← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 46 · 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 material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  2. 2.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  3. 3.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.True or false: a skipping rope needs a flexible material. (a) False (b) True
  6. 6.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs an electrical conductor? (a) a boat hull (b) a switch contact (c) a yoga mat (d) a water tank
  8. 8.🔍 Which is the odd one out? (a) steel (b) iron (c) aluminium (d) clay pottery
  9. 9.True or false: a water tank needs a flexible material. (a) False (b) True
  10. 10.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  11. 11.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.Which of these needs a heat insulator? (a) a tea flask lining (b) a hair band (c) a car windscreen (d) a plug pin
  13. 13.Which of these needs a waterproof material? (a) a car windscreen (b) a cooking pot handle (c) a spectacle lens (d) a raincoat
  14. 14.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  15. 15.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  16. 16.True or false: a car windscreen needs a transparent material. (a) True (b) False
  17. 17.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  18. 18.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  19. 19.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  20. 20.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  21. 21.🔍 Which is the odd one out? (a) iron (b) aluminium (c) steel (d) rubber
  22. 22.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  23. 23.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  24. 24.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  25. 25.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) graphite (d) rubber
  26. 26.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🔍 Which is the odd one out? (a) copper (b) brass (c) graphite (d) plastic
  28. 28.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  29. 29.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  31. 31.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  32. 32.True or false: a car seat belt needs a flexible material. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) copper (b) brass (c) dry wood (d) steel
  34. 34.Which of these needs a transparent material? (a) a skipping rope (b) a raincoat (c) a boat hull (d) a window pane
  35. 35.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which property matters most for a boat hull? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  37. 37.Which of these needs a waterproof material? (a) a plug pin (b) a spectacle lens (c) an oven glove (d) an umbrella cover
  38. 38.🧱 Which property matters most for a magnifier lens? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  39. 39.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  40. 40.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) brass (d) cotton cloth

Answer key

  1. steel
  2. electrical conductor
  3. an insulator
  4. a conductor
  5. True
  6. an insulator
  7. a switch contact
  8. clay pottery
  9. False
  10. copper
  11. a conductor
  12. a tea flask lining
  13. a raincoat
  14. plastic-coated cloth
  15. True
  16. True
  17. heat insulator
  18. wood or plastic
  19. glass
  20. flexible
  21. rubber
  22. True
  23. flexible
  24. flexible
  25. graphite
  26. a conductor
  27. plastic
  28. waterproof
  29. an insulator
  30. electrical conductor
  31. transparent
  32. True
  33. dry wood
  34. a window pane
  35. an insulator
  36. waterproof
  37. an umbrella cover
  38. transparent
  39. heat insulator
  40. brass

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