← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 823 · 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 a window pane? (a) brick (b) glass (c) wood (d) steel
  2. 2.🔍 Which is the odd one out? (a) rubber (b) copper (c) dry wood (d) glass
  3. 3.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  4. 4.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  5. 5.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  7. 7.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  8. 8.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🔍 Which is the odd one out? (a) aluminium (b) copper (c) glass (d) iron
  10. 10.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  11. 11.True or false: a switch contact needs a transparent material. (a) False (b) True
  12. 12.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  13. 13.True or false: a raincoat needs a transparent material. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) iron (d) brass
  15. 15.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  16. 16.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) brass (d) rubber
  17. 17.Which of these needs an electrical conductor? (a) a skipping rope (b) the core of a wire (c) a boat hull (d) a window pane
  18. 18.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.True or false: a car seat belt needs a flexible material. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) graphite (b) steel (c) brass (d) plastic
  22. 22.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  23. 23.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  24. 24.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  25. 25.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  26. 26.True or false: a boat hull needs a flexible material. (a) False (b) True
  27. 27.Which of these needs a flexible material? (a) a skipping rope (b) the core of a wire (c) an umbrella cover (d) a raincoat
  28. 28.Which of these needs a transparent material? (a) the core of a wire (b) a magnifier lens (c) a cooking pot handle (d) a yoga mat
  29. 29.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  30. 30.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  31. 31.True or false: a boat hull needs a heat insulator. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) graphite (b) glass (c) rubber (d) plastic
  33. 33.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  35. 35.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  36. 36.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  37. 37.Which of these needs a heat insulator? (a) a car windscreen (b) a window pane (c) a car seat belt (d) a tea flask lining
  38. 38.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  40. 40.Which of these needs a flexible material? (a) a hair band (b) a spectacle lens (c) an umbrella cover (d) a water tank

Answer key

  1. glass
  2. copper
  3. waterproof
  4. wood or plastic
  5. an insulator
  6. copper
  7. False
  8. an insulator
  9. glass
  10. transparent
  11. False
  12. False
  13. False
  14. cotton cloth
  15. waterproof
  16. brass
  17. the core of a wire
  18. True
  19. an insulator
  20. True
  21. plastic
  22. waterproof
  23. waterproof
  24. False
  25. True
  26. False
  27. a skipping rope
  28. a magnifier lens
  29. flexible
  30. False
  31. False
  32. graphite
  33. a conductor
  34. transparent
  35. True
  36. transparent
  37. a tea flask lining
  38. an insulator
  39. heat insulator
  40. a hair band

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