← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 794 · 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 copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  3. 3.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  4. 4.True or false: a window pane needs a transparent material. (a) True (b) False
  5. 5.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  8. 8.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a switch contact (c) a raincoat (d) a water tank
  9. 9.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  10. 10.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  11. 11.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  12. 12.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) aluminium (d) rubber
  13. 13.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  14. 14.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  15. 15.🧱 Which property matters most for a car windscreen? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  16. 16.Which of these needs a waterproof material? (a) the core of a wire (b) an umbrella cover (c) a hair band (d) a skipping rope
  17. 17.True or false: a boat hull needs a flexible material. (a) True (b) False
  18. 18.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  20. 20.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) plastic (d) brass
  22. 22.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a water tank (c) the core of a wire (d) a roof sheet
  26. 26.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) brass (b) steel (c) aluminium (d) clay pottery
  28. 28.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) clay pottery (d) plastic
  29. 29.True or false: a plug pin needs a waterproof material. (a) False (b) True
  30. 30.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  31. 31.Which of these needs a heat insulator? (a) a tea flask lining (b) the core of a wire (c) a yoga mat (d) an umbrella cover
  32. 32.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.Which of these needs an electrical conductor? (a) a boat hull (b) a window pane (c) a plug pin (d) a cooking pot handle
  35. 35.True or false: a boat hull needs a transparent material. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) graphite (b) glass (c) iron (d) brass
  37. 37.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a flexible material? (a) a car windscreen (b) a hair band (c) a tea flask lining (d) an umbrella cover
  39. 39.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  40. 40.🔍 Which is the odd one out? (a) iron (b) dry wood (c) copper (d) aluminium

Answer key

  1. a conductor
  2. glass
  3. heat insulator
  4. True
  5. False
  6. an insulator
  7. flexible
  8. a switch contact
  9. False
  10. steel
  11. waterproof
  12. aluminium
  13. plastic-coated cloth
  14. True
  15. transparent
  16. an umbrella cover
  17. False
  18. an insulator
  19. wood or plastic
  20. a conductor
  21. brass
  22. electrical conductor
  23. a conductor
  24. an insulator
  25. the core of a wire
  26. True
  27. clay pottery
  28. copper
  29. False
  30. True
  31. a tea flask lining
  32. an insulator
  33. an insulator
  34. a plug pin
  35. False
  36. glass
  37. an insulator
  38. a hair band
  39. electrical conductor
  40. dry wood

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