← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 670 · 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.True or false: an oven glove needs a heat insulator. (a) False (b) True
  2. 2.Which of these needs an electrical conductor? (a) a yoga mat (b) the core of a wire (c) a hair band (d) a tea flask lining
  3. 3.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  4. 4.Which of these needs a flexible material? (a) a spectacle lens (b) a hair band (c) a tea flask lining (d) a cooking pot handle
  5. 5.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) copper (d) brass
  6. 6.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  8. 8.Which of these needs an electrical conductor? (a) a yoga mat (b) a spectacle lens (c) a window pane (d) a plug pin
  9. 9.Which of these needs a flexible material? (a) a boat hull (b) a water tank (c) a yoga mat (d) a spectacle lens
  10. 10.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  11. 11.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) copper (d) aluminium
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.Which of these needs a waterproof material? (a) a water tank (b) a yoga mat (c) a magnifier lens (d) a plug pin
  14. 14.🔍 Which is the odd one out? (a) plastic (b) rubber (c) aluminium (d) clay pottery
  15. 15.Which of these needs a heat insulator? (a) an oven glove (b) a plug pin (c) an umbrella cover (d) a magnifier lens
  16. 16.Which of these needs a waterproof material? (a) a skipping rope (b) a roof sheet (c) a window pane (d) a yoga mat
  17. 17.Which of these needs a waterproof material? (a) a car windscreen (b) a switch contact (c) a raincoat (d) a skipping rope
  18. 18.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  19. 19.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  21. 21.🔍 Which is the odd one out? (a) steel (b) rubber (c) cotton cloth (d) plastic
  22. 22.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
  23. 23.True or false: a hair band needs a flexible material. (a) False (b) True
  24. 24.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  25. 25.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  27. 27.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  28. 28.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  29. 29.Which of these needs a transparent material? (a) a switch contact (b) a roof sheet (c) the core of a wire (d) a magnifier lens
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.Which of these needs a transparent material? (a) a boat hull (b) a switch contact (c) a cooking pot handle (d) a car windscreen
  32. 32.Which of these needs a transparent material? (a) a hair band (b) an umbrella cover (c) a water tank (d) a spectacle lens
  33. 33.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  34. 34.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  35. 35.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) brass (d) steel
  36. 36.🧱 Which property matters most for a plug pin? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  37. 37.Which of these needs a waterproof material? (a) a spectacle lens (b) a hair band (c) a skipping rope (d) a boat hull
  38. 38.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) flexible (d) transparent

Answer key

  1. True
  2. the core of a wire
  3. flexible
  4. a hair band
  5. dry wood
  6. a conductor
  7. flexible
  8. a plug pin
  9. a yoga mat
  10. glass
  11. clay pottery
  12. a conductor
  13. a water tank
  14. aluminium
  15. an oven glove
  16. a roof sheet
  17. a raincoat
  18. steel
  19. a conductor
  20. waterproof
  21. steel
  22. plastic-coated cloth
  23. True
  24. waterproof
  25. an insulator
  26. wood or plastic
  27. copper
  28. True
  29. a magnifier lens
  30. an insulator
  31. a car windscreen
  32. a spectacle lens
  33. True
  34. False
  35. cotton cloth
  36. electrical conductor
  37. a boat hull
  38. an insulator
  39. a conductor
  40. electrical conductor

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