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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 820 · 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 of these needs a heat insulator? (a) a window pane (b) an oven glove (c) a roof sheet (d) a raincoat
  2. 2.🔍 Which is the odd one out? (a) copper (b) steel (c) iron (d) clay pottery
  3. 3.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.True or false: the core of a wire needs a transparent material. (a) False (b) True
  5. 5.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  8. 8.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  10. 10.🔍 Which is the odd one out? (a) steel (b) brass (c) iron (d) glass
  11. 11.True or false: a boat hull needs a flexible material. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) iron (b) aluminium (c) cotton cloth (d) graphite
  13. 13.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  14. 14.🔍 Which is the odd one out? (a) steel (b) graphite (c) aluminium (d) plastic
  15. 15.Which of these needs a heat insulator? (a) an umbrella cover (b) a yoga mat (c) a water tank (d) a cooking pot handle
  16. 16.True or false: a skipping rope needs a flexible material. (a) True (b) False
  17. 17.Which of these needs an electrical conductor? (a) a car windscreen (b) a raincoat (c) an oven glove (d) a switch contact
  18. 18.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  19. 19.True or false: a raincoat needs a waterproof material. (a) False (b) True
  20. 20.Which of these needs a transparent material? (a) the core of a wire (b) a plug pin (c) a spectacle lens (d) a raincoat
  21. 21.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  22. 22.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  24. 24.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) plastic (d) dry wood
  25. 25.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  26. 26.🧱 Which property matters most for a plug pin? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  27. 27.Which of these needs an electrical conductor? (a) a spectacle lens (b) a skipping rope (c) an umbrella cover (d) a plug pin
  28. 28.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  29. 29.True or false: a car seat belt needs a flexible material. (a) False (b) True
  30. 30.True or false: a hair band needs a flexible material. (a) True (b) False
  31. 31.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  32. 32.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  33. 33.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  34. 34.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a hair band? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  36. 36.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  37. 37.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  38. 38.True or false: a boat hull needs a waterproof material. (a) False (b) True
  39. 39.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: a cooking pot handle needs a flexible material. (a) True (b) False

Answer key

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

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