← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 854 · 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 raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  2. 2.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🔍 Which is the odd one out? (a) copper (b) iron (c) plastic (d) graphite
  4. 4.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  5. 5.Which of these needs a flexible material? (a) a plug pin (b) a yoga mat (c) a tea flask lining (d) the core of a wire
  6. 6.Which of these needs a heat insulator? (a) a yoga mat (b) a raincoat (c) a cooking pot handle (d) a switch contact
  7. 7.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  8. 8.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  9. 9.Which of these needs an electrical conductor? (a) a window pane (b) an umbrella cover (c) a plug pin (d) a spectacle lens
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🔍 Which is the odd one out? (a) copper (b) dry wood (c) rubber (d) cotton cloth
  12. 12.Which of these needs a waterproof material? (a) a car windscreen (b) a switch contact (c) an umbrella cover (d) a car seat belt
  13. 13.Which of these needs a flexible material? (a) a roof sheet (b) a switch contact (c) a skipping rope (d) a plug pin
  14. 14.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) dry wood (d) aluminium
  15. 15.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.Which of these needs a heat insulator? (a) a plug pin (b) a water tank (c) the core of a wire (d) an oven glove
  18. 18.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  19. 19.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) iron (d) glass
  20. 20.True or false: a roof sheet needs a transparent material. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) graphite (d) plastic
  22. 22.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  23. 23.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  24. 24.True or false: a hair band needs a flexible material. (a) False (b) True
  25. 25.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  26. 26.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  27. 27.True or false: an oven glove needs a heat insulator. (a) False (b) True
  28. 28.True or false: a raincoat needs a flexible material. (a) True (b) False
  29. 29.🧱 Which property matters most for a plug pin? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  30. 30.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  31. 31.🧱 Which property matters most for a window pane? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  32. 32.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  33. 33.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.Which of these needs a transparent material? (a) a tea flask lining (b) a raincoat (c) a switch contact (d) a window pane
  35. 35.🧱 Which property matters most for a spectacle lens? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  36. 36.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  37. 37.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  38. 38.True or false: a skipping rope needs a transparent material. (a) True (b) False
  39. 39.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. plastic-coated cloth
  2. a conductor
  3. plastic
  4. copper
  5. a yoga mat
  6. a cooking pot handle
  7. heat insulator
  8. waterproof
  9. a plug pin
  10. a conductor
  11. copper
  12. an umbrella cover
  13. a skipping rope
  14. aluminium
  15. a conductor
  16. an insulator
  17. an oven glove
  18. wood or plastic
  19. iron
  20. False
  21. graphite
  22. heat insulator
  23. electrical conductor
  24. True
  25. False
  26. heat insulator
  27. True
  28. False
  29. electrical conductor
  30. False
  31. transparent
  32. glass
  33. an insulator
  34. a window pane
  35. transparent
  36. steel
  37. False
  38. False
  39. an insulator
  40. a conductor

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