← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 432 · 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 rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  3. 3.Which of these needs a transparent material? (a) the core of a wire (b) a skipping rope (c) a window pane (d) a car seat belt
  4. 4.Which of these needs a flexible material? (a) a water tank (b) a spectacle lens (c) a hair band (d) a raincoat
  5. 5.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  6. 6.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  7. 7.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) graphite (d) aluminium
  9. 9.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) aluminium (d) steel
  10. 10.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  11. 11.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  12. 12.🔍 Which is the odd one out? (a) iron (b) copper (c) rubber (d) graphite
  13. 13.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  14. 14.True or false: a raincoat needs a flexible material. (a) True (b) False
  15. 15.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  18. 18.🔍 Which is the odd one out? (a) iron (b) glass (c) rubber (d) dry wood
  19. 19.Which of these needs a flexible material? (a) a switch contact (b) a car windscreen (c) a car seat belt (d) a cooking pot handle
  20. 20.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  21. 21.🔍 Which is the odd one out? (a) brass (b) iron (c) plastic (d) aluminium
  22. 22.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  23. 23.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  24. 24.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) dry wood (d) clay pottery
  25. 25.True or false: a boat hull needs a waterproof material. (a) True (b) False
  26. 26.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  28. 28.Which of these needs a waterproof material? (a) the core of a wire (b) a magnifier lens (c) a plug pin (d) a raincoat
  29. 29.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  30. 30.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  32. 32.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  33. 33.True or false: a car windscreen needs a transparent material. (a) True (b) False
  34. 34.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  36. 36.Which of these needs an electrical conductor? (a) a skipping rope (b) an umbrella cover (c) the core of a wire (d) a window pane
  37. 37.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  38. 38.Which of these needs a transparent material? (a) a magnifier lens (b) a boat hull (c) a roof sheet (d) a switch contact
  39. 39.Which of these needs a transparent material? (a) a skipping rope (b) a raincoat (c) a boat hull (d) a car windscreen
  40. 40.Which of these needs a waterproof material? (a) a window pane (b) a magnifier lens (c) a car windscreen (d) an umbrella cover

Answer key

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

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