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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 233 · 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 the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  2. 2.True or false: a car seat belt needs a flexible material. (a) True (b) False
  3. 3.Which of these needs a flexible material? (a) an umbrella cover (b) the core of a wire (c) a yoga mat (d) a tea flask lining
  4. 4.Which of these needs a transparent material? (a) a skipping rope (b) a car windscreen (c) a roof sheet (d) a yoga mat
  5. 5.True or false: a raincoat needs a waterproof material. (a) True (b) False
  6. 6.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  7. 7.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  8. 8.Which of these needs a flexible material? (a) a car windscreen (b) a cooking pot handle (c) a hair band (d) a boat hull
  9. 9.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.Which of these needs a flexible material? (a) a roof sheet (b) a skipping rope (c) the core of a wire (d) an umbrella cover
  12. 12.🔍 Which is the odd one out? (a) glass (b) rubber (c) brass (d) plastic
  13. 13.Which of these needs a flexible material? (a) a car seat belt (b) a tea flask lining (c) a switch contact (d) a car windscreen
  14. 14.🔍 Which is the odd one out? (a) rubber (b) iron (c) graphite (d) steel
  15. 15.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  16. 16.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  17. 17.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.Which of these needs a waterproof material? (a) a spectacle lens (b) an umbrella cover (c) a magnifier lens (d) a tea flask lining
  19. 19.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  20. 20.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) glass (b) rubber (c) steel (d) clay pottery
  22. 22.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🔍 Which is the odd one out? (a) plastic (b) iron (c) rubber (d) glass
  24. 24.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  25. 25.True or false: a yoga mat needs a flexible material. (a) False (b) True
  26. 26.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  27. 27.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) rubber (d) glass
  29. 29.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  30. 30.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  31. 31.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  32. 32.Which of these needs a transparent material? (a) the core of a wire (b) a boat hull (c) a switch contact (d) a spectacle lens
  33. 33.🔍 Which is the odd one out? (a) glass (b) rubber (c) dry wood (d) copper
  34. 34.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) copper (d) aluminium
  35. 35.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  38. 38.True or false: a water tank needs a heat insulator. (a) False (b) True
  39. 39.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.Which of these needs an electrical conductor? (a) an umbrella cover (b) a car seat belt (c) an oven glove (d) a switch contact

Answer key

  1. steel
  2. True
  3. a yoga mat
  4. a car windscreen
  5. True
  6. flexible
  7. glass
  8. a hair band
  9. a conductor
  10. an insulator
  11. a skipping rope
  12. brass
  13. a car seat belt
  14. rubber
  15. copper
  16. electrical conductor
  17. an insulator
  18. an umbrella cover
  19. transparent
  20. True
  21. steel
  22. an insulator
  23. iron
  24. flexible
  25. True
  26. heat insulator
  27. wood or plastic
  28. aluminium
  29. plastic-coated cloth
  30. waterproof
  31. heat insulator
  32. a spectacle lens
  33. copper
  34. clay pottery
  35. a conductor
  36. a conductor
  37. transparent
  38. False
  39. a conductor
  40. a switch contact

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