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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 862 · 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.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.Which of these needs a flexible material? (a) a magnifier lens (b) the core of a wire (c) a car seat belt (d) a boat hull
  4. 4.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  5. 5.Which of these needs a flexible material? (a) an umbrella cover (b) a roof sheet (c) a yoga mat (d) a switch contact
  6. 6.True or false: a spectacle lens needs an electrical conductor. (a) False (b) True
  7. 7.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  8. 8.Which of these needs a heat insulator? (a) a car seat belt (b) a hair band (c) a tea flask lining (d) a raincoat
  9. 9.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.True or false: a window pane needs an electrical conductor. (a) True (b) False
  11. 11.True or false: a raincoat needs a flexible material. (a) True (b) False
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🔍 Which is the odd one out? (a) copper (b) plastic (c) rubber (d) clay pottery
  14. 14.Which of these needs a flexible material? (a) the core of a wire (b) a water tank (c) a roof sheet (d) a skipping rope
  15. 15.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  16. 16.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  17. 17.Which of these needs a waterproof material? (a) a yoga mat (b) a plug pin (c) a skipping rope (d) a roof sheet
  18. 18.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) graphite (d) iron
  19. 19.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  23. 23.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  24. 24.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  25. 25.🧱 Which property matters most for a magnifier lens? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  26. 26.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
  27. 27.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  28. 28.🔍 Which is the odd one out? (a) copper (b) brass (c) rubber (d) steel
  29. 29.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  31. 31.True or false: a boat hull needs a waterproof material. (a) False (b) True
  32. 32.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  33. 33.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  35. 35.Which of these needs a waterproof material? (a) a tea flask lining (b) a yoga mat (c) a skipping rope (d) a raincoat
  36. 36.True or false: a window pane needs a transparent material. (a) False (b) True
  37. 37.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  38. 38.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  39. 39.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  40. 40.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) transparent (d) electrical conductor

Answer key

  1. wood or plastic
  2. an insulator
  3. a car seat belt
  4. waterproof
  5. a yoga mat
  6. False
  7. True
  8. a tea flask lining
  9. an insulator
  10. False
  11. False
  12. an insulator
  13. copper
  14. a skipping rope
  15. False
  16. False
  17. a roof sheet
  18. plastic
  19. a conductor
  20. a conductor
  21. a conductor
  22. flexible
  23. heat insulator
  24. electrical conductor
  25. transparent
  26. glass
  27. flexible
  28. rubber
  29. an insulator
  30. False
  31. True
  32. False
  33. a conductor
  34. True
  35. a raincoat
  36. True
  37. copper
  38. flexible
  39. plastic-coated cloth
  40. flexible

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