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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 421 · 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 material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  2. 2.Which of these needs a transparent material? (a) a hair band (b) a window pane (c) a cooking pot handle (d) a plug pin
  3. 3.🔍 Which is the odd one out? (a) glass (b) copper (c) steel (d) graphite
  4. 4.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  5. 5.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.Which of these needs an electrical conductor? (a) a yoga mat (b) a spectacle lens (c) a switch contact (d) an oven glove
  7. 7.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  8. 8.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  9. 9.Which of these needs an electrical conductor? (a) a boat hull (b) an oven glove (c) a plug pin (d) a skipping rope
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.Which of these needs a transparent material? (a) a spectacle lens (b) a yoga mat (c) a tea flask lining (d) a hair band
  12. 12.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a yoga mat? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  15. 15.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) dry wood (d) cotton cloth
  16. 16.Which of these needs a heat insulator? (a) a car windscreen (b) a spectacle lens (c) a water tank (d) a tea flask lining
  17. 17.Which of these needs a waterproof material? (a) a window pane (b) a cooking pot handle (c) a spectacle lens (d) a roof sheet
  18. 18.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  19. 19.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  20. 20.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  21. 21.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  22. 22.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  23. 23.True or false: a raincoat needs a flexible material. (a) False (b) True
  24. 24.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  25. 25.True or false: a boat hull needs a waterproof material. (a) False (b) True
  26. 26.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🔍 Which is the odd one out? (a) copper (b) glass (c) rubber (d) cotton cloth
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) iron (d) copper
  29. 29.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) rubber (d) glass
  30. 30.🔍 Which is the odd one out? (a) brass (b) graphite (c) steel (d) clay pottery
  31. 31.🔍 Which is the odd one out? (a) rubber (b) brass (c) cotton cloth (d) glass
  32. 32.True or false: a plug pin needs a waterproof material. (a) False (b) True
  33. 33.True or false: an oven glove needs a heat insulator. (a) False (b) True
  34. 34.True or false: a water tank needs a waterproof material. (a) False (b) True
  35. 35.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  37. 37.Which of these needs an electrical conductor? (a) a window pane (b) an umbrella cover (c) the core of a wire (d) an oven glove
  38. 38.True or false: a skipping rope needs a flexible material. (a) False (b) True
  39. 39.Which of these needs a heat insulator? (a) a boat hull (b) a car windscreen (c) a cooking pot handle (d) a spectacle lens
  40. 40.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron

Answer key

  1. glass
  2. a window pane
  3. glass
  4. steel
  5. a conductor
  6. a switch contact
  7. True
  8. flexible
  9. a plug pin
  10. a conductor
  11. a spectacle lens
  12. flexible
  13. an insulator
  14. flexible
  15. iron
  16. a tea flask lining
  17. a roof sheet
  18. plastic-coated cloth
  19. copper
  20. electrical conductor
  21. waterproof
  22. waterproof
  23. False
  24. waterproof
  25. True
  26. a conductor
  27. copper
  28. dry wood
  29. graphite
  30. clay pottery
  31. brass
  32. False
  33. True
  34. True
  35. a conductor
  36. False
  37. the core of a wire
  38. True
  39. a cooking pot handle
  40. wood or plastic

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