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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 84 · 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.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  3. 3.🔍 Which is the odd one out? (a) graphite (b) copper (c) clay pottery (d) iron
  4. 4.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) rubber (d) aluminium
  5. 5.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  6. 6.🔍 Which is the odd one out? (a) rubber (b) graphite (c) glass (d) plastic
  7. 7.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  8. 8.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  10. 10.🔍 Which is the odd one out? (a) steel (b) glass (c) graphite (d) copper
  11. 11.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  13. 13.Which of these needs a waterproof material? (a) a raincoat (b) a spectacle lens (c) a car seat belt (d) an oven glove
  14. 14.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which property matters most for a switch contact? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  17. 17.🧱 Which property matters most for a tea flask lining? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  18. 18.True or false: a hair band needs a flexible material. (a) True (b) False
  19. 19.Which of these needs an electrical conductor? (a) a car windscreen (b) a cooking pot handle (c) the core of a wire (d) a window pane
  20. 20.🔍 Which is the odd one out? (a) iron (b) aluminium (c) brass (d) rubber
  21. 21.True or false: a raincoat needs a waterproof material. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) iron (b) brass (c) cotton cloth (d) copper
  23. 23.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  24. 24.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  25. 25.Which of these needs an electrical conductor? (a) a plug pin (b) a water tank (c) a car windscreen (d) an umbrella cover
  26. 26.Which of these needs a transparent material? (a) a car seat belt (b) the core of a wire (c) a window pane (d) a raincoat
  27. 27.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.Which of these needs a flexible material? (a) a boat hull (b) an oven glove (c) a hair band (d) a plug pin
  29. 29.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  30. 30.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) copper (d) rubber
  31. 31.Which of these needs a flexible material? (a) a car windscreen (b) a switch contact (c) a car seat belt (d) a tea flask lining
  32. 32.🔍 Which is the odd one out? (a) glass (b) plastic (c) brass (d) clay pottery
  33. 33.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  34. 34.Which of these needs a heat insulator? (a) the core of a wire (b) an oven glove (c) a hair band (d) a raincoat
  35. 35.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  36. 36.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  37. 37.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.True or false: a hair band needs a heat insulator. (a) True (b) False
  39. 39.True or false: a roof sheet needs a flexible material. (a) False (b) True
  40. 40.Which of these needs a heat insulator? (a) a raincoat (b) a roof sheet (c) a yoga mat (d) a tea flask lining

Answer key

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

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