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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 560 · 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.True or false: a boat hull needs a waterproof material. (a) True (b) False
  2. 2.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  5. 5.Which of these needs an electrical conductor? (a) a hair band (b) a raincoat (c) a plug pin (d) an umbrella cover
  6. 6.True or false: a plug pin needs a transparent material. (a) False (b) True
  7. 7.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  8. 8.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  9. 9.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  10. 10.🔍 Which is the odd one out? (a) rubber (b) brass (c) cotton cloth (d) clay pottery
  11. 11.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  12. 12.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) steel (d) clay pottery
  14. 14.🧱 Which property matters most for an oven glove? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  15. 15.True or false: a plug pin needs a waterproof material. (a) False (b) True
  16. 16.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  17. 17.Which of these needs a transparent material? (a) the core of a wire (b) a tea flask lining (c) a hair band (d) a window pane
  18. 18.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  19. 19.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  20. 20.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  22. 22.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) aluminium (d) glass
  23. 23.🔍 Which is the odd one out? (a) plastic (b) iron (c) clay pottery (d) cotton cloth
  24. 24.True or false: a water tank needs a heat insulator. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) plastic (d) copper
  26. 26.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) iron (b) steel (c) aluminium (d) cotton cloth
  28. 28.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  29. 29.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  30. 30.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  31. 31.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  32. 32.🔍 Which is the odd one out? (a) copper (b) aluminium (c) steel (d) plastic
  33. 33.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  34. 34.True or false: a car seat belt needs a flexible material. (a) True (b) False
  35. 35.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.Which of these needs a heat insulator? (a) a roof sheet (b) an oven glove (c) a switch contact (d) a raincoat
  37. 37.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  38. 38.Which of these needs a waterproof material? (a) a yoga mat (b) the core of a wire (c) a raincoat (d) a cooking pot handle
  39. 39.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  40. 40.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. True
  2. a conductor
  3. a conductor
  4. copper
  5. a plug pin
  6. False
  7. flexible
  8. flexible
  9. plastic-coated cloth
  10. brass
  11. wood or plastic
  12. True
  13. steel
  14. heat insulator
  15. False
  16. False
  17. a window pane
  18. False
  19. flexible
  20. an insulator
  21. steel
  22. aluminium
  23. iron
  24. False
  25. copper
  26. True
  27. cotton cloth
  28. electrical conductor
  29. False
  30. waterproof
  31. True
  32. plastic
  33. False
  34. True
  35. an insulator
  36. an oven glove
  37. True
  38. a raincoat
  39. glass
  40. a conductor

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