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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 916 · 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.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  3. 3.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  4. 4.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  5. 5.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  6. 6.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  7. 7.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  8. 8.🔍 Which is the odd one out? (a) glass (b) copper (c) brass (d) iron
  9. 9.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  10. 10.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) iron (d) aluminium
  11. 11.Which of these needs a heat insulator? (a) a spectacle lens (b) the core of a wire (c) an oven glove (d) a hair band
  12. 12.🔍 Which is the odd one out? (a) brass (b) aluminium (c) iron (d) plastic
  13. 13.Which of these needs a flexible material? (a) a magnifier lens (b) an oven glove (c) a skipping rope (d) a switch contact
  14. 14.True or false: a boat hull needs a flexible material. (a) False (b) True
  15. 15.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  16. 16.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) plastic (d) dry wood
  17. 17.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  18. 18.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  19. 19.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  20. 20.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) plastic (d) steel
  22. 22.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  23. 23.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  24. 24.Which of these needs a flexible material? (a) an umbrella cover (b) a window pane (c) a car windscreen (d) a car seat belt
  25. 25.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) brass (d) graphite
  26. 26.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  27. 27.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: a hair band needs a transparent material. (a) False (b) True
  29. 29.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  30. 30.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  31. 31.Which of these needs a heat insulator? (a) a switch contact (b) a car windscreen (c) a tea flask lining (d) a yoga mat
  32. 32.Which of these needs a transparent material? (a) a water tank (b) a cooking pot handle (c) a spectacle lens (d) a switch contact
  33. 33.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  34. 34.True or false: a raincoat needs a transparent material. (a) True (b) False
  35. 35.Which of these needs a transparent material? (a) a skipping rope (b) a hair band (c) a magnifier lens (d) a yoga mat
  36. 36.Which of these needs a waterproof material? (a) a car windscreen (b) a window pane (c) a car seat belt (d) a raincoat
  37. 37.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.True or false: an oven glove needs a heat insulator. (a) True (b) False
  40. 40.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic

Answer key

  1. an insulator
  2. electrical conductor
  3. transparent
  4. True
  5. flexible
  6. flexible
  7. False
  8. glass
  9. True
  10. clay pottery
  11. an oven glove
  12. plastic
  13. a skipping rope
  14. False
  15. heat insulator
  16. copper
  17. steel
  18. glass
  19. heat insulator
  20. a conductor
  21. steel
  22. transparent
  23. waterproof
  24. a car seat belt
  25. cotton cloth
  26. flexible
  27. a conductor
  28. False
  29. copper
  30. plastic-coated cloth
  31. a tea flask lining
  32. a spectacle lens
  33. waterproof
  34. False
  35. a magnifier lens
  36. a raincoat
  37. an insulator
  38. an insulator
  39. True
  40. wood or plastic

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