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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 911 · 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 material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  2. 2.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) cotton cloth (d) brass
  4. 4.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a switch contact (c) a roof sheet (d) a water tank
  6. 6.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs an electrical conductor? (a) a yoga mat (b) a window pane (c) a plug pin (d) a water tank
  8. 8.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  9. 9.Which of these needs an electrical conductor? (a) a raincoat (b) a roof sheet (c) the core of a wire (d) an umbrella cover
  10. 10.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.True or false: a hair band needs an electrical conductor. (a) False (b) True
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a transparent material? (a) a spectacle lens (b) a yoga mat (c) an umbrella cover (d) a hair band
  16. 16.Which of these needs a transparent material? (a) a yoga mat (b) a magnifier lens (c) a cooking pot handle (d) a hair band
  17. 17.Which of these needs a heat insulator? (a) a car seat belt (b) a tea flask lining (c) the core of a wire (d) a hair band
  18. 18.🔍 Which is the odd one out? (a) copper (b) iron (c) rubber (d) brass
  19. 19.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: an oven glove needs a waterproof material. (a) True (b) False
  21. 21.🧱 Which property matters most for a car seat belt? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  22. 22.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  23. 23.Which of these needs a heat insulator? (a) a skipping rope (b) a cooking pot handle (c) a spectacle lens (d) a hair band
  24. 24.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) steel (d) copper
  25. 25.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  26. 26.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  27. 27.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  28. 28.True or false: a raincoat needs a waterproof material. (a) False (b) True
  29. 29.True or false: a window pane needs a transparent material. (a) False (b) True
  30. 30.True or false: a water tank needs a heat insulator. (a) False (b) True
  31. 31.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  32. 32.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  33. 33.🔍 Which is the odd one out? (a) glass (b) plastic (c) clay pottery (d) copper
  34. 34.Which of these needs a flexible material? (a) a hair band (b) a magnifier lens (c) a water tank (d) a boat hull
  35. 35.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.Which of these needs a waterproof material? (a) a car windscreen (b) a car seat belt (c) a skipping rope (d) an umbrella cover
  37. 37.🧱 Which property matters most for a raincoat? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  38. 38.🔍 Which is the odd one out? (a) rubber (b) graphite (c) plastic (d) cotton cloth
  39. 39.Which of these needs a transparent material? (a) a boat hull (b) a yoga mat (c) the core of a wire (d) a car windscreen
  40. 40.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard

Answer key

  1. glass
  2. steel
  3. cotton cloth
  4. a conductor
  5. a switch contact
  6. a conductor
  7. a plug pin
  8. heat insulator
  9. the core of a wire
  10. an insulator
  11. False
  12. a conductor
  13. True
  14. a conductor
  15. a spectacle lens
  16. a magnifier lens
  17. a tea flask lining
  18. rubber
  19. an insulator
  20. False
  21. flexible
  22. False
  23. a cooking pot handle
  24. clay pottery
  25. True
  26. False
  27. copper
  28. True
  29. True
  30. False
  31. electrical conductor
  32. transparent
  33. copper
  34. a hair band
  35. an insulator
  36. an umbrella cover
  37. waterproof
  38. graphite
  39. a car windscreen
  40. plastic-coated cloth

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