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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 628 · 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 raincoat needs a waterproof material. (a) False (b) True
  2. 2.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) aluminium (d) iron
  3. 3.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  4. 4.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  6. 6.True or false: an oven glove needs a waterproof material. (a) True (b) False
  7. 7.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🔍 Which is the odd one out? (a) copper (b) aluminium (c) brass (d) rubber
  9. 9.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) glass (d) dry wood
  10. 10.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  11. 11.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  15. 15.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  16. 16.True or false: a water tank needs a waterproof material. (a) True (b) False
  17. 17.Which of these needs a heat insulator? (a) an umbrella cover (b) a magnifier lens (c) a roof sheet (d) a tea flask lining
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  20. 20.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) clay pottery (d) rubber
  21. 21.🔍 Which is the odd one out? (a) iron (b) copper (c) glass (d) aluminium
  22. 22.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) iron (b) plastic (c) aluminium (d) copper
  24. 24.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  25. 25.Which of these needs an electrical conductor? (a) a roof sheet (b) a spectacle lens (c) a plug pin (d) a raincoat
  26. 26.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) dry wood (d) copper
  28. 28.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) brass (b) copper (c) aluminium (d) clay pottery
  30. 30.True or false: a window pane needs a transparent material. (a) True (b) False
  31. 31.True or false: an oven glove needs a heat insulator. (a) True (b) False
  32. 32.True or false: a hair band needs a flexible material. (a) True (b) False
  33. 33.Which of these needs an electrical conductor? (a) a boat hull (b) the core of a wire (c) a cooking pot handle (d) a car seat belt
  34. 34.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  35. 35.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  36. 36.Which of these needs a waterproof material? (a) a hair band (b) a raincoat (c) a plug pin (d) the core of a wire
  37. 37.Which of these needs a heat insulator? (a) the core of a wire (b) a roof sheet (c) an oven glove (d) a raincoat
  38. 38.Which of these needs a flexible material? (a) a window pane (b) a cooking pot handle (c) a boat hull (d) a hair band
  39. 39.Which of these needs a waterproof material? (a) a car seat belt (b) a spectacle lens (c) a tea flask lining (d) a roof sheet
  40. 40.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor

Answer key

  1. True
  2. wood or plastic
  3. copper
  4. a conductor
  5. glass
  6. False
  7. a conductor
  8. rubber
  9. aluminium
  10. False
  11. True
  12. a conductor
  13. an insulator
  14. False
  15. waterproof
  16. True
  17. a tea flask lining
  18. a conductor
  19. plastic-coated cloth
  20. copper
  21. glass
  22. an insulator
  23. plastic
  24. heat insulator
  25. a plug pin
  26. an insulator
  27. dry wood
  28. False
  29. clay pottery
  30. True
  31. True
  32. True
  33. the core of a wire
  34. steel
  35. waterproof
  36. a raincoat
  37. an oven glove
  38. a hair band
  39. a roof sheet
  40. flexible

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