← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 861 · 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 switch contact? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  2. 2.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  3. 3.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) iron (d) copper
  4. 4.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  5. 5.Which of these needs a transparent material? (a) a yoga mat (b) a switch contact (c) a magnifier lens (d) a boat hull
  6. 6.🔍 Which is the odd one out? (a) dry wood (b) steel (c) rubber (d) clay pottery
  7. 7.🔍 Which is the odd one out? (a) aluminium (b) glass (c) brass (d) iron
  8. 8.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  10. 10.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  11. 11.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  12. 12.Which of these needs a transparent material? (a) a skipping rope (b) a spectacle lens (c) a raincoat (d) a cooking pot handle
  13. 13.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  14. 14.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  15. 15.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.Which of these needs an electrical conductor? (a) a raincoat (b) a tea flask lining (c) a hair band (d) the core of a wire
  17. 17.True or false: a car windscreen needs a flexible material. (a) True (b) False
  18. 18.Which of these needs a heat insulator? (a) a plug pin (b) a skipping rope (c) a spectacle lens (d) a cooking pot handle
  19. 19.🔍 Which is the odd one out? (a) brass (b) iron (c) rubber (d) steel
  20. 20.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  21. 21.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  22. 22.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  23. 23.Which of these needs a transparent material? (a) a tea flask lining (b) a water tank (c) a window pane (d) a cooking pot handle
  24. 24.Which of these needs a flexible material? (a) a plug pin (b) a yoga mat (c) a switch contact (d) a magnifier lens
  25. 25.Which of these needs a waterproof material? (a) a skipping rope (b) a yoga mat (c) a water tank (d) a cooking pot handle
  26. 26.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a waterproof material? (a) a spectacle lens (b) a yoga mat (c) a magnifier lens (d) a raincoat
  28. 28.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  29. 29.True or false: an oven glove needs a heat insulator. (a) False (b) True
  30. 30.🧱 Which property matters most for a yoga mat? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  31. 31.🔍 Which is the odd one out? (a) dry wood (b) brass (c) aluminium (d) copper
  32. 32.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  34. 34.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  35. 35.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  36. 36.Which of these needs a waterproof material? (a) a yoga mat (b) the core of a wire (c) a spectacle lens (d) an umbrella cover
  37. 37.Which of these needs a heat insulator? (a) a skipping rope (b) a window pane (c) an umbrella cover (d) an oven glove
  38. 38.🧱 Which property matters most for an oven glove? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  39. 39.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids