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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 45 · 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) graphite (b) aluminium (c) brass (d) cotton cloth
  2. 2.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  4. 4.True or false: a skipping rope needs a transparent material. (a) True (b) False
  5. 5.Which of these needs a heat insulator? (a) a switch contact (b) a tea flask lining (c) a raincoat (d) an umbrella cover
  6. 6.🧱 Which property matters most for a magnifier lens? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  7. 7.🧱 Which property matters most for a car seat belt? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  8. 8.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  9. 9.🔍 Which is the odd one out? (a) rubber (b) copper (c) steel (d) aluminium
  10. 10.Which of these needs a transparent material? (a) a boat hull (b) a car windscreen (c) a water tank (d) a raincoat
  11. 11.Which of these needs a transparent material? (a) an umbrella cover (b) a roof sheet (c) a window pane (d) a tea flask lining
  12. 12.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  13. 13.🧱 Which property matters most for the core of a wire? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  14. 14.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) steel (d) rubber
  15. 15.Which of these needs a transparent material? (a) a switch contact (b) a magnifier lens (c) a boat hull (d) a car seat belt
  16. 16.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  17. 17.🧱 Which property matters most for a spectacle lens? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  18. 18.True or false: a roof sheet needs a flexible material. (a) False (b) True
  19. 19.Which of these needs a flexible material? (a) a car windscreen (b) a water tank (c) a skipping rope (d) the core of a wire
  20. 20.True or false: a boat hull needs a waterproof material. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) plastic (b) brass (c) glass (d) clay pottery
  22. 22.🔍 Which is the odd one out? (a) iron (b) rubber (c) clay pottery (d) dry wood
  23. 23.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  24. 24.Which of these needs a waterproof material? (a) a cooking pot handle (b) an oven glove (c) a window pane (d) a water tank
  25. 25.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) aluminium (d) steel
  26. 26.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) plastic (d) steel
  27. 27.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  28. 28.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: a water tank needs a waterproof material. (a) False (b) True
  31. 31.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  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) an umbrella cover (b) a spectacle lens (c) a plug pin (d) an oven glove
  34. 34.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  35. 35.Which of these needs a waterproof material? (a) the core of a wire (b) a plug pin (c) a magnifier lens (d) a raincoat
  36. 36.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🔍 Which is the odd one out? (a) iron (b) dry wood (c) aluminium (d) graphite
  38. 38.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) electrical conductor (d) waterproof

Answer key

  1. cotton cloth
  2. a conductor
  3. plastic-coated cloth
  4. False
  5. a tea flask lining
  6. transparent
  7. flexible
  8. glass
  9. rubber
  10. a car windscreen
  11. a window pane
  12. copper
  13. electrical conductor
  14. steel
  15. a magnifier lens
  16. True
  17. transparent
  18. False
  19. a skipping rope
  20. True
  21. brass
  22. iron
  23. wood or plastic
  24. a water tank
  25. clay pottery
  26. plastic
  27. True
  28. heat insulator
  29. a conductor
  30. True
  31. a conductor
  32. True
  33. a plug pin
  34. transparent
  35. a raincoat
  36. an insulator
  37. dry wood
  38. an insulator
  39. an insulator
  40. electrical conductor

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