← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 644 · 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 glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.Which of these needs a transparent material? (a) a switch contact (b) a raincoat (c) a magnifier lens (d) a skipping rope
  4. 4.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  5. 5.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🔍 Which is the odd one out? (a) copper (b) iron (c) plastic (d) steel
  7. 7.True or false: a boat hull needs a waterproof material. (a) False (b) True
  8. 8.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  9. 9.Which of these needs an electrical conductor? (a) a roof sheet (b) a cooking pot handle (c) the core of a wire (d) a raincoat
  10. 10.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  11. 11.🔍 Which is the odd one out? (a) graphite (b) rubber (c) glass (d) plastic
  12. 12.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  13. 13.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  14. 14.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  15. 15.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  17. 17.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  18. 18.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  19. 19.True or false: a spectacle lens needs a flexible material. (a) False (b) True
  20. 20.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  23. 23.True or false: a plug pin needs a flexible material. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) brass (b) graphite (c) glass (d) iron
  25. 25.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  26. 26.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) steel (d) clay pottery
  27. 27.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) brass (d) cotton cloth
  29. 29.Which of these needs a heat insulator? (a) a raincoat (b) an oven glove (c) a water tank (d) a yoga mat
  30. 30.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  31. 31.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  33. 33.Which of these needs a heat insulator? (a) a cooking pot handle (b) a car windscreen (c) a plug pin (d) a roof sheet
  34. 34.Which of these needs a waterproof material? (a) a plug pin (b) a raincoat (c) a magnifier lens (d) a cooking pot handle
  35. 35.🔍 Which is the odd one out? (a) rubber (b) steel (c) aluminium (d) brass
  36. 36.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) iron (d) brass
  38. 38.True or false: a window pane needs a transparent material. (a) True (b) False
  39. 39.Which of these needs a transparent material? (a) a plug pin (b) a raincoat (c) a skipping rope (d) a window pane
  40. 40.True or false: an oven glove needs an electrical conductor. (a) False (b) True

Answer key

  1. an insulator
  2. a conductor
  3. a magnifier lens
  4. False
  5. a conductor
  6. plastic
  7. True
  8. True
  9. the core of a wire
  10. glass
  11. graphite
  12. True
  13. waterproof
  14. transparent
  15. an insulator
  16. waterproof
  17. plastic-coated cloth
  18. waterproof
  19. False
  20. an insulator
  21. an insulator
  22. electrical conductor
  23. False
  24. glass
  25. flexible
  26. steel
  27. steel
  28. cotton cloth
  29. an oven glove
  30. waterproof
  31. an insulator
  32. waterproof
  33. a cooking pot handle
  34. a raincoat
  35. rubber
  36. False
  37. clay pottery
  38. True
  39. a window pane
  40. False

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