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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 101 · 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) dry wood (b) plastic (c) graphite (d) rubber
  2. 2.Which of these needs a heat insulator? (a) the core of a wire (b) an oven glove (c) a magnifier lens (d) a car seat belt
  3. 3.🔍 Which is the odd one out? (a) copper (b) steel (c) aluminium (d) glass
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) steel (d) copper
  5. 5.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) rubber (d) clay pottery
  6. 6.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  7. 7.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) iron (d) cotton cloth
  8. 8.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  11. 11.True or false: a water tank needs a flexible material. (a) False (b) True
  12. 12.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  14. 14.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  17. 17.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  18. 18.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  19. 19.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  21. 21.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  22. 22.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.Which of these needs a transparent material? (a) a switch contact (b) a car windscreen (c) a skipping rope (d) an umbrella cover
  24. 24.Which of these needs an electrical conductor? (a) a car windscreen (b) the core of a wire (c) an oven glove (d) a yoga mat
  25. 25.Which of these needs a flexible material? (a) a skipping rope (b) a tea flask lining (c) a raincoat (d) a cooking pot handle
  26. 26.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  27. 27.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  29. 29.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  30. 30.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  31. 31.🔍 Which is the odd one out? (a) iron (b) rubber (c) aluminium (d) steel
  32. 32.Which of these needs a waterproof material? (a) a hair band (b) a switch contact (c) a boat hull (d) a spectacle lens
  33. 33.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  34. 34.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  35. 35.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  36. 36.🔍 Which is the odd one out? (a) copper (b) graphite (c) aluminium (d) clay pottery
  37. 37.Which of these needs an electrical conductor? (a) a switch contact (b) a yoga mat (c) a tea flask lining (d) a water tank
  38. 38.Which of these needs a flexible material? (a) a car seat belt (b) a switch contact (c) a boat hull (d) an oven glove
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic

Answer key

  1. graphite
  2. an oven glove
  3. glass
  4. plastic
  5. aluminium
  6. transparent
  7. cotton cloth
  8. a conductor
  9. a conductor
  10. flexible
  11. False
  12. a conductor
  13. flexible
  14. an insulator
  15. an insulator
  16. waterproof
  17. steel
  18. transparent
  19. an insulator
  20. flexible
  21. copper
  22. an insulator
  23. a car windscreen
  24. the core of a wire
  25. a skipping rope
  26. False
  27. a conductor
  28. False
  29. waterproof
  30. heat insulator
  31. rubber
  32. a boat hull
  33. waterproof
  34. False
  35. electrical conductor
  36. clay pottery
  37. a switch contact
  38. a car seat belt
  39. an insulator
  40. wood or plastic

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