← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 574 · 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 of these needs a waterproof material? (a) a raincoat (b) a car seat belt (c) a tea flask lining (d) a plug pin
  2. 2.True or false: an oven glove needs a heat insulator. (a) False (b) True
  3. 3.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  5. 5.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  8. 8.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) graphite (d) steel
  9. 9.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a waterproof material? (a) a water tank (b) a yoga mat (c) an oven glove (d) a switch contact
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  16. 16.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  17. 17.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  18. 18.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) steel (d) glass
  19. 19.Which of these needs a transparent material? (a) a cooking pot handle (b) a yoga mat (c) a raincoat (d) a spectacle lens
  20. 20.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  21. 21.Which of these needs an electrical conductor? (a) a water tank (b) a car windscreen (c) a switch contact (d) a roof sheet
  22. 22.Which of these needs an electrical conductor? (a) a roof sheet (b) the core of a wire (c) an oven glove (d) a magnifier lens
  23. 23.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  24. 24.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  25. 25.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🔍 Which is the odd one out? (a) iron (b) cotton cloth (c) aluminium (d) copper
  27. 27.🔍 Which is the odd one out? (a) aluminium (b) iron (c) copper (d) plastic
  28. 28.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  29. 29.Which of these needs a flexible material? (a) a car windscreen (b) a skipping rope (c) an umbrella cover (d) a water tank
  30. 30.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  31. 31.Which of these needs a transparent material? (a) a window pane (b) a tea flask lining (c) a yoga mat (d) a switch contact
  32. 32.Which of these needs a transparent material? (a) a raincoat (b) a car windscreen (c) a plug pin (d) a roof sheet
  33. 33.🧱 Which property matters most for a roof sheet? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  34. 34.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  35. 35.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  36. 36.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  38. 38.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
  39. 39.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) wood or plastic (d) copper
  40. 40.True or false: a yoga mat needs a flexible material. (a) False (b) True

Answer key

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

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