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Engineering Worksheet: Materials

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

Answer key

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

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