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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 831 · 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 core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  2. 2.🔍 Which is the odd one out? (a) brass (b) aluminium (c) graphite (d) glass
  3. 3.True or false: the core of a wire needs a transparent material. (a) False (b) True
  4. 4.True or false: a window pane needs a transparent material. (a) True (b) False
  5. 5.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  6. 6.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  7. 7.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  8. 8.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  9. 9.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) plastic (d) graphite
  10. 10.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  11. 11.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  12. 12.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  13. 13.Which of these needs a flexible material? (a) an umbrella cover (b) a water tank (c) a cooking pot handle (d) a hair band
  14. 14.🧱 Which property matters most for an oven glove? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  15. 15.🧱 Which property matters most for a raincoat? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  16. 16.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  17. 17.Which of these needs a transparent material? (a) a tea flask lining (b) the core of a wire (c) a magnifier lens (d) an oven glove
  18. 18.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) aluminium (d) brass
  19. 19.True or false: a cooking pot handle needs a transparent material. (a) False (b) True
  20. 20.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  21. 21.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  23. 23.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) copper (d) plastic
  24. 24.Which of these needs a flexible material? (a) a cooking pot handle (b) a switch contact (c) a window pane (d) a yoga mat
  25. 25.Which of these needs a waterproof material? (a) a roof sheet (b) a skipping rope (c) a window pane (d) a tea flask lining
  26. 26.Which of these needs a waterproof material? (a) a yoga mat (b) a hair band (c) a water tank (d) a car windscreen
  27. 27.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  28. 28.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  29. 29.🔍 Which is the odd one out? (a) steel (b) graphite (c) plastic (d) aluminium
  30. 30.Which of these needs a transparent material? (a) a water tank (b) a raincoat (c) a car windscreen (d) a car seat belt
  31. 31.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  32. 32.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.Which of these needs a transparent material? (a) an oven glove (b) a boat hull (c) a roof sheet (d) a window pane
  34. 34.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a water tank needs a flexible material. (a) False (b) True
  37. 37.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  38. 38.Which of these needs a flexible material? (a) a roof sheet (b) a switch contact (c) a skipping rope (d) an umbrella cover
  39. 39.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.True or false: a plug pin needs an electrical conductor. (a) False (b) True

Answer key

  1. copper
  2. glass
  3. False
  4. True
  5. electrical conductor
  6. True
  7. glass
  8. heat insulator
  9. graphite
  10. plastic-coated cloth
  11. waterproof
  12. steel
  13. a hair band
  14. heat insulator
  15. waterproof
  16. electrical conductor
  17. a magnifier lens
  18. clay pottery
  19. False
  20. transparent
  21. an insulator
  22. transparent
  23. copper
  24. a yoga mat
  25. a roof sheet
  26. a water tank
  27. True
  28. waterproof
  29. plastic
  30. a car windscreen
  31. wood or plastic
  32. an insulator
  33. a window pane
  34. flexible
  35. a conductor
  36. False
  37. False
  38. a skipping rope
  39. a conductor
  40. True

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