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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 60 · 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 of these needs a waterproof material? (a) a magnifier lens (b) a hair band (c) a car seat belt (d) a raincoat
  2. 2.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) graphite (d) brass
  3. 3.Which of these needs a transparent material? (a) a window pane (b) a roof sheet (c) a hair band (d) a water tank
  4. 4.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  5. 5.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  6. 6.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which property matters most for a window pane? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  8. 8.🔍 Which is the odd one out? (a) plastic (b) rubber (c) dry wood (d) copper
  9. 9.Which of these needs an electrical conductor? (a) a car windscreen (b) a hair band (c) a skipping rope (d) the core of a wire
  10. 10.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  11. 11.True or false: a yoga mat needs a flexible material. (a) True (b) False
  12. 12.🔍 Which is the odd one out? (a) aluminium (b) copper (c) brass (d) glass
  13. 13.🔍 Which is the odd one out? (a) plastic (b) steel (c) iron (d) brass
  14. 14.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  15. 15.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) aluminium (d) glass
  16. 16.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) iron (d) dry wood
  17. 17.Which of these needs a waterproof material? (a) an oven glove (b) a boat hull (c) a window pane (d) a yoga mat
  18. 18.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  19. 19.Which of these needs an electrical conductor? (a) a magnifier lens (b) a tea flask lining (c) a cooking pot handle (d) a switch contact
  20. 20.Which of these needs a heat insulator? (a) a raincoat (b) an umbrella cover (c) a cooking pot handle (d) a switch contact
  21. 21.Which of these needs a heat insulator? (a) a water tank (b) a plug pin (c) an oven glove (d) a hair band
  22. 22.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  23. 23.True or false: a yoga mat needs a transparent material. (a) True (b) False
  24. 24.True or false: a car windscreen needs a transparent material. (a) True (b) False
  25. 25.🧱 Which property matters most for a magnifier lens? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  26. 26.🧱 Which property matters most for a switch contact? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  27. 27.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  29. 29.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) brass (d) glass
  30. 30.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  31. 31.🔍 Which is the odd one out? (a) iron (b) graphite (c) cotton cloth (d) aluminium
  32. 32.Which of these needs a heat insulator? (a) a spectacle lens (b) a roof sheet (c) a tea flask lining (d) a boat hull
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a plug pin? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  36. 36.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.True or false: a boat hull needs a transparent material. (a) False (b) True
  38. 38.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  39. 39.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  40. 40.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof

Answer key

  1. a raincoat
  2. rubber
  3. a window pane
  4. True
  5. True
  6. an insulator
  7. transparent
  8. copper
  9. the core of a wire
  10. copper
  11. True
  12. glass
  13. plastic
  14. electrical conductor
  15. aluminium
  16. iron
  17. a boat hull
  18. glass
  19. a switch contact
  20. a cooking pot handle
  21. an oven glove
  22. heat insulator
  23. False
  24. True
  25. transparent
  26. electrical conductor
  27. a conductor
  28. waterproof
  29. brass
  30. False
  31. cotton cloth
  32. a tea flask lining
  33. an insulator
  34. an insulator
  35. electrical conductor
  36. a conductor
  37. False
  38. steel
  39. heat insulator
  40. waterproof

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