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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 739 · 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 is the odd one out? (a) dry wood (b) glass (c) brass (d) plastic
  2. 2.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  3. 3.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) aluminium (d) plastic
  4. 4.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🔍 Which is the odd one out? (a) plastic (b) glass (c) steel (d) cotton cloth
  6. 6.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) copper (d) graphite
  7. 7.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  8. 8.Which of these needs a heat insulator? (a) a skipping rope (b) the core of a wire (c) a car seat belt (d) a cooking pot handle
  9. 9.Which of these needs a flexible material? (a) a cooking pot handle (b) the core of a wire (c) a car seat belt (d) an umbrella cover
  10. 10.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which property matters most for a yoga mat? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  12. 12.Which of these needs a heat insulator? (a) a tea flask lining (b) a skipping rope (c) a spectacle lens (d) a water tank
  13. 13.🔍 Which is the odd one out? (a) graphite (b) iron (c) aluminium (d) rubber
  14. 14.True or false: a yoga mat needs a flexible material. (a) True (b) False
  15. 15.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) rubber (d) clay pottery
  17. 17.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  18. 18.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  20. 20.True or false: an oven glove needs a transparent material. (a) True (b) False
  21. 21.Which of these needs an electrical conductor? (a) an oven glove (b) a car windscreen (c) a roof sheet (d) a switch contact
  22. 22.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  23. 23.Which of these needs a waterproof material? (a) a yoga mat (b) a tea flask lining (c) a skipping rope (d) an umbrella cover
  24. 24.True or false: a skipping rope needs a flexible material. (a) False (b) True
  25. 25.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  26. 26.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🔍 Which is the odd one out? (a) iron (b) steel (c) copper (d) glass
  28. 28.Which of these needs a transparent material? (a) a cooking pot handle (b) the core of a wire (c) a boat hull (d) a spectacle lens
  29. 29.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  30. 30.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  31. 31.True or false: a switch contact needs a waterproof material. (a) True (b) False
  32. 32.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  33. 33.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  34. 34.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) iron (d) copper
  35. 35.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  37. 37.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  38. 38.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  39. 39.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  40. 40.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) heat insulator (d) waterproof

Answer key

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

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