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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 226 · 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 steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) glass (d) copper
  4. 4.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  5. 5.True or false: a skipping rope needs a flexible material. (a) True (b) False
  6. 6.True or false: a car windscreen needs a transparent material. (a) False (b) True
  7. 7.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  8. 8.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.Which of these needs a transparent material? (a) a spectacle lens (b) the core of a wire (c) a plug pin (d) a switch contact
  10. 10.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  11. 11.🧱 Which property matters most for a spectacle lens? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  12. 12.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) brass (d) graphite
  13. 13.Which of these needs a heat insulator? (a) a cooking pot handle (b) an umbrella cover (c) a yoga mat (d) a magnifier lens
  14. 14.🔍 Which is the odd one out? (a) aluminium (b) copper (c) steel (d) rubber
  15. 15.Which of these needs a flexible material? (a) a tea flask lining (b) a car windscreen (c) a car seat belt (d) an oven glove
  16. 16.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a flexible material? (a) a yoga mat (b) a water tank (c) the core of a wire (d) a boat hull
  18. 18.True or false: a boat hull needs a waterproof material. (a) True (b) False
  19. 19.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  20. 20.🧱 Which property matters most for a car windscreen? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  21. 21.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  22. 22.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  23. 23.🔍 Which is the odd one out? (a) copper (b) brass (c) plastic (d) iron
  24. 24.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  26. 26.Which of these needs a transparent material? (a) a skipping rope (b) a raincoat (c) a plug pin (d) a magnifier lens
  27. 27.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  28. 28.🧱 Which property matters most for a yoga mat? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  29. 29.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: a water tank needs a transparent material. (a) False (b) True
  31. 31.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  33. 33.Which of these needs a waterproof material? (a) the core of a wire (b) a hair band (c) a cooking pot handle (d) a boat hull
  34. 34.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) aluminium (d) steel
  35. 35.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) glass (d) cotton cloth
  36. 36.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  37. 37.Which of these needs an electrical conductor? (a) a plug pin (b) a water tank (c) a tea flask lining (d) a car windscreen
  38. 38.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs an electrical conductor? (a) an oven glove (b) a switch contact (c) a raincoat (d) a tea flask lining
  40. 40.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. a conductor
  2. transparent
  3. glass
  4. flexible
  5. True
  6. True
  7. electrical conductor
  8. an insulator
  9. a spectacle lens
  10. copper
  11. transparent
  12. dry wood
  13. a cooking pot handle
  14. rubber
  15. a car seat belt
  16. a conductor
  17. a yoga mat
  18. True
  19. False
  20. transparent
  21. wood or plastic
  22. waterproof
  23. plastic
  24. a conductor
  25. steel
  26. a magnifier lens
  27. plastic-coated cloth
  28. flexible
  29. an insulator
  30. False
  31. an insulator
  32. heat insulator
  33. a boat hull
  34. clay pottery
  35. graphite
  36. heat insulator
  37. a plug pin
  38. a conductor
  39. a switch contact
  40. an insulator

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