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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 808 · 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 material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  2. 2.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) glass (d) dry wood
  3. 3.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🔍 Which is the odd one out? (a) rubber (b) graphite (c) glass (d) plastic
  5. 5.True or false: a window pane needs a transparent material. (a) True (b) False
  6. 6.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a car seat belt needs a flexible material. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) brass (b) steel (c) aluminium (d) plastic
  9. 9.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  10. 10.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.Which of these needs a transparent material? (a) a skipping rope (b) a magnifier lens (c) a tea flask lining (d) an umbrella cover
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  14. 14.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  15. 15.🧱 Which material is best for a window pane? (a) brick (b) glass (c) wood (d) steel
  16. 16.🔍 Which is the odd one out? (a) iron (b) copper (c) steel (d) glass
  17. 17.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  18. 18.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  19. 19.Which of these needs a heat insulator? (a) a boat hull (b) a roof sheet (c) a tea flask lining (d) an umbrella cover
  20. 20.Which of these needs a waterproof material? (a) a magnifier lens (b) a plug pin (c) a boat hull (d) the core of a wire
  21. 21.🔍 Which is the odd one out? (a) steel (b) brass (c) copper (d) rubber
  22. 22.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  23. 23.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  24. 24.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  25. 25.True or false: a window pane needs a heat insulator. (a) True (b) False
  26. 26.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  27. 27.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  28. 28.Which of these needs an electrical conductor? (a) a plug pin (b) a raincoat (c) an oven glove (d) a spectacle lens
  29. 29.True or false: a yoga mat needs a transparent material. (a) True (b) False
  30. 30.True or false: a raincoat needs a waterproof material. (a) False (b) True
  31. 31.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) cotton cloth (d) dry wood
  32. 32.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) iron (d) dry wood
  33. 33.Which of these needs a waterproof material? (a) the core of a wire (b) a raincoat (c) a spectacle lens (d) a hair band
  34. 34.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  35. 35.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  37. 37.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  38. 38.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  39. 39.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  40. 40.Which of these needs a heat insulator? (a) a cooking pot handle (b) an umbrella cover (c) the core of a wire (d) a yoga mat

Answer key

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

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