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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 898 · 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 water tank? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  2. 2.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  3. 3.🔍 Which is the odd one out? (a) rubber (b) brass (c) dry wood (d) glass
  4. 4.Which of these needs a heat insulator? (a) a yoga mat (b) a spectacle lens (c) an oven glove (d) a boat hull
  5. 5.🔍 Which is the odd one out? (a) steel (b) rubber (c) graphite (d) iron
  6. 6.True or false: a raincoat needs a heat insulator. (a) True (b) False
  7. 7.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.True or false: a water tank needs an electrical conductor. (a) False (b) True
  9. 9.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  10. 10.True or false: a switch contact needs a flexible material. (a) False (b) True
  11. 11.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  13. 13.Which of these needs a flexible material? (a) a boat hull (b) an oven glove (c) a raincoat (d) a skipping rope
  14. 14.Which of these needs a transparent material? (a) a yoga mat (b) a hair band (c) a window pane (d) a car seat belt
  15. 15.🧱 Which property matters most for a plug pin? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  16. 16.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  20. 20.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🔍 Which is the odd one out? (a) iron (b) plastic (c) cotton cloth (d) clay pottery
  22. 22.Which of these needs a waterproof material? (a) a car windscreen (b) a water tank (c) a magnifier lens (d) a window pane
  23. 23.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.Which of these needs a waterproof material? (a) a raincoat (b) a magnifier lens (c) a car windscreen (d) the core of a wire
  25. 25.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  27. 27.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  28. 28.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  29. 29.Which of these needs a heat insulator? (a) a car windscreen (b) a spectacle lens (c) a tea flask lining (d) a car seat belt
  30. 30.🧱 Which property matters most for a window pane? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  31. 31.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  32. 32.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) steel (b) iron (c) aluminium (d) plastic
  34. 34.True or false: a car windscreen needs a transparent material. (a) True (b) False
  35. 35.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  36. 36.Which of these needs an electrical conductor? (a) a window pane (b) the core of a wire (c) a car seat belt (d) a skipping rope
  37. 37.🧱 Which property matters most for the core of a wire? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  38. 38.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) brass (d) glass

Answer key

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

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