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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 263 · 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.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  3. 3.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  6. 6.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a switch contact (c) a roof sheet (d) a water tank
  8. 8.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  9. 9.Which of these needs a transparent material? (a) a plug pin (b) a boat hull (c) a magnifier lens (d) a roof sheet
  10. 10.🔍 Which is the odd one out? (a) aluminium (b) copper (c) clay pottery (d) brass
  11. 11.Which of these needs a transparent material? (a) a switch contact (b) a roof sheet (c) a spectacle lens (d) a plug pin
  12. 12.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) dry wood (b) copper (c) iron (d) aluminium
  14. 14.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  15. 15.Which of these needs a transparent material? (a) a car seat belt (b) a plug pin (c) a car windscreen (d) a boat hull
  16. 16.🔍 Which is the odd one out? (a) dry wood (b) copper (c) plastic (d) rubber
  17. 17.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) graphite (d) cotton cloth
  18. 18.🔍 Which is the odd one out? (a) plastic (b) rubber (c) cotton cloth (d) iron
  19. 19.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  20. 20.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  21. 21.Which of these needs a waterproof material? (a) a car seat belt (b) a cooking pot handle (c) a water tank (d) a tea flask lining
  22. 22.Which of these needs an electrical conductor? (a) an umbrella cover (b) the core of a wire (c) a hair band (d) an oven glove
  23. 23.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  24. 24.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  25. 25.True or false: a water tank needs an electrical conductor. (a) False (b) True
  26. 26.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  27. 27.True or false: a raincoat needs a waterproof material. (a) False (b) True
  28. 28.Which of these needs an electrical conductor? (a) an umbrella cover (b) a plug pin (c) a yoga mat (d) a tea flask lining
  29. 29.🧱 Which property matters most for a car seat belt? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  30. 30.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  31. 31.True or false: an oven glove needs a waterproof material. (a) False (b) True
  32. 32.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) brass (d) steel
  34. 34.Which of these needs a heat insulator? (a) a hair band (b) an umbrella cover (c) a roof sheet (d) an oven glove
  35. 35.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  36. 36.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a heat insulator? (a) a plug pin (b) a cooking pot handle (c) a switch contact (d) a boat hull
  38. 38.True or false: the core of a wire needs a transparent material. (a) True (b) False
  39. 39.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  40. 40.Which of these needs a heat insulator? (a) a magnifier lens (b) a window pane (c) a tea flask lining (d) an umbrella cover

Answer key

  1. a conductor
  2. True
  3. False
  4. a conductor
  5. waterproof
  6. an insulator
  7. a switch contact
  8. False
  9. a magnifier lens
  10. clay pottery
  11. a spectacle lens
  12. True
  13. dry wood
  14. heat insulator
  15. a car windscreen
  16. copper
  17. graphite
  18. iron
  19. True
  20. steel
  21. a water tank
  22. the core of a wire
  23. flexible
  24. glass
  25. False
  26. False
  27. True
  28. a plug pin
  29. flexible
  30. transparent
  31. False
  32. a conductor
  33. rubber
  34. an oven glove
  35. flexible
  36. an insulator
  37. a cooking pot handle
  38. False
  39. copper
  40. a tea flask lining

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