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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 756 · 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 waterproof material? (a) a car windscreen (b) a cooking pot handle (c) a raincoat (d) an oven glove
  2. 2.🔍 Which is the odd one out? (a) rubber (b) steel (c) plastic (d) glass
  3. 3.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  4. 4.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  5. 5.Which of these needs a flexible material? (a) a yoga mat (b) a raincoat (c) a water tank (d) the core of a wire
  6. 6.🔍 Which is the odd one out? (a) graphite (b) brass (c) glass (d) aluminium
  7. 7.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  9. 9.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  10. 10.🧱 Which property matters most for a car windscreen? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  11. 11.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  12. 12.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  13. 13.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a heat insulator? (a) a raincoat (b) a roof sheet (c) a tea flask lining (d) a car seat belt
  15. 15.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  17. 17.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  18. 18.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) aluminium (d) plastic
  20. 20.True or false: a switch contact needs a waterproof material. (a) True (b) False
  21. 21.Which of these needs an electrical conductor? (a) a yoga mat (b) the core of a wire (c) a water tank (d) a raincoat
  22. 22.True or false: a skipping rope needs a transparent material. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) iron (d) aluminium
  24. 24.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  25. 25.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  26. 26.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  27. 27.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: a car windscreen needs a transparent material. (a) False (b) True
  29. 29.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🔍 Which is the odd one out? (a) copper (b) rubber (c) clay pottery (d) cotton cloth
  31. 31.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) iron (d) clay pottery
  32. 32.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.Which of these needs a flexible material? (a) a car seat belt (b) the core of a wire (c) a cooking pot handle (d) a spectacle lens
  35. 35.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) aluminium (d) steel
  36. 36.🔍 Which is the odd one out? (a) graphite (b) steel (c) iron (d) cotton cloth
  37. 37.Which of these needs a waterproof material? (a) a car seat belt (b) a boat hull (c) a car windscreen (d) a yoga mat
  38. 38.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  40. 40.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron

Answer key

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

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