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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 996 · 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) iron (b) cotton cloth (c) rubber (d) dry wood
  2. 2.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) dry wood (d) brass
  3. 3.True or false: a magnifier lens needs an electrical conductor. (a) False (b) True
  4. 4.Which of these needs a transparent material? (a) a magnifier lens (b) a raincoat (c) a tea flask lining (d) an oven glove
  5. 5.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  6. 6.Which of these needs an electrical conductor? (a) an umbrella cover (b) the core of a wire (c) a magnifier lens (d) a hair band
  7. 7.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  9. 9.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) iron (d) graphite
  10. 10.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.Which of these needs a waterproof material? (a) a water tank (b) a hair band (c) a skipping rope (d) a spectacle lens
  12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  14. 14.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  15. 15.True or false: an oven glove needs a heat insulator. (a) False (b) True
  16. 16.True or false: a boat hull needs a waterproof material. (a) False (b) True
  17. 17.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  19. 19.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  20. 20.Which of these needs a heat insulator? (a) a yoga mat (b) a tea flask lining (c) a hair band (d) a raincoat
  21. 21.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  22. 22.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  23. 23.🔍 Which is the odd one out? (a) aluminium (b) iron (c) clay pottery (d) steel
  24. 24.True or false: a raincoat needs a flexible material. (a) False (b) True
  25. 25.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.Which of these needs a waterproof material? (a) a boat hull (b) a skipping rope (c) an oven glove (d) the core of a wire
  27. 27.True or false: a switch contact needs a heat insulator. (a) True (b) False
  28. 28.Which of these needs an electrical conductor? (a) a spectacle lens (b) a cooking pot handle (c) a magnifier lens (d) a switch contact
  29. 29.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  30. 30.Which of these needs a flexible material? (a) a spectacle lens (b) a boat hull (c) a plug pin (d) a yoga mat
  31. 31.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) graphite (d) plastic
  32. 32.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  33. 33.🧱 Which property matters most for a magnifier lens? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  34. 34.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  35. 35.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  36. 36.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  37. 37.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  38. 38.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs a transparent material? (a) a roof sheet (b) a switch contact (c) a raincoat (d) a window pane
  40. 40.Which of these needs a transparent material? (a) a plug pin (b) a roof sheet (c) a skipping rope (d) a car windscreen

Answer key

  1. iron
  2. brass
  3. False
  4. a magnifier lens
  5. waterproof
  6. the core of a wire
  7. a conductor
  8. glass
  9. cotton cloth
  10. an insulator
  11. a water tank
  12. an insulator
  13. transparent
  14. wood or plastic
  15. True
  16. True
  17. an insulator
  18. flexible
  19. True
  20. a tea flask lining
  21. copper
  22. electrical conductor
  23. clay pottery
  24. False
  25. a conductor
  26. a boat hull
  27. False
  28. a switch contact
  29. False
  30. a yoga mat
  31. graphite
  32. True
  33. transparent
  34. plastic-coated cloth
  35. heat insulator
  36. False
  37. electrical conductor
  38. an insulator
  39. a window pane
  40. a car windscreen

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