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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 282 · 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.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  3. 3.Which of these needs a waterproof material? (a) the core of a wire (b) an oven glove (c) a raincoat (d) a skipping rope
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.Which of these needs an electrical conductor? (a) a hair band (b) a spectacle lens (c) a car windscreen (d) a plug pin
  6. 6.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  7. 7.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  8. 8.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  9. 9.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  10. 10.Which of these needs a flexible material? (a) a car windscreen (b) a roof sheet (c) a plug pin (d) a skipping rope
  11. 11.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  12. 12.Which of these needs a heat insulator? (a) a roof sheet (b) a boat hull (c) a switch contact (d) a cooking pot handle
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a car windscreen? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  15. 15.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) plastic (d) graphite
  17. 17.Which of these needs a transparent material? (a) a roof sheet (b) a cooking pot handle (c) a window pane (d) the core of a wire
  18. 18.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  19. 19.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  20. 20.🔍 Which is the odd one out? (a) copper (b) plastic (c) dry wood (d) glass
  21. 21.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  22. 22.Which of these needs a transparent material? (a) an umbrella cover (b) a car windscreen (c) a plug pin (d) a roof sheet
  23. 23.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  24. 24.True or false: a boat hull needs a waterproof material. (a) False (b) True
  25. 25.Which of these needs a heat insulator? (a) a spectacle lens (b) an oven glove (c) a switch contact (d) a skipping rope
  26. 26.True or false: a skipping rope needs a flexible material. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) graphite (b) brass (c) aluminium (d) dry wood
  28. 28.True or false: a window pane needs a flexible material. (a) False (b) True
  29. 29.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  30. 30.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  32. 32.🧱 Which property matters most for an oven glove? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  33. 33.Which of these needs an electrical conductor? (a) a yoga mat (b) a raincoat (c) a tea flask lining (d) the core of a wire
  34. 34.Which of these needs a waterproof material? (a) a cooking pot handle (b) an umbrella cover (c) an oven glove (d) a car windscreen
  35. 35.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) aluminium (d) wood or plastic
  37. 37.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  38. 38.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  39. 39.🔍 Which is the odd one out? (a) graphite (b) iron (c) copper (d) cotton cloth
  40. 40.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) heat insulator (d) flexible

Answer key

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

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