← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 856 · 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 the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  2. 2.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  3. 3.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  5. 5.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs a transparent material? (a) a window pane (b) a skipping rope (c) a water tank (d) a tea flask lining
  8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.True or false: a boat hull needs a waterproof material. (a) True (b) False
  10. 10.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) plastic (d) clay pottery
  12. 12.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  13. 13.Which of these needs a waterproof material? (a) a boat hull (b) a car seat belt (c) a plug pin (d) a skipping rope
  14. 14.🔍 Which is the odd one out? (a) steel (b) aluminium (c) copper (d) clay pottery
  15. 15.Which of these needs a transparent material? (a) a car seat belt (b) a cooking pot handle (c) a car windscreen (d) an umbrella cover
  16. 16.Which of these needs a flexible material? (a) a hair band (b) the core of a wire (c) a car windscreen (d) a window pane
  17. 17.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  18. 18.Which of these needs an electrical conductor? (a) a boat hull (b) a magnifier lens (c) a car seat belt (d) a plug pin
  19. 19.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  20. 20.Which of these needs an electrical conductor? (a) a spectacle lens (b) an umbrella cover (c) a switch contact (d) a water tank
  21. 21.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  22. 22.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  23. 23.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  24. 24.🔍 Which is the odd one out? (a) glass (b) aluminium (c) graphite (d) iron
  25. 25.Which of these needs a waterproof material? (a) a spectacle lens (b) a plug pin (c) a raincoat (d) a skipping rope
  26. 26.Which of these needs a flexible material? (a) the core of a wire (b) a raincoat (c) a water tank (d) a car seat belt
  27. 27.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  28. 28.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  29. 29.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  30. 30.Which of these needs a flexible material? (a) the core of a wire (b) a roof sheet (c) a water tank (d) a skipping rope
  31. 31.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  33. 33.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.True or false: a window pane needs a transparent material. (a) False (b) True
  35. 35.Which of these needs an electrical conductor? (a) a tea flask lining (b) a car windscreen (c) a skipping rope (d) the core of a wire
  36. 36.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for a plug pin? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  38. 38.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  39. 39.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) brass (b) iron (c) plastic (d) steel

Answer key

  1. copper
  2. electrical conductor
  3. a conductor
  4. waterproof
  5. an insulator
  6. a conductor
  7. a window pane
  8. an insulator
  9. True
  10. a conductor
  11. graphite
  12. waterproof
  13. a boat hull
  14. clay pottery
  15. a car windscreen
  16. a hair band
  17. steel
  18. a plug pin
  19. False
  20. a switch contact
  21. plastic-coated cloth
  22. transparent
  23. heat insulator
  24. glass
  25. a raincoat
  26. a car seat belt
  27. glass
  28. wood or plastic
  29. transparent
  30. a skipping rope
  31. a conductor
  32. flexible
  33. an insulator
  34. True
  35. the core of a wire
  36. an insulator
  37. electrical conductor
  38. transparent
  39. False
  40. plastic

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