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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 692 · 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 raincoat? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  2. 2.🧱 Which property matters most for a plug pin? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  3. 3.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  4. 4.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.Which of these needs a flexible material? (a) an umbrella cover (b) a water tank (c) a raincoat (d) a car seat belt
  6. 6.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  7. 7.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  8. 8.🔍 Which is the odd one out? (a) iron (b) graphite (c) brass (d) rubber
  9. 9.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🔍 Which is the odd one out? (a) steel (b) iron (c) cotton cloth (d) aluminium
  13. 13.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  14. 14.True or false: a hair band needs a waterproof material. (a) False (b) True
  15. 15.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  16. 16.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  17. 17.Which of these needs a heat insulator? (a) a magnifier lens (b) a tea flask lining (c) an umbrella cover (d) a water tank
  18. 18.True or false: a skipping rope needs a flexible material. (a) False (b) True
  19. 19.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  20. 20.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  21. 21.🔍 Which is the odd one out? (a) glass (b) brass (c) aluminium (d) graphite
  22. 22.Which of these needs a heat insulator? (a) an oven glove (b) a water tank (c) an umbrella cover (d) a plug pin
  23. 23.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  24. 24.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  25. 25.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  26. 26.🧱 Which property matters most for a water tank? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  27. 27.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) glass (d) plastic
  28. 28.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  29. 29.Which of these needs a transparent material? (a) an oven glove (b) a hair band (c) a spectacle lens (d) a raincoat
  30. 30.Which of these needs a flexible material? (a) a plug pin (b) a water tank (c) a car windscreen (d) a hair band
  31. 31.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  32. 32.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  33. 33.Which of these needs a heat insulator? (a) a roof sheet (b) a cooking pot handle (c) a car windscreen (d) an umbrella cover
  34. 34.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a water tank needs a waterproof material. (a) False (b) True
  36. 36.Which of these needs a flexible material? (a) a water tank (b) a raincoat (c) a boat hull (d) a yoga mat
  37. 37.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) brass (b) aluminium (c) graphite (d) plastic
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) waterproof (d) flexible

Answer key

  1. waterproof
  2. electrical conductor
  3. steel
  4. a conductor
  5. a car seat belt
  6. glass
  7. False
  8. rubber
  9. flexible
  10. a conductor
  11. an insulator
  12. cotton cloth
  13. True
  14. False
  15. wood or plastic
  16. False
  17. a tea flask lining
  18. True
  19. plastic-coated cloth
  20. electrical conductor
  21. glass
  22. an oven glove
  23. True
  24. waterproof
  25. True
  26. waterproof
  27. brass
  28. heat insulator
  29. a spectacle lens
  30. a hair band
  31. flexible
  32. True
  33. a cooking pot handle
  34. a conductor
  35. True
  36. a yoga mat
  37. True
  38. plastic
  39. an insulator
  40. transparent

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