← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 517 · 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 aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which property matters most for an oven glove? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  3. 3.🔍 Which is the odd one out? (a) steel (b) rubber (c) glass (d) cotton cloth
  4. 4.True or false: a water tank needs a waterproof material. (a) False (b) True
  5. 5.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  6. 6.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  7. 7.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  8. 8.Which of these needs a flexible material? (a) a switch contact (b) a window pane (c) a boat hull (d) a car seat belt
  9. 9.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.Which of these needs a waterproof material? (a) a hair band (b) a boat hull (c) a yoga mat (d) a magnifier lens
  11. 11.Which of these needs a waterproof material? (a) a tea flask lining (b) a car seat belt (c) an oven glove (d) a roof sheet
  12. 12.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  13. 13.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  14. 14.🔍 Which is the odd one out? (a) graphite (b) copper (c) clay pottery (d) iron
  15. 15.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  17. 17.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  18. 18.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.True or false: a water tank needs a heat insulator. (a) True (b) False
  20. 20.🧱 Which property matters most for a switch contact? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  21. 21.Which of these needs a waterproof material? (a) a cooking pot handle (b) a raincoat (c) the core of a wire (d) a skipping rope
  22. 22.Which of these needs a heat insulator? (a) a raincoat (b) a tea flask lining (c) a switch contact (d) a car windscreen
  23. 23.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  24. 24.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) brass (b) plastic (c) graphite (d) aluminium
  26. 26.Which of these needs a heat insulator? (a) the core of a wire (b) a boat hull (c) a cooking pot handle (d) a yoga mat
  27. 27.True or false: a skipping rope needs a flexible material. (a) False (b) True
  28. 28.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  30. 30.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  31. 31.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  32. 32.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) dry wood (d) brass
  33. 33.🔍 Which is the odd one out? (a) glass (b) iron (c) clay pottery (d) plastic
  34. 34.Which of these needs a transparent material? (a) a raincoat (b) a car seat belt (c) a boat hull (d) a spectacle lens
  35. 35.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) copper (b) rubber (c) graphite (d) iron
  38. 38.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  39. 39.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  40. 40.Which of these needs an electrical conductor? (a) a boat hull (b) a yoga mat (c) a plug pin (d) a raincoat

Answer key

  1. a conductor
  2. heat insulator
  3. steel
  4. True
  5. flexible
  6. copper
  7. steel
  8. a car seat belt
  9. an insulator
  10. a boat hull
  11. a roof sheet
  12. wood or plastic
  13. glass
  14. clay pottery
  15. a conductor
  16. False
  17. transparent
  18. an insulator
  19. False
  20. electrical conductor
  21. a raincoat
  22. a tea flask lining
  23. True
  24. True
  25. plastic
  26. a cooking pot handle
  27. True
  28. a conductor
  29. plastic-coated cloth
  30. heat insulator
  31. flexible
  32. brass
  33. iron
  34. a spectacle lens
  35. a conductor
  36. a conductor
  37. rubber
  38. waterproof
  39. transparent
  40. a plug pin

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