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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 277 · 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 switch contact (b) a water tank (c) a hair band (d) a car windscreen
  2. 2.🔍 Which is the odd one out? (a) copper (b) iron (c) cotton cloth (d) aluminium
  3. 3.Which of these needs a transparent material? (a) a skipping rope (b) a yoga mat (c) a window pane (d) a tea flask lining
  4. 4.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  5. 5.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🔍 Which is the odd one out? (a) plastic (b) graphite (c) glass (d) cotton cloth
  8. 8.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  10. 10.Which of these needs a heat insulator? (a) a yoga mat (b) a spectacle lens (c) a magnifier lens (d) a cooking pot handle
  11. 11.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which property matters most for a spectacle lens? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  13. 13.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  14. 14.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  15. 15.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  16. 16.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  17. 17.Which of these needs a flexible material? (a) a tea flask lining (b) an umbrella cover (c) a raincoat (d) a skipping rope
  18. 18.Which of these needs a heat insulator? (a) a tea flask lining (b) a car windscreen (c) an umbrella cover (d) a water tank
  19. 19.🔍 Which is the odd one out? (a) aluminium (b) glass (c) dry wood (d) plastic
  20. 20.Which of these needs an electrical conductor? (a) a hair band (b) a tea flask lining (c) an oven glove (d) the core of a wire
  21. 21.Which of these needs a flexible material? (a) a switch contact (b) an oven glove (c) a water tank (d) a car seat belt
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.True or false: an oven glove needs a transparent material. (a) True (b) False
  24. 24.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  25. 25.🔍 Which is the odd one out? (a) aluminium (b) glass (c) graphite (d) copper
  26. 26.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  27. 27.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  28. 28.Which of these needs a transparent material? (a) the core of a wire (b) a hair band (c) a roof sheet (d) a magnifier lens
  29. 29.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  30. 30.🔍 Which is the odd one out? (a) brass (b) dry wood (c) cotton cloth (d) rubber
  31. 31.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  33. 33.True or false: a plug pin needs a waterproof material. (a) False (b) True
  34. 34.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  35. 35.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  36. 36.🧱 Which property matters most for a plug pin? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  37. 37.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  38. 38.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  39. 39.🔍 Which is the odd one out? (a) iron (b) plastic (c) steel (d) brass
  40. 40.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. a hair band
  2. cotton cloth
  3. a window pane
  4. copper
  5. a conductor
  6. an insulator
  7. graphite
  8. a conductor
  9. flexible
  10. a cooking pot handle
  11. an insulator
  12. transparent
  13. glass
  14. False
  15. waterproof
  16. flexible
  17. a skipping rope
  18. a tea flask lining
  19. aluminium
  20. the core of a wire
  21. a car seat belt
  22. a conductor
  23. False
  24. wood or plastic
  25. glass
  26. transparent
  27. waterproof
  28. a magnifier lens
  29. plastic-coated cloth
  30. brass
  31. an insulator
  32. True
  33. False
  34. False
  35. waterproof
  36. electrical conductor
  37. steel
  38. electrical conductor
  39. plastic
  40. a conductor

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