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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 294 · 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.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  2. 2.🔍 Which is the odd one out? (a) plastic (b) graphite (c) aluminium (d) copper
  3. 3.Which of these needs a waterproof material? (a) a raincoat (b) a window pane (c) a skipping rope (d) a spectacle lens
  4. 4.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  5. 5.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  6. 6.Which of these needs a heat insulator? (a) a car windscreen (b) a magnifier lens (c) a tea flask lining (d) a water tank
  7. 7.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  9. 9.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  10. 10.Which of these needs a flexible material? (a) a hair band (b) a switch contact (c) a plug pin (d) a raincoat
  11. 11.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  14. 14.🧱 Which property matters most for a hair band? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  15. 15.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) brass (c) iron (d) cotton cloth
  18. 18.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  19. 19.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  21. 21.True or false: a hair band needs an electrical conductor. (a) False (b) True
  22. 22.True or false: a skipping rope needs a transparent material. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) plastic (d) rubber
  24. 24.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  25. 25.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) plastic (d) copper
  26. 26.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  27. 27.Which of these needs a waterproof material? (a) the core of a wire (b) a hair band (c) a switch contact (d) a roof sheet
  28. 28.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: a raincoat needs a waterproof material. (a) False (b) True
  31. 31.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) glass (d) rubber
  32. 32.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  33. 33.Which of these needs a transparent material? (a) a cooking pot handle (b) a boat hull (c) a raincoat (d) a magnifier lens
  34. 34.🔍 Which is the odd one out? (a) plastic (b) brass (c) clay pottery (d) cotton cloth
  35. 35.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  36. 36.Which of these needs a waterproof material? (a) a window pane (b) a water tank (c) a skipping rope (d) a car windscreen
  37. 37.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.Which of these needs a waterproof material? (a) an oven glove (b) a boat hull (c) a yoga mat (d) a plug pin
  39. 39.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) steel (d) cotton cloth
  40. 40.True or false: a plug pin needs a waterproof material. (a) False (b) True

Answer key

  1. True
  2. plastic
  3. a raincoat
  4. glass
  5. copper
  6. a tea flask lining
  7. a conductor
  8. wood or plastic
  9. waterproof
  10. a hair band
  11. False
  12. a conductor
  13. steel
  14. flexible
  15. an insulator
  16. electrical conductor
  17. cotton cloth
  18. True
  19. an insulator
  20. True
  21. False
  22. False
  23. graphite
  24. transparent
  25. copper
  26. waterproof
  27. a roof sheet
  28. a conductor
  29. an insulator
  30. True
  31. iron
  32. flexible
  33. a magnifier lens
  34. brass
  35. plastic-coated cloth
  36. a water tank
  37. an insulator
  38. a boat hull
  39. steel
  40. False

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