← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 853 · 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 skipping rope? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  2. 2.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🔍 Which is the odd one out? (a) graphite (b) copper (c) dry wood (d) iron
  4. 4.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  5. 5.Which of these needs a transparent material? (a) a boat hull (b) a spectacle lens (c) the core of a wire (d) an umbrella cover
  6. 6.Which of these needs a heat insulator? (a) a spectacle lens (b) an oven glove (c) the core of a wire (d) a boat hull
  7. 7.🔍 Which is the odd one out? (a) graphite (b) glass (c) cotton cloth (d) dry wood
  8. 8.Which of these needs an electrical conductor? (a) an umbrella cover (b) a spectacle lens (c) a tea flask lining (d) the core of a wire
  9. 9.Which of these needs a flexible material? (a) a water tank (b) a raincoat (c) a spectacle lens (d) a car seat belt
  10. 10.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  11. 11.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  12. 12.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  14. 14.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for a boat hull? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  19. 19.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) brass (d) graphite
  20. 20.Which of these needs a heat insulator? (a) an umbrella cover (b) a cooking pot handle (c) a spectacle lens (d) a boat hull
  21. 21.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  22. 22.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  23. 23.🧱 Which property matters most for a roof sheet? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  24. 24.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  25. 25.True or false: a skipping rope needs a transparent material. (a) True (b) False
  26. 26.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  28. 28.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  29. 29.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  30. 30.🧱 Which property matters most for a window pane? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  31. 31.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  32. 32.🔍 Which is the odd one out? (a) graphite (b) steel (c) rubber (d) brass
  33. 33.Which of these needs a waterproof material? (a) a tea flask lining (b) a magnifier lens (c) a raincoat (d) a spectacle lens
  34. 34.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  36. 36.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  37. 37.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a waterproof material? (a) a hair band (b) a switch contact (c) a cooking pot handle (d) a water tank
  39. 39.Which of these needs a transparent material? (a) a tea flask lining (b) the core of a wire (c) a car windscreen (d) a boat hull
  40. 40.Which of these needs a flexible material? (a) a skipping rope (b) a tea flask lining (c) a spectacle lens (d) a window pane

Answer key

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

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