← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 341 · 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 skipping rope needs a flexible material. (a) False (b) True
  2. 2.True or false: a water tank needs a waterproof material. (a) True (b) False
  3. 3.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  4. 4.Which of these needs a transparent material? (a) a roof sheet (b) a magnifier lens (c) a cooking pot handle (d) a tea flask lining
  5. 5.True or false: a boat hull needs a waterproof material. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) iron (b) glass (c) aluminium (d) brass
  7. 7.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  9. 9.Which of these needs a heat insulator? (a) a car windscreen (b) a tea flask lining (c) a plug pin (d) a water tank
  10. 10.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  11. 11.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.Which of these needs a transparent material? (a) a car seat belt (b) a boat hull (c) a roof sheet (d) a car windscreen
  14. 14.True or false: an oven glove needs a heat insulator. (a) False (b) True
  15. 15.Which of these needs a flexible material? (a) a switch contact (b) a car seat belt (c) the core of a wire (d) a water tank
  16. 16.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  17. 17.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  19. 19.Which of these needs a transparent material? (a) a spectacle lens (b) a switch contact (c) a boat hull (d) an umbrella cover
  20. 20.True or false: a hair band needs a heat insulator. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) brass (b) copper (c) iron (d) plastic
  22. 22.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  23. 23.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) rubber (d) iron
  24. 24.True or false: a car seat belt needs a flexible material. (a) False (b) True
  25. 25.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  26. 26.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  27. 27.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) copper (b) graphite (c) clay pottery (d) steel
  29. 29.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  31. 31.Which of these needs a transparent material? (a) a window pane (b) an umbrella cover (c) a hair band (d) a car seat belt
  32. 32.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  34. 34.Which of these needs a heat insulator? (a) a boat hull (b) a window pane (c) a skipping rope (d) a cooking pot handle
  35. 35.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) copper (d) graphite
  37. 37.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  38. 38.Which of these needs a waterproof material? (a) a switch contact (b) a spectacle lens (c) a raincoat (d) a magnifier lens
  39. 39.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  40. 40.True or false: a plug pin needs an electrical conductor. (a) False (b) True

Answer key

  1. True
  2. True
  3. False
  4. a magnifier lens
  5. True
  6. glass
  7. a conductor
  8. waterproof
  9. a tea flask lining
  10. flexible
  11. an insulator
  12. a conductor
  13. a car windscreen
  14. True
  15. a car seat belt
  16. waterproof
  17. an insulator
  18. waterproof
  19. a spectacle lens
  20. False
  21. plastic
  22. electrical conductor
  23. iron
  24. True
  25. True
  26. electrical conductor
  27. True
  28. clay pottery
  29. a conductor
  30. copper
  31. a window pane
  32. an insulator
  33. glass
  34. a cooking pot handle
  35. False
  36. cotton cloth
  37. True
  38. a raincoat
  39. wood or plastic
  40. True

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