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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 728 · 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) brass (b) dry wood (c) iron (d) aluminium
  2. 2.True or false: a hair band needs an electrical conductor. (a) True (b) False
  3. 3.🧱 Which property matters most for a switch contact? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  4. 4.🔍 Which is the odd one out? (a) rubber (b) copper (c) glass (d) clay pottery
  5. 5.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  6. 6.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  7. 7.True or false: a boat hull needs a transparent material. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) aluminium (b) copper (c) brass (d) clay pottery
  9. 9.🔍 Which is the odd one out? (a) copper (b) plastic (c) steel (d) brass
  10. 10.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  13. 13.True or false: a switch contact needs a heat insulator. (a) False (b) True
  14. 14.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  15. 15.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) rubber (d) glass
  17. 17.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) graphite (d) glass
  18. 18.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  19. 19.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  20. 20.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  21. 21.🔍 Which is the odd one out? (a) copper (b) aluminium (c) rubber (d) graphite
  22. 22.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  23. 23.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  24. 24.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  26. 26.True or false: a plug pin needs a transparent material. (a) True (b) False
  27. 27.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  28. 28.🧱 Which property matters most for a tea flask lining? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  29. 29.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  30. 30.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  31. 31.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.Which of these needs a flexible material? (a) a switch contact (b) a car windscreen (c) a boat hull (d) a skipping rope
  33. 33.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  34. 34.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  35. 35.🔍 Which is the odd one out? (a) iron (b) glass (c) steel (d) graphite
  36. 36.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  37. 37.Which of these needs a flexible material? (a) an umbrella cover (b) a boat hull (c) a yoga mat (d) a tea flask lining
  38. 38.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs a flexible material? (a) a switch contact (b) a magnifier lens (c) a spectacle lens (d) a car seat belt
  40. 40.Which of these needs a heat insulator? (a) the core of a wire (b) a skipping rope (c) a tea flask lining (d) a car windscreen

Answer key

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

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