← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 444 · 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 steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.Which of these needs a transparent material? (a) a hair band (b) a tea flask lining (c) a magnifier lens (d) a roof sheet
  3. 3.🧱 Which property matters most for a spectacle lens? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  4. 4.Which of these needs a heat insulator? (a) a window pane (b) a spectacle lens (c) a tea flask lining (d) a plug pin
  5. 5.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  6. 6.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🔍 Which is the odd one out? (a) brass (b) aluminium (c) copper (d) plastic
  8. 8.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) dry wood (d) glass
  9. 9.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  10. 10.True or false: a switch contact needs a flexible material. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) steel (d) brass
  12. 12.Which of these needs an electrical conductor? (a) a car seat belt (b) a skipping rope (c) the core of a wire (d) a tea flask lining
  13. 13.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) steel (d) cotton cloth
  14. 14.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  15. 15.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) steel (d) copper
  16. 16.True or false: a car windscreen needs an electrical conductor. (a) False (b) True
  17. 17.Which of these needs a waterproof material? (a) a boat hull (b) a car windscreen (c) a window pane (d) a spectacle lens
  18. 18.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  19. 19.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) steel (d) glass
  20. 20.🔍 Which is the odd one out? (a) copper (b) glass (c) brass (d) steel
  21. 21.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  23. 23.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) copper (d) aluminium
  25. 25.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  27. 27.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  28. 28.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  30. 30.🧱 Which property matters most for a hair band? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  31. 31.True or false: an oven glove needs a waterproof material. (a) True (b) False
  32. 32.Which of these needs an electrical conductor? (a) a window pane (b) a switch contact (c) a raincoat (d) a magnifier lens
  33. 33.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) rubber (d) brass
  35. 35.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  36. 36.True or false: a hair band needs a waterproof material. (a) True (b) False
  37. 37.True or false: a car windscreen needs a transparent material. (a) True (b) False
  38. 38.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  39. 39.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.Which of these needs a waterproof material? (a) a yoga mat (b) a spectacle lens (c) a raincoat (d) a cooking pot handle

Answer key

  1. a conductor
  2. a magnifier lens
  3. transparent
  4. a tea flask lining
  5. False
  6. a conductor
  7. plastic
  8. aluminium
  9. True
  10. False
  11. dry wood
  12. the core of a wire
  13. steel
  14. glass
  15. rubber
  16. False
  17. a boat hull
  18. wood or plastic
  19. steel
  20. glass
  21. an insulator
  22. flexible
  23. False
  24. cotton cloth
  25. a conductor
  26. heat insulator
  27. waterproof
  28. a conductor
  29. copper
  30. flexible
  31. False
  32. a switch contact
  33. a conductor
  34. brass
  35. flexible
  36. False
  37. True
  38. transparent
  39. an insulator
  40. a raincoat

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