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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 867 · 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) False (b) True
  2. 2.🔍 Which is the odd one out? (a) copper (b) iron (c) rubber (d) graphite
  3. 3.🔍 Which is the odd one out? (a) glass (b) copper (c) steel (d) brass
  4. 4.🧱 Which property matters most for a hair band? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  5. 5.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.Which of these needs a flexible material? (a) a roof sheet (b) a spectacle lens (c) a skipping rope (d) a cooking pot handle
  8. 8.🔍 Which is the odd one out? (a) dry wood (b) glass (c) brass (d) plastic
  9. 9.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  10. 10.🔍 Which is the odd one out? (a) plastic (b) brass (c) graphite (d) steel
  11. 11.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  12. 12.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  14. 14.Which of these needs a waterproof material? (a) a raincoat (b) the core of a wire (c) a yoga mat (d) a skipping rope
  15. 15.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  16. 16.Which of these needs a flexible material? (a) a spectacle lens (b) a raincoat (c) a yoga mat (d) a magnifier lens
  17. 17.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  18. 18.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) glass (d) aluminium
  19. 19.🧱 Which property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a flexible material? (a) a car windscreen (b) a boat hull (c) a window pane (d) a hair band
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) brass (b) aluminium (c) cotton cloth (d) iron
  24. 24.Which of these needs a transparent material? (a) a magnifier lens (b) a roof sheet (c) a tea flask lining (d) a skipping rope
  25. 25.Which of these needs a transparent material? (a) a spectacle lens (b) a tea flask lining (c) a switch contact (d) a plug pin
  26. 26.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  27. 27.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🔍 Which is the odd one out? (a) rubber (b) plastic (c) iron (d) glass
  29. 29.True or false: a window pane needs a transparent material. (a) False (b) True
  30. 30.Which of these needs a heat insulator? (a) a cooking pot handle (b) a switch contact (c) a boat hull (d) a hair band
  31. 31.Which of these needs a waterproof material? (a) a roof sheet (b) a hair band (c) a spectacle lens (d) a magnifier lens
  32. 32.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  33. 33.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  34. 34.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  36. 36.Which of these needs a waterproof material? (a) an oven glove (b) an umbrella cover (c) a switch contact (d) a cooking pot handle
  37. 37.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  38. 38.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  39. 39.Which of these needs an electrical conductor? (a) a switch contact (b) an umbrella cover (c) a car windscreen (d) a window pane
  40. 40.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof

Answer key

  1. True
  2. rubber
  3. glass
  4. flexible
  5. a conductor
  6. an insulator
  7. a skipping rope
  8. brass
  9. copper
  10. plastic
  11. False
  12. an insulator
  13. transparent
  14. a raincoat
  15. waterproof
  16. a yoga mat
  17. waterproof
  18. aluminium
  19. flexible
  20. an insulator
  21. a hair band
  22. a conductor
  23. cotton cloth
  24. a magnifier lens
  25. a spectacle lens
  26. False
  27. a conductor
  28. iron
  29. True
  30. a cooking pot handle
  31. a roof sheet
  32. waterproof
  33. wood or plastic
  34. an insulator
  35. heat insulator
  36. an umbrella cover
  37. steel
  38. glass
  39. a switch contact
  40. waterproof

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