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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 394 · 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 car seat belt? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  2. 2.True or false: a skipping rope needs a flexible material. (a) False (b) True
  3. 3.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  4. 4.True or false: a window pane needs a transparent material. (a) True (b) False
  5. 5.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  6. 6.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  7. 7.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) brass (d) clay pottery
  8. 8.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  11. 11.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.Which of these needs a waterproof material? (a) a switch contact (b) an umbrella cover (c) a car seat belt (d) a window pane
  14. 14.Which of these needs a transparent material? (a) a skipping rope (b) a yoga mat (c) a water tank (d) a window pane
  15. 15.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  16. 16.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  20. 20.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  22. 22.🔍 Which is the odd one out? (a) aluminium (b) copper (c) plastic (d) brass
  23. 23.Which of these needs a waterproof material? (a) the core of a wire (b) a switch contact (c) a window pane (d) a boat hull
  24. 24.Which of these needs a transparent material? (a) a tea flask lining (b) a boat hull (c) a spectacle lens (d) a car seat belt
  25. 25.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🔍 Which is the odd one out? (a) plastic (b) rubber (c) dry wood (d) steel
  27. 27.True or false: an oven glove needs a waterproof material. (a) False (b) True
  28. 28.Which of these needs a waterproof material? (a) a water tank (b) a yoga mat (c) a magnifier lens (d) a window pane
  29. 29.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: a hair band needs a waterproof material. (a) False (b) True
  31. 31.Which of these needs a flexible material? (a) an umbrella cover (b) a tea flask lining (c) a switch contact (d) a car seat belt
  32. 32.🧱 Which property matters most for a window pane? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  33. 33.🧱 Which property matters most for a plug pin? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  34. 34.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  35. 35.True or false: a water tank needs a waterproof material. (a) True (b) False
  36. 36.Which of these needs an electrical conductor? (a) a water tank (b) a cooking pot handle (c) a magnifier lens (d) a switch contact
  37. 37.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) plastic (d) copper
  38. 38.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  39. 39.🔍 Which is the odd one out? (a) iron (b) steel (c) copper (d) glass
  40. 40.True or false: the core of a wire needs an electrical conductor. (a) True (b) False

Answer key

  1. flexible
  2. True
  3. transparent
  4. True
  5. electrical conductor
  6. waterproof
  7. clay pottery
  8. an insulator
  9. a conductor
  10. False
  11. waterproof
  12. an insulator
  13. an umbrella cover
  14. a window pane
  15. flexible
  16. an insulator
  17. a conductor
  18. an insulator
  19. glass
  20. a conductor
  21. electrical conductor
  22. plastic
  23. a boat hull
  24. a spectacle lens
  25. an insulator
  26. steel
  27. False
  28. a water tank
  29. a conductor
  30. False
  31. a car seat belt
  32. transparent
  33. electrical conductor
  34. False
  35. True
  36. a switch contact
  37. copper
  38. steel
  39. glass
  40. True

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