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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 77 · 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) graphite (b) iron (c) copper (d) plastic
  2. 2.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  3. 3.🧱 Which property matters most for an oven glove? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  4. 4.True or false: the core of a wire needs a flexible material. (a) True (b) False
  5. 5.True or false: a water tank needs a heat insulator. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) copper (d) glass
  7. 7.Which of these needs a transparent material? (a) a plug pin (b) a raincoat (c) a spectacle lens (d) a hair band
  8. 8.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  9. 9.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  10. 10.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  12. 12.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) plastic (d) steel
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a heat insulator? (a) a tea flask lining (b) a plug pin (c) a magnifier lens (d) a roof sheet
  15. 15.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  17. 17.True or false: a hair band needs a heat insulator. (a) True (b) False
  18. 18.Which of these needs a waterproof material? (a) a car windscreen (b) the core of a wire (c) an umbrella cover (d) a hair band
  19. 19.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  20. 20.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  21. 21.🔍 Which is the odd one out? (a) copper (b) aluminium (c) graphite (d) clay pottery
  22. 22.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  23. 23.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  24. 24.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  25. 25.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) plastic (d) aluminium
  27. 27.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  28. 28.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  29. 29.🔍 Which is the odd one out? (a) rubber (b) steel (c) copper (d) brass
  30. 30.Which of these needs a waterproof material? (a) a magnifier lens (b) a hair band (c) a boat hull (d) a car seat belt
  31. 31.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  32. 32.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  33. 33.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) dry wood (b) iron (c) aluminium (d) brass
  37. 37.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  38. 38.Which of these needs a heat insulator? (a) a car seat belt (b) a window pane (c) a cooking pot handle (d) an umbrella cover
  39. 39.True or false: a yoga mat needs a flexible material. (a) False (b) True
  40. 40.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

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

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