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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 761 · 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) copper (b) plastic (c) dry wood (d) cotton cloth
  2. 2.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  3. 3.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  4. 4.🧱 Which property matters most for a magnifier lens? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  5. 5.True or false: a switch contact needs a flexible material. (a) True (b) False
  6. 6.True or false: a water tank needs a transparent material. (a) False (b) True
  7. 7.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) glass (b) iron (c) rubber (d) dry wood
  9. 9.Which of these needs a flexible material? (a) a car windscreen (b) a roof sheet (c) a hair band (d) a boat hull
  10. 10.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) dry wood (d) cotton cloth
  11. 11.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  12. 12.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  13. 13.🔍 Which is the odd one out? (a) copper (b) aluminium (c) brass (d) glass
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  18. 18.Which of these needs an electrical conductor? (a) a skipping rope (b) a roof sheet (c) a switch contact (d) a hair band
  19. 19.🔍 Which is the odd one out? (a) aluminium (b) copper (c) cotton cloth (d) graphite
  20. 20.Which of these needs an electrical conductor? (a) a plug pin (b) an umbrella cover (c) a cooking pot handle (d) a spectacle lens
  21. 21.🧱 Which property matters most for a boat hull? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  22. 22.Which of these needs a waterproof material? (a) a window pane (b) a magnifier lens (c) a raincoat (d) an oven glove
  23. 23.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  24. 24.Which of these needs an electrical conductor? (a) a boat hull (b) an umbrella cover (c) the core of a wire (d) a tea flask lining
  25. 25.Which of these needs a transparent material? (a) a car seat belt (b) a raincoat (c) a car windscreen (d) a roof sheet
  26. 26.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) copper (d) brass
  27. 27.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) brass (d) iron
  31. 31.Which of these needs a transparent material? (a) a plug pin (b) a car seat belt (c) a window pane (d) a switch contact
  32. 32.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) brass (d) glass
  33. 33.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  34. 34.Which of these needs a heat insulator? (a) a car windscreen (b) a cooking pot handle (c) a roof sheet (d) a water tank
  35. 35.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  36. 36.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  38. 38.Which of these needs a waterproof material? (a) an oven glove (b) an umbrella cover (c) a plug pin (d) a skipping rope
  39. 39.🔍 Which is the odd one out? (a) brass (b) plastic (c) aluminium (d) graphite
  40. 40.True or false: an umbrella cover needs a heat insulator. (a) False (b) True

Answer key

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

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