← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 514 · 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.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  2. 2.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  3. 3.True or false: a water tank needs an electrical conductor. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) graphite (d) plastic
  5. 5.🧱 Which property matters most for an umbrella cover? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  6. 6.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  7. 7.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) copper (d) iron
  8. 8.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  9. 9.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  11. 11.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) rubber (d) aluminium
  12. 12.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) iron (d) clay pottery
  13. 13.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  14. 14.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  15. 15.Which of these needs a transparent material? (a) a tea flask lining (b) a hair band (c) a car windscreen (d) the core of a wire
  16. 16.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  17. 17.Which of these needs a flexible material? (a) a water tank (b) a magnifier lens (c) a car seat belt (d) an oven glove
  18. 18.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  19. 19.🔍 Which is the odd one out? (a) glass (b) dry wood (c) copper (d) cotton cloth
  20. 20.Which of these needs a transparent material? (a) the core of a wire (b) a yoga mat (c) a magnifier lens (d) a roof sheet
  21. 21.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  23. 23.🔍 Which is the odd one out? (a) steel (b) brass (c) dry wood (d) graphite
  24. 24.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  25. 25.True or false: a window pane needs a transparent material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) rubber (b) copper (c) graphite (d) aluminium
  27. 27.🔍 Which is the odd one out? (a) glass (b) steel (c) rubber (d) cotton cloth
  28. 28.Which of these needs a waterproof material? (a) a spectacle lens (b) an umbrella cover (c) a hair band (d) a car seat belt
  29. 29.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  31. 31.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.True or false: a raincoat needs an electrical conductor. (a) True (b) False
  35. 35.Which of these needs a waterproof material? (a) a plug pin (b) a skipping rope (c) a car seat belt (d) a boat hull
  36. 36.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  37. 37.Which of these needs a heat insulator? (a) a hair band (b) a yoga mat (c) a switch contact (d) a tea flask lining
  38. 38.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  39. 39.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  40. 40.Which of these needs an electrical conductor? (a) a roof sheet (b) a boat hull (c) a car windscreen (d) a switch contact

Answer key

  1. True
  2. flexible
  3. False
  4. graphite
  5. waterproof
  6. flexible
  7. cotton cloth
  8. waterproof
  9. a conductor
  10. steel
  11. aluminium
  12. iron
  13. electrical conductor
  14. wood or plastic
  15. a car windscreen
  16. False
  17. a car seat belt
  18. electrical conductor
  19. copper
  20. a magnifier lens
  21. an insulator
  22. plastic-coated cloth
  23. dry wood
  24. True
  25. True
  26. rubber
  27. steel
  28. an umbrella cover
  29. an insulator
  30. flexible
  31. an insulator
  32. a conductor
  33. an insulator
  34. False
  35. a boat hull
  36. glass
  37. a tea flask lining
  38. copper
  39. heat insulator
  40. a switch contact

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