← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 321 · 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) dry wood (b) cotton cloth (c) copper (d) plastic
  2. 2.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  3. 3.True or false: an oven glove needs a heat insulator. (a) True (b) False
  4. 4.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🔍 Which is the odd one out? (a) plastic (b) glass (c) dry wood (d) aluminium
  7. 7.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a waterproof material? (a) a spectacle lens (b) a boat hull (c) a hair band (d) a car windscreen
  11. 11.True or false: a water tank needs a waterproof material. (a) False (b) True
  12. 12.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: a yoga mat needs a flexible material. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) graphite (b) glass (c) copper (d) steel
  15. 15.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  16. 16.Which of these needs a transparent material? (a) a hair band (b) a water tank (c) a car windscreen (d) a car seat belt
  17. 17.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  18. 18.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.True or false: a hair band needs a flexible material. (a) False (b) True
  20. 20.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  21. 21.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  22. 22.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  23. 23.True or false: a boat hull needs a waterproof material. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) plastic (b) rubber (c) brass (d) dry wood
  25. 25.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  27. 27.True or false: a car windscreen needs a transparent material. (a) False (b) True
  28. 28.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  29. 29.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  30. 30.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  31. 31.Which of these needs a heat insulator? (a) an umbrella cover (b) a raincoat (c) a cooking pot handle (d) a window pane
  32. 32.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  33. 33.🧱 Which property matters most for the core of a wire? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  34. 34.Which of these needs a flexible material? (a) a hair band (b) a plug pin (c) a roof sheet (d) the core of a wire
  35. 35.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) brass (b) plastic (c) graphite (d) steel
  37. 37.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  39. 39.Which of these needs a waterproof material? (a) a switch contact (b) a yoga mat (c) a magnifier lens (d) a raincoat
  40. 40.True or false: a plug pin needs a transparent material. (a) True (b) False

Answer key

  1. copper
  2. heat insulator
  3. True
  4. a conductor
  5. an insulator
  6. aluminium
  7. an insulator
  8. a conductor
  9. an insulator
  10. a boat hull
  11. True
  12. an insulator
  13. True
  14. glass
  15. True
  16. a car windscreen
  17. plastic-coated cloth
  18. a conductor
  19. True
  20. waterproof
  21. False
  22. copper
  23. True
  24. brass
  25. a conductor
  26. True
  27. True
  28. flexible
  29. steel
  30. waterproof
  31. a cooking pot handle
  32. glass
  33. electrical conductor
  34. a hair band
  35. True
  36. plastic
  37. a conductor
  38. heat insulator
  39. a raincoat
  40. False

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