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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 956 · 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 aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  3. 3.Which of these needs a waterproof material? (a) a switch contact (b) a hair band (c) a raincoat (d) a magnifier lens
  4. 4.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  5. 5.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  6. 6.Which of these needs a waterproof material? (a) an umbrella cover (b) a hair band (c) a magnifier lens (d) a car windscreen
  7. 7.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) glass (d) copper
  8. 8.🔍 Which is the odd one out? (a) dry wood (b) glass (c) iron (d) rubber
  9. 9.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  10. 10.True or false: a window pane needs a transparent material. (a) True (b) False
  11. 11.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  12. 12.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  13. 13.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) rubber (d) glass
  14. 14.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  15. 15.🔍 Which is the odd one out? (a) rubber (b) glass (c) dry wood (d) steel
  16. 16.Which of these needs a transparent material? (a) a switch contact (b) a boat hull (c) a hair band (d) a car windscreen
  17. 17.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  18. 18.Which of these needs an electrical conductor? (a) the core of a wire (b) a tea flask lining (c) a roof sheet (d) a car windscreen
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.🧱 Which property matters most for a spectacle lens? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  21. 21.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  22. 22.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  24. 24.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  25. 25.🔍 Which is the odd one out? (a) brass (b) steel (c) dry wood (d) aluminium
  26. 26.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  27. 27.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  30. 30.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) glass (d) cotton cloth
  31. 31.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) aluminium (d) clay pottery
  32. 32.Which of these needs a heat insulator? (a) a yoga mat (b) a plug pin (c) an umbrella cover (d) a tea flask lining
  33. 33.Which of these needs a transparent material? (a) a window pane (b) a boat hull (c) an umbrella cover (d) a car seat belt
  34. 34.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.True or false: a car seat belt needs a flexible material. (a) True (b) False
  36. 36.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.True or false: a water tank needs a flexible material. (a) True (b) False
  38. 38.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  39. 39.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  40. 40.True or false: a skipping rope needs an electrical conductor. (a) False (b) True

Answer key

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

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