← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 163 · 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) iron (b) dry wood (c) aluminium (d) copper
  2. 2.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  3. 3.True or false: an oven glove needs a transparent material. (a) False (b) True
  4. 4.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  5. 5.Which of these needs a flexible material? (a) a tea flask lining (b) a car seat belt (c) a spectacle lens (d) a boat hull
  6. 6.🔍 Which is the odd one out? (a) glass (b) copper (c) cotton cloth (d) rubber
  7. 7.🔍 Which is the odd one out? (a) plastic (b) brass (c) clay pottery (d) rubber
  8. 8.🔍 Which is the odd one out? (a) iron (b) dry wood (c) plastic (d) rubber
  9. 9.True or false: a window pane needs a heat insulator. (a) False (b) True
  10. 10.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  11. 11.🧱 Which property matters most for a hair band? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  12. 12.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  13. 13.Which of these needs a flexible material? (a) an umbrella cover (b) a switch contact (c) a window pane (d) a skipping rope
  14. 14.🧱 Which property matters most for an oven glove? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  15. 15.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  17. 17.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  18. 18.Which of these needs a flexible material? (a) an oven glove (b) a hair band (c) a spectacle lens (d) a window pane
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) copper (c) iron (d) steel
  20. 20.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) rubber (d) glass
  21. 21.True or false: a hair band needs a waterproof material. (a) False (b) True
  22. 22.True or false: a yoga mat needs a flexible material. (a) False (b) True
  23. 23.True or false: a hair band needs a flexible material. (a) False (b) True
  24. 24.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which property matters most for a raincoat? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  26. 26.True or false: a boat hull needs a waterproof material. (a) True (b) False
  27. 27.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  29. 29.Which of these needs a transparent material? (a) a raincoat (b) a magnifier lens (c) a boat hull (d) a skipping rope
  30. 30.True or false: a cooking pot handle needs an electrical conductor. (a) True (b) False
  31. 31.Which of these needs a heat insulator? (a) an oven glove (b) a raincoat (c) a roof sheet (d) a car windscreen
  32. 32.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  35. 35.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  36. 36.Which of these needs a transparent material? (a) a car seat belt (b) a boat hull (c) a car windscreen (d) a yoga mat
  37. 37.True or false: the core of a wire needs a flexible material. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) plastic (d) steel
  39. 39.Which of these needs an electrical conductor? (a) an umbrella cover (b) a hair band (c) a cooking pot handle (d) the core of a wire
  40. 40.🧱 Which property matters most for a window pane? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent

Answer key

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

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