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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 247 · 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 property matters most for a water tank? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  2. 2.True or false: a raincoat needs a transparent material. (a) True (b) False
  3. 3.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  4. 4.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  5. 5.🔍 Which is the odd one out? (a) copper (b) aluminium (c) rubber (d) brass
  6. 6.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  7. 7.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these needs a transparent material? (a) a plug pin (b) the core of a wire (c) a magnifier lens (d) a boat hull
  10. 10.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🔍 Which is the odd one out? (a) copper (b) rubber (c) clay pottery (d) cotton cloth
  13. 13.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  14. 14.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  15. 15.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  16. 16.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) brass (d) rubber
  18. 18.🔍 Which is the odd one out? (a) plastic (b) steel (c) glass (d) rubber
  19. 19.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  20. 20.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  21. 21.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  22. 22.🧱 Which property matters most for a car seat belt? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  23. 23.True or false: a raincoat needs a waterproof material. (a) False (b) True
  24. 24.True or false: a water tank needs a waterproof material. (a) False (b) True
  25. 25.Which of these needs a waterproof material? (a) a switch contact (b) a car windscreen (c) a boat hull (d) a car seat belt
  26. 26.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  28. 28.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  29. 29.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  30. 30.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  33. 33.Which of these needs an electrical conductor? (a) a car seat belt (b) a cooking pot handle (c) a yoga mat (d) the core of a wire
  34. 34.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which property matters most for a switch contact? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  37. 37.Which of these needs a transparent material? (a) the core of a wire (b) a water tank (c) a roof sheet (d) a window pane
  38. 38.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) plastic (d) clay pottery
  39. 39.Which of these needs a waterproof material? (a) the core of a wire (b) a roof sheet (c) a window pane (d) an oven glove
  40. 40.🔍 Which is the odd one out? (a) aluminium (b) iron (c) cotton cloth (d) copper

Answer key

  1. waterproof
  2. False
  3. True
  4. wood or plastic
  5. rubber
  6. electrical conductor
  7. a conductor
  8. a conductor
  9. a magnifier lens
  10. a conductor
  11. an insulator
  12. copper
  13. transparent
  14. heat insulator
  15. waterproof
  16. an insulator
  17. brass
  18. steel
  19. plastic-coated cloth
  20. glass
  21. electrical conductor
  22. flexible
  23. True
  24. True
  25. a boat hull
  26. an insulator
  27. waterproof
  28. False
  29. flexible
  30. steel
  31. a conductor
  32. False
  33. the core of a wire
  34. transparent
  35. a conductor
  36. electrical conductor
  37. a window pane
  38. aluminium
  39. a roof sheet
  40. cotton cloth

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