← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 778 · 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 window pane needs a waterproof material. (a) False (b) True
  2. 2.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  3. 3.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  4. 4.Which of these needs a waterproof material? (a) a raincoat (b) a yoga mat (c) a car windscreen (d) a skipping rope
  5. 5.🔍 Which is the odd one out? (a) glass (b) steel (c) dry wood (d) cotton cloth
  6. 6.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  7. 7.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  8. 8.Which of these needs a heat insulator? (a) a tea flask lining (b) a hair band (c) a water tank (d) a car seat belt
  9. 9.🔍 Which is the odd one out? (a) copper (b) rubber (c) clay pottery (d) plastic
  10. 10.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  11. 11.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  14. 14.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  15. 15.True or false: a yoga mat needs a flexible material. (a) True (b) False
  16. 16.True or false: a water tank needs a waterproof material. (a) False (b) True
  17. 17.Which of these needs a waterproof material? (a) a hair band (b) a tea flask lining (c) an umbrella cover (d) a skipping rope
  18. 18.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  19. 19.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  20. 20.🔍 Which is the odd one out? (a) steel (b) dry wood (c) graphite (d) brass
  21. 21.🧱 Which property matters most for the core of a wire? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  22. 22.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  24. 24.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  25. 25.🔍 Which is the odd one out? (a) graphite (b) brass (c) copper (d) glass
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a transparent material? (a) a boat hull (b) a magnifier lens (c) a raincoat (d) an umbrella cover
  28. 28.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) dry wood (d) iron
  29. 29.True or false: a boat hull needs a waterproof material. (a) False (b) True
  30. 30.Which of these needs an electrical conductor? (a) a hair band (b) a raincoat (c) the core of a wire (d) a magnifier lens
  31. 31.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  32. 32.🔍 Which is the odd one out? (a) copper (b) iron (c) brass (d) plastic
  33. 33.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  34. 34.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  35. 35.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) plastic (d) rubber
  36. 36.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) dry wood (b) glass (c) plastic (d) aluminium
  38. 38.Which of these needs a heat insulator? (a) a boat hull (b) a switch contact (c) a hair band (d) a cooking pot handle
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. False
  2. flexible
  3. False
  4. a raincoat
  5. steel
  6. transparent
  7. heat insulator
  8. a tea flask lining
  9. copper
  10. True
  11. wood or plastic
  12. a conductor
  13. steel
  14. True
  15. True
  16. True
  17. an umbrella cover
  18. glass
  19. transparent
  20. dry wood
  21. electrical conductor
  22. an insulator
  23. copper
  24. waterproof
  25. glass
  26. a conductor
  27. a magnifier lens
  28. iron
  29. True
  30. the core of a wire
  31. waterproof
  32. plastic
  33. True
  34. waterproof
  35. brass
  36. a conductor
  37. aluminium
  38. a cooking pot handle
  39. an insulator
  40. a conductor

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