask lining
  15. 15.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  16. 16.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  17. 17.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.Which of these needs a heat insulator? (a) a switch contact (b) a hair band (c) a car windscreen (d) a cooking pot handle
  19. 19.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  20. 20.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  21. 21.Which of these needs a transparent material? (a) a plug pin (b) a magnifier lens (c) a water tank (d) a cooking pot handle
  22. 22.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) glass (d) steel
  23. 23.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  24. 24.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  26. 26.Which of these needs a transparent material? (a) a spectacle lens (b) a raincoat (c) an oven glove (d) a water tank
  27. 27.🔍 Which is the odd one out? (a) graphite (b) steel (c) copper (d) glass
  28. 28.🔍 Which is the odd one out? (a) dry wood (b) iron (c) plastic (d) clay pottery
  29. 29.🧱 Which property matters most for a yoga mat? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  30. 30.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🔍 Which is the odd one out? (a) plastic (b) steel (c) copper (d) iron
  32. 32.True or false: a hair band needs an electrical conductor. (a) True (b) False
  33. 33.Which of these needs an electrical conductor? (a) a switch contact (b) a window pane (c) a car seat belt (d) a magnifier lens
  34. 34.True or false: a plug pin needs a heat insulator. (a) True (b) False
  35. 35.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  36. 36.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  37. 37.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  38. 38.Which of these needs an electrical conductor? (a) a window pane (b) a spectacle lens (c) a cooking pot handle (d) a plug pin
  39. 39.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. a skipping rope
  2. an insulator
  3. an insulator
  4. a conductor
  5. a conductor
  6. a water tank
  7. False
  8. a roof sheet
  9. waterproof
  10. heat insulator
  11. flexible
  12. clay pottery
  13. an insulator
  14. an umbrella cover
  15. glass
  16. copper
  17. an insulator
  18. a cooking pot handle
  19. steel
  20. electrical conductor
  21. a magnifier lens
  22. steel
  23. waterproof
  24. a conductor
  25. transparent
  26. a spectacle lens
  27. glass
  28. iron
  29. flexible
  30. a conductor
  31. plastic
  32. False
  33. a switch contact
  34. False
  35. transparent
  36. True
  37. True
  38. a plug pin
  39. wood or plastic
  40. a conductor

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