← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 932 · 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 cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🔍 Which is the odd one out? (a) glass (b) brass (c) steel (d) graphite
  3. 3.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  4. 4.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  5. 5.🔍 Which is the odd one out? (a) aluminium (b) iron (c) copper (d) cotton cloth
  6. 6.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  7. 7.True or false: an oven glove needs a transparent material. (a) True (b) False
  8. 8.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  9. 9.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  10. 10.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  11. 11.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  12. 12.🔍 Which is the odd one out? (a) brass (b) aluminium (c) clay pottery (d) steel
  13. 13.🧱 Which material is best for a cooking pot handle? (a) iron (b) copper (c) wood or plastic (d) aluminium
  14. 14.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  15. 15.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  16. 16.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  17. 17.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.Which of these needs a flexible material? (a) a window pane (b) a tea flask lining (c) a car seat belt (d) a roof sheet
  19. 19.Which of these needs a waterproof material? (a) a plug pin (b) a skipping rope (c) a cooking pot handle (d) a boat hull
  20. 20.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  21. 21.Which of these needs a transparent material? (a) an umbrella cover (b) a car seat belt (c) a window pane (d) a skipping rope
  22. 22.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  23. 23.🧱 Which property matters most for a plug pin? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  26. 26.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a heat insulator? (a) an oven glove (b) a car windscreen (c) a skipping rope (d) a water tank
  28. 28.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) glass (d) plastic
  29. 29.True or false: a switch contact needs a waterproof material. (a) False (b) True
  30. 30.🔍 Which is the odd one out? (a) plastic (b) iron (c) clay pottery (d) cotton cloth
  31. 31.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  32. 32.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  33. 33.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.True or false: a yoga mat needs a flexible material. (a) False (b) True
  35. 35.🔍 Which is the odd one out? (a) steel (b) rubber (c) iron (d) brass
  36. 36.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.Which of these needs a waterproof material? (a) a magnifier lens (b) an umbrella cover (c) a tea flask lining (d) a spectacle lens
  38. 38.Which of these needs a flexible material? (a) a raincoat (b) an umbrella cover (c) a yoga mat (d) the core of a wire
  39. 39.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  40. 40.🧱 Which property matters most for a window pane? (a) transparent (b) flexible (c) waterproof (d) heat insulator

Answer key

  1. an insulator
  2. glass
  3. glass
  4. heat insulator
  5. cotton cloth
  6. flexible
  7. False
  8. steel
  9. waterproof
  10. plastic-coated cloth
  11. waterproof
  12. clay pottery
  13. wood or plastic
  14. False
  15. True
  16. False
  17. an insulator
  18. a car seat belt
  19. a boat hull
  20. False
  21. a window pane
  22. heat insulator
  23. electrical conductor
  24. an insulator
  25. True
  26. an insulator
  27. an oven glove
  28. brass
  29. False
  30. iron
  31. False
  32. flexible
  33. a conductor
  34. True
  35. rubber
  36. a conductor
  37. an umbrella cover
  38. a yoga mat
  39. waterproof
  40. transparent

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