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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 231 · 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) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  2. 2.Which of these needs a transparent material? (a) a window pane (b) a cooking pot handle (c) a hair band (d) a skipping rope
  3. 3.Which of these needs an electrical conductor? (a) a hair band (b) a magnifier lens (c) a window pane (d) the core of a wire
  4. 4.🔍 Which is the odd one out? (a) plastic (b) graphite (c) dry wood (d) rubber
  5. 5.True or false: a window pane needs a transparent material. (a) True (b) False
  6. 6.Which of these needs an electrical conductor? (a) an oven glove (b) a switch contact (c) a car seat belt (d) a water tank
  7. 7.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) glass (d) copper
  8. 8.🧱 Which property matters most for an oven glove? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  9. 9.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  11. 11.🔍 Which is the odd one out? (a) steel (b) plastic (c) brass (d) aluminium
  12. 12.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  13. 13.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a heat insulator? (a) a water tank (b) a spectacle lens (c) a tea flask lining (d) a roof sheet
  15. 15.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  16. 16.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🔍 Which is the odd one out? (a) brass (b) copper (c) graphite (d) cotton cloth
  18. 18.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  19. 19.True or false: a car seat belt needs a flexible material. (a) True (b) False
  20. 20.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) steel (b) copper (c) dry wood (d) iron
  22. 22.True or false: a water tank needs a waterproof material. (a) False (b) True
  23. 23.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.True or false: a boat hull needs a waterproof material. (a) True (b) False
  25. 25.True or false: a switch contact needs a heat insulator. (a) False (b) True
  26. 26.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  27. 27.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.Which of these needs an electrical conductor? (a) a magnifier lens (b) a spectacle lens (c) a car seat belt (d) a plug pin
  29. 29.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  30. 30.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  31. 31.Which of these needs a heat insulator? (a) the core of a wire (b) a car windscreen (c) a cooking pot handle (d) a yoga mat
  32. 32.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  33. 33.🔍 Which is the odd one out? (a) clay pottery (b) steel (c) rubber (d) plastic
  34. 34.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) aluminium (d) graphite
  37. 37.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  38. 38.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  40. 40.True or false: a spectacle lens needs a waterproof material. (a) True (b) False

Answer key

  1. waterproof
  2. a window pane
  3. the core of a wire
  4. graphite
  5. True
  6. a switch contact
  7. copper
  8. heat insulator
  9. a conductor
  10. heat insulator
  11. plastic
  12. plastic-coated cloth
  13. a conductor
  14. a tea flask lining
  15. True
  16. an insulator
  17. cotton cloth
  18. electrical conductor
  19. True
  20. True
  21. dry wood
  22. True
  23. an insulator
  24. True
  25. False
  26. copper
  27. an insulator
  28. a plug pin
  29. True
  30. transparent
  31. a cooking pot handle
  32. steel
  33. steel
  34. glass
  35. a conductor
  36. clay pottery
  37. waterproof
  38. a conductor
  39. True
  40. False

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