← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 149 · 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.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs a waterproof material? (a) the core of a wire (b) a raincoat (c) a car seat belt (d) a magnifier lens
  3. 3.Which of these needs an electrical conductor? (a) a car seat belt (b) a raincoat (c) a switch contact (d) a window pane
  4. 4.Which of these needs a waterproof material? (a) a tea flask lining (b) an umbrella cover (c) a car seat belt (d) a hair band
  5. 5.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  7. 7.True or false: an umbrella cover needs a flexible material. (a) True (b) False
  8. 8.True or false: the core of a wire needs a flexible material. (a) True (b) False
  9. 9.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) aluminium (d) wood or plastic
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🔍 Which is the odd one out? (a) graphite (b) iron (c) rubber (d) aluminium
  13. 13.Which of these needs a transparent material? (a) a cooking pot handle (b) a water tank (c) a car windscreen (d) an umbrella cover
  14. 14.True or false: a water tank needs a waterproof material. (a) True (b) False
  15. 15.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) plastic (d) copper
  17. 17.True or false: a switch contact needs a heat insulator. (a) False (b) True
  18. 18.Which of these needs a heat insulator? (a) a window pane (b) an umbrella cover (c) an oven glove (d) a boat hull
  19. 19.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  20. 20.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) glass (d) plastic
  21. 21.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  22. 22.Which of these needs a flexible material? (a) a roof sheet (b) a spectacle lens (c) an umbrella cover (d) a car seat belt
  23. 23.Which of these needs a flexible material? (a) a tea flask lining (b) a magnifier lens (c) a car windscreen (d) a yoga mat
  24. 24.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) glass (d) dry wood
  25. 25.True or false: a hair band needs a flexible material. (a) True (b) False
  26. 26.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  27. 27.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  28. 28.Which of these needs a waterproof material? (a) a tea flask lining (b) a water tank (c) a hair band (d) a cooking pot handle
  29. 29.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  31. 31.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🔍 Which is the odd one out? (a) rubber (b) brass (c) plastic (d) glass
  33. 33.🔍 Which is the odd one out? (a) copper (b) glass (c) iron (d) graphite
  34. 34.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  35. 35.True or false: a boat hull needs a flexible material. (a) True (b) False
  36. 36.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  37. 37.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  38. 38.🔍 Which is the odd one out? (a) dry wood (b) steel (c) cotton cloth (d) plastic
  39. 39.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) brass (b) dry wood (c) graphite (d) copper

Answer key

  1. a conductor
  2. a raincoat
  3. a switch contact
  4. an umbrella cover
  5. a conductor
  6. transparent
  7. False
  8. False
  9. wood or plastic
  10. an insulator
  11. a conductor
  12. rubber
  13. a car windscreen
  14. True
  15. an insulator
  16. copper
  17. False
  18. an oven glove
  19. waterproof
  20. aluminium
  21. heat insulator
  22. a car seat belt
  23. a yoga mat
  24. iron
  25. True
  26. flexible
  27. transparent
  28. a water tank
  29. an insulator
  30. waterproof
  31. an insulator
  32. brass
  33. glass
  34. copper
  35. False
  36. glass
  37. waterproof
  38. steel
  39. False
  40. dry wood

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