← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 390 · 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 water tank? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  2. 2.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  3. 3.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) copper (d) brass
  6. 6.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) copper (d) steel
  7. 7.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  8. 8.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  9. 9.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  11. 11.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  12. 12.True or false: a hair band needs a waterproof material. (a) True (b) False
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a magnifier lens? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  15. 15.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) aluminium (d) clay pottery
  16. 16.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🔍 Which is the odd one out? (a) graphite (b) rubber (c) aluminium (d) iron
  18. 18.Which of these needs a waterproof material? (a) an umbrella cover (b) a skipping rope (c) a hair band (d) a window pane
  19. 19.Which of these needs a heat insulator? (a) a skipping rope (b) a hair band (c) a cooking pot handle (d) a roof sheet
  20. 20.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) graphite (b) copper (c) cotton cloth (d) steel
  22. 22.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  23. 23.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  24. 24.Which of these needs an electrical conductor? (a) a car windscreen (b) a tea flask lining (c) the core of a wire (d) a window pane
  25. 25.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) glass (c) iron (d) plastic
  28. 28.True or false: a yoga mat needs a flexible material. (a) False (b) True
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  32. 32.Which of these needs a waterproof material? (a) a cooking pot handle (b) a plug pin (c) a water tank (d) a yoga mat
  33. 33.Which of these needs a heat insulator? (a) an oven glove (b) a car seat belt (c) a window pane (d) a plug pin
  34. 34.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  35. 35.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) clay pottery (d) brass
  36. 36.Which of these needs an electrical conductor? (a) a switch contact (b) a raincoat (c) a spectacle lens (d) a roof sheet
  37. 37.True or false: an oven glove needs a heat insulator. (a) False (b) True
  38. 38.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  39. 39.🧱 Which property matters most for a plug pin? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  40. 40.True or false: a car seat belt needs a flexible material. (a) False (b) True

Answer key

  1. waterproof
  2. glass
  3. waterproof
  4. a conductor
  5. clay pottery
  6. dry wood
  7. waterproof
  8. transparent
  9. a conductor
  10. plastic-coated cloth
  11. steel
  12. False
  13. an insulator
  14. transparent
  15. aluminium
  16. a conductor
  17. rubber
  18. an umbrella cover
  19. a cooking pot handle
  20. an insulator
  21. cotton cloth
  22. False
  23. copper
  24. the core of a wire
  25. True
  26. an insulator
  27. iron
  28. True
  29. a conductor
  30. an insulator
  31. True
  32. a water tank
  33. an oven glove
  34. heat insulator
  35. brass
  36. a switch contact
  37. True
  38. flexible
  39. electrical conductor
  40. True

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