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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 157 · 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 heat insulator. (a) True (b) False
  2. 2.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  3. 3.Which of these needs a waterproof material? (a) a yoga mat (b) a roof sheet (c) a car seat belt (d) an oven glove
  4. 4.🔍 Which is the odd one out? (a) glass (b) graphite (c) brass (d) copper
  5. 5.True or false: a car seat belt needs a flexible material. (a) True (b) False
  6. 6.Which of these needs a waterproof material? (a) a car seat belt (b) a raincoat (c) a spectacle lens (d) a switch contact
  7. 7.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) steel (d) rubber
  8. 8.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  9. 9.🔍 Which is the odd one out? (a) aluminium (b) iron (c) copper (d) clay pottery
  10. 10.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  11. 11.True or false: a cooking pot handle needs a transparent material. (a) False (b) True
  12. 12.Which of these needs a transparent material? (a) a water tank (b) a tea flask lining (c) a car windscreen (d) a boat hull
  13. 13.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  14. 14.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) rubber (d) cotton cloth
  15. 15.Which of these needs a flexible material? (a) the core of a wire (b) a boat hull (c) a car windscreen (d) a car seat belt
  16. 16.🔍 Which is the odd one out? (a) dry wood (b) glass (c) brass (d) clay pottery
  17. 17.Which of these needs a heat insulator? (a) a roof sheet (b) a magnifier lens (c) a window pane (d) a tea flask lining
  18. 18.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  19. 19.Which of these needs a transparent material? (a) a plug pin (b) a raincoat (c) a spectacle lens (d) a roof sheet
  20. 20.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  21. 21.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.Which of these needs an electrical conductor? (a) a yoga mat (b) a magnifier lens (c) the core of a wire (d) a boat hull
  23. 23.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  24. 24.🔍 Which is the odd one out? (a) graphite (b) steel (c) aluminium (d) cotton cloth
  25. 25.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  26. 26.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  27. 27.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  28. 28.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  29. 29.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  30. 30.Which of these needs a heat insulator? (a) a raincoat (b) a window pane (c) a yoga mat (d) a cooking pot handle
  31. 31.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  32. 32.True or false: a hair band needs a waterproof material. (a) False (b) True
  33. 33.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  35. 35.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  36. 36.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  37. 37.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  39. 39.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) iron (d) copper

Answer key

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

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