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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 249 · 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) glass (b) rubber (c) plastic (d) aluminium
  2. 2.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  4. 4.🧱 Which property matters most for a spectacle lens? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  5. 5.🔍 Which is the odd one out? (a) brass (b) aluminium (c) dry wood (d) iron
  6. 6.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  7. 7.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  8. 8.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a boat hull needs a waterproof material. (a) True (b) False
  10. 10.Which of these needs an electrical conductor? (a) a water tank (b) a spectacle lens (c) an oven glove (d) a plug pin
  11. 11.Which of these needs a flexible material? (a) an umbrella cover (b) a plug pin (c) a hair band (d) an oven glove
  12. 12.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  13. 13.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a heat insulator? (a) a switch contact (b) a tea flask lining (c) a car windscreen (d) a raincoat
  16. 16.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) dry wood (d) plastic
  17. 17.True or false: a roof sheet needs a flexible material. (a) False (b) True
  18. 18.Which of these needs an electrical conductor? (a) a raincoat (b) a window pane (c) a switch contact (d) a roof sheet
  19. 19.Which of these needs an electrical conductor? (a) a yoga mat (b) an umbrella cover (c) the core of a wire (d) a hair band
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  22. 22.True or false: a raincoat needs a flexible material. (a) True (b) False
  23. 23.True or false: a yoga mat needs a flexible material. (a) True (b) False
  24. 24.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  25. 25.🧱 Which property matters most for a switch contact? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  26. 26.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  27. 27.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.Which of these needs a transparent material? (a) a skipping rope (b) an umbrella cover (c) the core of a wire (d) a window pane
  30. 30.Which of these needs a flexible material? (a) a switch contact (b) a plug pin (c) a yoga mat (d) a roof sheet
  31. 31.Which of these needs a heat insulator? (a) a raincoat (b) a boat hull (c) a cooking pot handle (d) a car windscreen
  32. 32.🧱 Which property matters most for a skipping rope? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  33. 33.🔍 Which is the odd one out? (a) rubber (b) brass (c) iron (d) aluminium
  34. 34.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  35. 35.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  36. 36.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.True or false: a roof sheet needs a transparent material. (a) True (b) False
  38. 38.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  39. 39.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  40. 40.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. aluminium
  2. an insulator
  3. flexible
  4. transparent
  5. dry wood
  6. copper
  7. electrical conductor
  8. an insulator
  9. True
  10. a plug pin
  11. a hair band
  12. glass
  13. steel
  14. a conductor
  15. a tea flask lining
  16. iron
  17. False
  18. a switch contact
  19. the core of a wire
  20. an insulator
  21. plastic-coated cloth
  22. False
  23. True
  24. heat insulator
  25. electrical conductor
  26. waterproof
  27. a conductor
  28. an insulator
  29. a window pane
  30. a yoga mat
  31. a cooking pot handle
  32. flexible
  33. rubber
  34. True
  35. transparent
  36. a conductor
  37. False
  38. True
  39. waterproof
  40. a conductor

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