← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 926 · 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.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  2. 2.Which of these needs a flexible material? (a) a tea flask lining (b) a roof sheet (c) a skipping rope (d) a magnifier lens
  3. 3.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  4. 4.🔍 Which is the odd one out? (a) dry wood (b) glass (c) cotton cloth (d) iron
  5. 5.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.Which of these needs a transparent material? (a) a raincoat (b) a tea flask lining (c) a boat hull (d) a spectacle lens
  7. 7.Which of these needs a flexible material? (a) a window pane (b) a switch contact (c) a roof sheet (d) a yoga mat
  8. 8.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  9. 9.Which of these needs a heat insulator? (a) the core of a wire (b) a switch contact (c) an oven glove (d) a raincoat
  10. 10.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  11. 11.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  12. 12.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
  13. 13.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  14. 14.🔍 Which is the odd one out? (a) steel (b) cotton cloth (c) brass (d) aluminium
  15. 15.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  16. 16.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  17. 17.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  18. 18.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  19. 19.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  20. 20.Which of these needs an electrical conductor? (a) a magnifier lens (b) a window pane (c) a spectacle lens (d) the core of a wire
  21. 21.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  22. 22.True or false: a yoga mat needs a transparent material. (a) True (b) False
  23. 23.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  24. 24.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  27. 27.Which of these needs a flexible material? (a) a magnifier lens (b) a hair band (c) a water tank (d) a plug pin
  28. 28.🔍 Which is the odd one out? (a) copper (b) aluminium (c) graphite (d) glass
  29. 29.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  30. 30.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  31. 31.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  32. 32.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  33. 33.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  34. 34.True or false: an oven glove needs a heat insulator. (a) True (b) False
  35. 35.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  36. 36.🔍 Which is the odd one out? (a) glass (b) graphite (c) clay pottery (d) dry wood
  37. 37.Which of these needs a waterproof material? (a) a skipping rope (b) a hair band (c) an umbrella cover (d) a plug pin
  38. 38.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) clay pottery (d) copper
  39. 39.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) heat insulator (d) waterproof

Answer key

  1. steel
  2. a skipping rope
  3. plastic-coated cloth
  4. iron
  5. an insulator
  6. a spectacle lens
  7. a yoga mat
  8. copper
  9. an oven glove
  10. True
  11. electrical conductor
  12. flexible
  13. electrical conductor
  14. cotton cloth
  15. transparent
  16. transparent
  17. False
  18. True
  19. True
  20. the core of a wire
  21. False
  22. False
  23. flexible
  24. a conductor
  25. a conductor
  26. glass
  27. a hair band
  28. glass
  29. heat insulator
  30. heat insulator
  31. waterproof
  32. waterproof
  33. waterproof
  34. True
  35. wood or plastic
  36. graphite
  37. an umbrella cover
  38. copper
  39. an insulator
  40. flexible

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