← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 766 · 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.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  2. 2.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) rubber (d) dry wood
  4. 4.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  5. 5.🔍 Which is the odd one out? (a) dry wood (b) copper (c) brass (d) aluminium
  6. 6.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  7. 7.Which of these needs a heat insulator? (a) a plug pin (b) a boat hull (c) a switch contact (d) a cooking pot handle
  8. 8.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  9. 9.🧱 Which property matters most for a spectacle lens? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  10. 10.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  11. 11.Which of these needs a waterproof material? (a) an oven glove (b) a raincoat (c) a hair band (d) a switch contact
  12. 12.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  13. 13.Which of these needs a transparent material? (a) a water tank (b) a magnifier lens (c) a raincoat (d) a hair band
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  16. 16.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  18. 18.Which of these needs a transparent material? (a) a water tank (b) a spectacle lens (c) a roof sheet (d) a raincoat
  19. 19.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) steel (d) dry wood
  20. 20.Which of these needs a waterproof material? (a) a spectacle lens (b) an umbrella cover (c) a tea flask lining (d) a car seat belt
  21. 21.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  22. 22.True or false: a car seat belt needs a heat insulator. (a) False (b) True
  23. 23.True or false: a window pane needs a flexible material. (a) True (b) False
  24. 24.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) glass (d) graphite
  25. 25.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🔍 Which is the odd one out? (a) graphite (b) glass (c) copper (d) iron
  30. 30.🔍 Which is the odd one out? (a) steel (b) copper (c) plastic (d) iron
  31. 31.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  32. 32.Which of these needs a flexible material? (a) a spectacle lens (b) a water tank (c) a cooking pot handle (d) a yoga mat
  33. 33.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  34. 34.🔍 Which is the odd one out? (a) rubber (b) plastic (c) copper (d) cotton cloth
  35. 35.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  36. 36.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  38. 38.True or false: a water tank needs a heat insulator. (a) True (b) False
  39. 39.🧱 Which property matters most for a window pane? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  40. 40.True or false: a raincoat needs a flexible material. (a) False (b) True

Answer key

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

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