← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 209 · 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 of these needs a heat insulator? (a) a plug pin (b) a skipping rope (c) a window pane (d) an oven glove
  2. 2.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  3. 3.Which of these needs a waterproof material? (a) an oven glove (b) an umbrella cover (c) a spectacle lens (d) a window pane
  4. 4.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.🔍 Which is the odd one out? (a) iron (b) copper (c) glass (d) aluminium
  6. 6.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  7. 7.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  8. 8.🧱 Which property matters most for a hair band? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  9. 9.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  10. 10.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  11. 11.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  12. 12.Which of these needs a waterproof material? (a) a spectacle lens (b) a switch contact (c) a hair band (d) a raincoat
  13. 13.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.Which of these needs a heat insulator? (a) a car seat belt (b) a cooking pot handle (c) a hair band (d) a water tank
  15. 15.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) copper (b) graphite (c) dry wood (d) aluminium
  17. 17.True or false: the core of a wire needs a transparent material. (a) False (b) True
  18. 18.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) plastic (b) copper (c) rubber (d) cotton cloth
  20. 20.Which of these needs a flexible material? (a) a spectacle lens (b) an umbrella cover (c) a skipping rope (d) a magnifier lens
  21. 21.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  22. 22.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  23. 23.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  24. 24.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  25. 25.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) cotton cloth (d) plastic
  27. 27.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  28. 28.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  29. 29.Which of these needs a flexible material? (a) a magnifier lens (b) a roof sheet (c) a plug pin (d) a car seat belt
  30. 30.True or false: a hair band needs an electrical conductor. (a) True (b) False
  31. 31.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  32. 32.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.Which of these needs a transparent material? (a) a yoga mat (b) a window pane (c) a hair band (d) the core of a wire
  34. 34.True or false: a boat hull needs a waterproof material. (a) True (b) False
  35. 35.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  37. 37.True or false: a hair band needs a flexible material. (a) False (b) True
  38. 38.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  39. 39.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  40. 40.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False

Answer key

  1. an oven glove
  2. flexible
  3. an umbrella cover
  4. a conductor
  5. glass
  6. True
  7. flexible
  8. flexible
  9. electrical conductor
  10. transparent
  11. waterproof
  12. a raincoat
  13. a conductor
  14. a cooking pot handle
  15. an insulator
  16. dry wood
  17. False
  18. a conductor
  19. copper
  20. a skipping rope
  21. True
  22. steel
  23. waterproof
  24. heat insulator
  25. a conductor
  26. graphite
  27. copper
  28. glass
  29. a car seat belt
  30. False
  31. waterproof
  32. an insulator
  33. a window pane
  34. True
  35. an insulator
  36. electrical conductor
  37. True
  38. waterproof
  39. plastic-coated cloth
  40. False

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