← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 821 · 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 window pane? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  2. 2.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  3. 3.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  4. 4.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  5. 5.Which of these needs a waterproof material? (a) a hair band (b) a window pane (c) a cooking pot handle (d) an umbrella cover
  6. 6.Which of these needs a waterproof material? (a) a plug pin (b) a boat hull (c) a window pane (d) a car seat belt
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🔍 Which is the odd one out? (a) dry wood (b) brass (c) plastic (d) clay pottery
  9. 9.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) brass (d) iron
  10. 10.Which of these needs a flexible material? (a) a plug pin (b) an umbrella cover (c) a water tank (d) a hair band
  11. 11.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  13. 13.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  14. 14.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  15. 15.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  16. 16.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🔍 Which is the odd one out? (a) iron (b) aluminium (c) dry wood (d) steel
  18. 18.Which of these needs a heat insulator? (a) a magnifier lens (b) an oven glove (c) a spectacle lens (d) a window pane
  19. 19.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) iron (d) copper
  20. 20.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  21. 21.Which of these needs a transparent material? (a) a plug pin (b) a switch contact (c) a roof sheet (d) a window pane
  22. 22.True or false: a skipping rope needs a flexible material. (a) True (b) False
  23. 23.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  24. 24.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  25. 25.Which of these needs a transparent material? (a) a spectacle lens (b) a water tank (c) an umbrella cover (d) a roof sheet
  26. 26.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: an oven glove needs a transparent material. (a) False (b) True
  28. 28.🧱 Which property matters most for a hair band? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  29. 29.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  30. 30.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🔍 Which is the odd one out? (a) copper (b) clay pottery (c) glass (d) cotton cloth
  32. 32.True or false: a hair band needs a flexible material. (a) False (b) True
  33. 33.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  34. 34.🧱 Which property matters most for the core of a wire? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  35. 35.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  36. 36.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  37. 37.Which of these needs a flexible material? (a) a skipping rope (b) an umbrella cover (c) a cooking pot handle (d) a spectacle lens
  38. 38.True or false: a switch contact needs a waterproof material. (a) False (b) True
  39. 39.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  40. 40.True or false: a spectacle lens needs a flexible material. (a) True (b) False

Answer key

  1. transparent
  2. copper
  3. plastic-coated cloth
  4. electrical conductor
  5. an umbrella cover
  6. a boat hull
  7. a conductor
  8. brass
  9. cotton cloth
  10. a hair band
  11. an insulator
  12. transparent
  13. steel
  14. True
  15. waterproof
  16. an insulator
  17. dry wood
  18. an oven glove
  19. wood or plastic
  20. True
  21. a window pane
  22. True
  23. heat insulator
  24. flexible
  25. a spectacle lens
  26. a conductor
  27. False
  28. flexible
  29. waterproof
  30. a conductor
  31. copper
  32. True
  33. waterproof
  34. electrical conductor
  35. transparent
  36. heat insulator
  37. a skipping rope
  38. False
  39. flexible
  40. False

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