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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 958 · 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) steel (b) iron (c) clay pottery (d) copper
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) copper (d) brass
  5. 5.Which of these needs a waterproof material? (a) the core of a wire (b) a tea flask lining (c) an oven glove (d) a water tank
  6. 6.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) rubber (d) glass
  7. 7.Which of these needs a heat insulator? (a) a skipping rope (b) a yoga mat (c) a magnifier lens (d) a tea flask lining
  8. 8.Which of these needs a waterproof material? (a) a plug pin (b) a car seat belt (c) the core of a wire (d) a roof sheet
  9. 9.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  10. 10.Which of these needs a flexible material? (a) a switch contact (b) a roof sheet (c) a yoga mat (d) a boat hull
  11. 11.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  12. 12.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  13. 13.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  14. 14.True or false: a spectacle lens needs an electrical conductor. (a) False (b) True
  15. 15.Which of these needs a flexible material? (a) a raincoat (b) a car seat belt (c) a plug pin (d) an umbrella cover
  16. 16.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) plastic (d) clay pottery
  17. 17.True or false: a boat hull needs a transparent material. (a) False (b) True
  18. 18.Which of these needs an electrical conductor? (a) a yoga mat (b) a roof sheet (c) a magnifier lens (d) a plug pin
  19. 19.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: a car windscreen needs a transparent material. (a) False (b) True
  22. 22.🔍 Which is the odd one out? (a) brass (b) glass (c) iron (d) steel
  23. 23.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  25. 25.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) graphite (d) glass
  26. 26.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  27. 27.Which of these needs an electrical conductor? (a) the core of a wire (b) a raincoat (c) a magnifier lens (d) an oven glove
  28. 28.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  29. 29.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  30. 30.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  31. 31.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.True or false: a car seat belt needs a flexible material. (a) False (b) True
  33. 33.🧱 Which property matters most for a tea flask lining? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  34. 34.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  36. 36.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  37. 37.True or false: a roof sheet needs a flexible material. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) iron (d) cotton cloth
  39. 39.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  40. 40.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. clay pottery
  2. a conductor
  3. an insulator
  4. cotton cloth
  5. a water tank
  6. brass
  7. a tea flask lining
  8. a roof sheet
  9. waterproof
  10. a yoga mat
  11. transparent
  12. True
  13. transparent
  14. False
  15. a car seat belt
  16. aluminium
  17. False
  18. a plug pin
  19. wood or plastic
  20. an insulator
  21. True
  22. glass
  23. a conductor
  24. plastic-coated cloth
  25. graphite
  26. glass
  27. the core of a wire
  28. electrical conductor
  29. electrical conductor
  30. False
  31. a conductor
  32. True
  33. heat insulator
  34. an insulator
  35. waterproof
  36. True
  37. False
  38. iron
  39. heat insulator
  40. an insulator

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