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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 640 · 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 is the odd one out? (a) clay pottery (b) steel (c) rubber (d) plastic
  2. 2.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🔍 Which is the odd one out? (a) copper (b) plastic (c) dry wood (d) cotton cloth
  4. 4.Which of these needs a heat insulator? (a) an umbrella cover (b) a yoga mat (c) an oven glove (d) the core of a wire
  5. 5.Which of these needs a flexible material? (a) a magnifier lens (b) a hair band (c) a window pane (d) a tea flask lining
  6. 6.Which of these needs an electrical conductor? (a) a car windscreen (b) a window pane (c) a plug pin (d) a car seat belt
  7. 7.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) cardboard (d) paper
  8. 8.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.Which of these needs a transparent material? (a) a raincoat (b) a tea flask lining (c) a car seat belt (d) a window pane
  10. 10.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  11. 11.True or false: a window pane needs a transparent material. (a) True (b) False
  12. 12.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  13. 13.🔍 Which is the odd one out? (a) brass (b) iron (c) rubber (d) graphite
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🔍 Which is the odd one out? (a) brass (b) dry wood (c) graphite (d) iron
  16. 16.🧱 Which property matters most for a hair band? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  17. 17.Which of these needs a heat insulator? (a) a skipping rope (b) a boat hull (c) a window pane (d) a tea flask lining
  18. 18.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  19. 19.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  20. 20.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  21. 21.🧱 Which property matters most for a car windscreen? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  22. 22.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  23. 23.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  24. 24.True or false: a hair band needs a heat insulator. (a) False (b) True
  25. 25.Which of these needs a waterproof material? (a) a switch contact (b) a water tank (c) an oven glove (d) a spectacle lens
  26. 26.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  27. 27.True or false: a raincoat needs a waterproof material. (a) False (b) True
  28. 28.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  29. 29.True or false: a water tank needs an electrical conductor. (a) True (b) False
  30. 30.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) dry wood (b) glass (c) graphite (d) clay pottery
  32. 32.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  33. 33.True or false: a water tank needs a waterproof material. (a) False (b) True
  34. 34.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  36. 36.🔍 Which is the odd one out? (a) brass (b) aluminium (c) copper (d) plastic
  37. 37.True or false: a hair band needs a flexible material. (a) True (b) False
  38. 38.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🔍 Which is the odd one out? (a) glass (b) aluminium (c) cotton cloth (d) rubber
  40. 40.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. steel
  2. a conductor
  3. copper
  4. an oven glove
  5. a hair band
  6. a plug pin
  7. plastic-coated cloth
  8. a conductor
  9. a window pane
  10. heat insulator
  11. True
  12. wood or plastic
  13. rubber
  14. a conductor
  15. dry wood
  16. flexible
  17. a tea flask lining
  18. transparent
  19. waterproof
  20. glass
  21. transparent
  22. True
  23. electrical conductor
  24. False
  25. a water tank
  26. waterproof
  27. True
  28. False
  29. False
  30. False
  31. graphite
  32. transparent
  33. True
  34. an insulator
  35. heat insulator
  36. plastic
  37. True
  38. an insulator
  39. aluminium
  40. a conductor

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