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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 954 · 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 an electrical conductor? (a) a plug pin (b) a car windscreen (c) a spectacle lens (d) a tea flask lining
  2. 2.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) iron (c) rubber (d) graphite
  4. 4.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  5. 5.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  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 raincoat? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  8. 8.🧱 Which property matters most for a window pane? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  9. 9.🔍 Which is the odd one out? (a) dry wood (b) copper (c) steel (d) aluminium
  10. 10.Which of these needs an electrical conductor? (a) a window pane (b) a tea flask lining (c) a hair band (d) a switch contact
  11. 11.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) dry wood (d) aluminium
  12. 12.Which of these needs a flexible material? (a) a car seat belt (b) a boat hull (c) a raincoat (d) a cooking pot handle
  13. 13.Which of these needs an electrical conductor? (a) a cooking pot handle (b) the core of a wire (c) an umbrella cover (d) a car windscreen
  14. 14.🔍 Which is the odd one out? (a) brass (b) steel (c) iron (d) cotton cloth
  15. 15.🧱 Which property matters most for a roof sheet? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  16. 16.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  17. 17.🔍 Which is the odd one out? (a) copper (b) glass (c) dry wood (d) plastic
  18. 18.True or false: a cooking pot handle needs a transparent material. (a) False (b) True
  19. 19.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  20. 20.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  21. 21.True or false: a window pane needs a transparent material. (a) False (b) True
  22. 22.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) glass (b) rubber (c) dry wood (d) steel
  24. 24.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) rubber (b) iron (c) glass (d) cotton cloth
  27. 27.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  28. 28.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  29. 29.True or false: a hair band needs a flexible material. (a) False (b) True
  30. 30.Which of these needs a transparent material? (a) an oven glove (b) the core of a wire (c) a magnifier lens (d) a plug pin
  31. 31.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  32. 32.🔍 Which is the odd one out? (a) brass (b) iron (c) steel (d) plastic
  33. 33.True or false: a car seat belt needs a flexible material. (a) True (b) False
  34. 34.Which of these needs a waterproof material? (a) a plug pin (b) a raincoat (c) a car windscreen (d) a tea flask lining
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  37. 37.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  39. 39.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  40. 40.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) waterproof (d) heat insulator

Answer key

  1. a plug pin
  2. glass
  3. rubber
  4. plastic-coated cloth
  5. a conductor
  6. an insulator
  7. waterproof
  8. transparent
  9. dry wood
  10. a switch contact
  11. aluminium
  12. a car seat belt
  13. the core of a wire
  14. cotton cloth
  15. waterproof
  16. steel
  17. copper
  18. False
  19. wood or plastic
  20. flexible
  21. True
  22. an insulator
  23. steel
  24. a conductor
  25. True
  26. iron
  27. copper
  28. flexible
  29. True
  30. a magnifier lens
  31. heat insulator
  32. plastic
  33. True
  34. a raincoat
  35. a conductor
  36. transparent
  37. a conductor
  38. waterproof
  39. False
  40. flexible

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