← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 61 · 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 skipping rope? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  2. 2.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  3. 3.🧱 Which property matters most for a boat hull? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  4. 4.Which of these needs an electrical conductor? (a) a hair band (b) a cooking pot handle (c) a plug pin (d) an umbrella cover
  5. 5.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  8. 8.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  10. 10.🧱 Which property matters most for a raincoat? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  11. 11.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) plastic (d) glass
  12. 12.Which of these needs a waterproof material? (a) a tea flask lining (b) a switch contact (c) an umbrella cover (d) a window pane
  13. 13.Which of these needs a waterproof material? (a) a water tank (b) a window pane (c) a switch contact (d) a car seat belt
  14. 14.🔍 Which is the odd one out? (a) copper (b) aluminium (c) clay pottery (d) graphite
  15. 15.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  16. 16.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  17. 17.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  18. 18.🔍 Which is the odd one out? (a) plastic (b) graphite (c) iron (d) aluminium
  19. 19.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  20. 20.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  21. 21.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) clay pottery (d) aluminium
  22. 22.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  23. 23.🧱 Which property matters most for a tea flask lining? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  24. 24.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  25. 25.Which of these needs an electrical conductor? (a) a car seat belt (b) a skipping rope (c) the core of a wire (d) a car windscreen
  26. 26.Which of these needs a flexible material? (a) an umbrella cover (b) a roof sheet (c) a plug pin (d) a skipping rope
  27. 27.🔍 Which is the odd one out? (a) iron (b) rubber (c) glass (d) plastic
  28. 28.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  30. 30.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  31. 31.Which of these needs a waterproof material? (a) a skipping rope (b) a roof sheet (c) a tea flask lining (d) a magnifier lens
  32. 32.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  34. 34.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  36. 36.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  37. 37.Which of these needs an electrical conductor? (a) a boat hull (b) a raincoat (c) a spectacle lens (d) a switch contact
  38. 38.True or false: the core of a wire needs a flexible material. (a) True (b) False
  39. 39.True or false: a plug pin needs a heat insulator. (a) True (b) False
  40. 40.True or false: a boat hull needs a flexible material. (a) True (b) False

Answer key

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

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