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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 750 · 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 plug pin? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  2. 2.True or false: a raincoat needs a heat insulator. (a) True (b) False
  3. 3.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  4. 4.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  5. 5.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  6. 6.Which of these needs an electrical conductor? (a) a roof sheet (b) a switch contact (c) a skipping rope (d) a window pane
  7. 7.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  8. 8.Which of these needs a transparent material? (a) a window pane (b) a switch contact (c) a car seat belt (d) a cooking pot handle
  9. 9.🔍 Which is the odd one out? (a) graphite (b) brass (c) dry wood (d) steel
  10. 10.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  11. 11.🔍 Which is the odd one out? (a) iron (b) plastic (c) dry wood (d) rubber
  12. 12.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  13. 13.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  14. 14.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  15. 15.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) cotton cloth (d) glass
  16. 16.🔍 Which is the odd one out? (a) glass (b) aluminium (c) copper (d) brass
  17. 17.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  18. 18.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) iron (b) aluminium (c) steel (d) cotton cloth
  20. 20.Which of these needs a flexible material? (a) a magnifier lens (b) a window pane (c) an umbrella cover (d) a yoga mat
  21. 21.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  22. 22.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  23. 23.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  24. 24.🔍 Which is the odd one out? (a) rubber (b) copper (c) steel (d) brass
  25. 25.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  27. 27.True or false: a raincoat needs a waterproof material. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) rubber (b) plastic (c) copper (d) cotton cloth
  29. 29.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: a water tank needs a waterproof material. (a) False (b) True
  32. 32.True or false: a car seat belt needs a flexible material. (a) True (b) False
  33. 33.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  34. 34.Which of these needs a waterproof material? (a) a tea flask lining (b) a switch contact (c) an umbrella cover (d) a cooking pot handle
  35. 35.True or false: a window pane needs a transparent material. (a) True (b) False
  36. 36.True or false: a raincoat needs a transparent material. (a) True (b) False
  37. 37.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.Which of these needs a flexible material? (a) a window pane (b) a car seat belt (c) an umbrella cover (d) a magnifier lens
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) heat insulator (d) flexible

Answer key

  1. electrical conductor
  2. False
  3. transparent
  4. copper
  5. plastic-coated cloth
  6. a switch contact
  7. steel
  8. a window pane
  9. dry wood
  10. transparent
  11. iron
  12. True
  13. False
  14. waterproof
  15. aluminium
  16. glass
  17. heat insulator
  18. a conductor
  19. cotton cloth
  20. a yoga mat
  21. True
  22. flexible
  23. flexible
  24. rubber
  25. a conductor
  26. electrical conductor
  27. True
  28. copper
  29. a conductor
  30. an insulator
  31. True
  32. True
  33. wood or plastic
  34. an umbrella cover
  35. True
  36. False
  37. an insulator
  38. a car seat belt
  39. an insulator
  40. flexible

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