← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 307 · 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 is the odd one out? (a) clay pottery (b) cotton cloth (c) dry wood (d) copper
  2. 2.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.True or false: an oven glove needs a heat insulator. (a) False (b) True
  4. 4.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  5. 5.True or false: a boat hull needs a transparent material. (a) True (b) False
  6. 6.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  7. 7.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs a flexible material? (a) a water tank (b) a hair band (c) an umbrella cover (d) a tea flask lining
  9. 9.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  10. 10.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  11. 11.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  12. 12.🔍 Which is the odd one out? (a) plastic (b) iron (c) brass (d) aluminium
  13. 13.Which of these needs a waterproof material? (a) a hair band (b) a roof sheet (c) a switch contact (d) a cooking pot handle
  14. 14.Which of these needs a flexible material? (a) a raincoat (b) a cooking pot handle (c) a skipping rope (d) a roof sheet
  15. 15.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.Which of these needs a transparent material? (a) a switch contact (b) a hair band (c) a car windscreen (d) a raincoat
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  19. 19.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  20. 20.Which of these needs a heat insulator? (a) a hair band (b) a car windscreen (c) an umbrella cover (d) an oven glove
  21. 21.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  22. 22.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  23. 23.🧱 Which property matters most for a water tank? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  24. 24.True or false: a hair band needs a waterproof material. (a) True (b) False
  25. 25.True or false: a boat hull needs an electrical conductor. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) glass (b) graphite (c) rubber (d) clay pottery
  27. 27.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  28. 28.🧱 Which property matters most for a window pane? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  29. 29.True or false: a skipping rope needs a heat insulator. (a) False (b) True
  30. 30.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  31. 31.Which of these needs a transparent material? (a) a hair band (b) a yoga mat (c) an oven glove (d) a magnifier lens
  32. 32.🔍 Which is the odd one out? (a) rubber (b) copper (c) aluminium (d) steel
  33. 33.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  35. 35.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  37. 37.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) cotton cloth (d) brass
  38. 38.🧱 Which property matters most for a car seat belt? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  39. 39.True or false: a yoga mat needs a flexible material. (a) False (b) True
  40. 40.True or false: a magnifier lens needs a waterproof material. (a) False (b) True

Answer key

  1. copper
  2. a conductor
  3. True
  4. waterproof
  5. False
  6. plastic-coated cloth
  7. a conductor
  8. a hair band
  9. transparent
  10. True
  11. waterproof
  12. plastic
  13. a roof sheet
  14. a skipping rope
  15. a conductor
  16. a car windscreen
  17. a conductor
  18. copper
  19. transparent
  20. an oven glove
  21. glass
  22. electrical conductor
  23. waterproof
  24. False
  25. False
  26. graphite
  27. electrical conductor
  28. transparent
  29. False
  30. False
  31. a magnifier lens
  32. rubber
  33. an insulator
  34. False
  35. a conductor
  36. transparent
  37. brass
  38. flexible
  39. True
  40. False

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