← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 346 · 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 property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  2. 2.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  3. 3.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  4. 4.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) aluminium (d) iron
  6. 6.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  8. 8.Which of these needs an electrical conductor? (a) a hair band (b) the core of a wire (c) a cooking pot handle (d) a yoga mat
  9. 9.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  10. 10.Which of these needs an electrical conductor? (a) a roof sheet (b) a car seat belt (c) a plug pin (d) a raincoat
  11. 11.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.Which of these needs a heat insulator? (a) a cooking pot handle (b) a window pane (c) a roof sheet (d) a water tank
  13. 13.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) steel (d) copper
  14. 14.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  15. 15.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  16. 16.🔍 Which is the odd one out? (a) iron (b) steel (c) copper (d) rubber
  17. 17.True or false: a car seat belt needs an electrical conductor. (a) True (b) False
  18. 18.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.Which of these needs a waterproof material? (a) a plug pin (b) an umbrella cover (c) the core of a wire (d) a tea flask lining
  21. 21.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  22. 22.🧱 Which property matters most for a skipping rope? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  23. 23.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) aluminium (d) plastic
  24. 24.True or false: a yoga mat needs a transparent material. (a) False (b) True
  25. 25.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  26. 26.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  27. 27.Which of these needs a waterproof material? (a) the core of a wire (b) a raincoat (c) a cooking pot handle (d) a car windscreen
  28. 28.Which of these needs a waterproof material? (a) a hair band (b) a window pane (c) a skipping rope (d) a roof sheet
  29. 29.Which of these needs a transparent material? (a) an umbrella cover (b) a boat hull (c) a magnifier lens (d) a raincoat
  30. 30.🔍 Which is the odd one out? (a) copper (b) aluminium (c) steel (d) plastic
  31. 31.Which of these needs an electrical conductor? (a) a water tank (b) a boat hull (c) a switch contact (d) a skipping rope
  32. 32.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  33. 33.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🔍 Which is the odd one out? (a) rubber (b) graphite (c) clay pottery (d) plastic
  35. 35.True or false: a raincoat needs a heat insulator. (a) True (b) False
  36. 36.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  37. 37.True or false: a boat hull needs a waterproof material. (a) True (b) False
  38. 38.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  39. 39.True or false: the core of a wire needs a flexible material. (a) False (b) True
  40. 40.True or false: an umbrella cover needs a transparent material. (a) False (b) True

Answer key

  1. heat insulator
  2. glass
  3. heat insulator
  4. a conductor
  5. wood or plastic
  6. an insulator
  7. plastic-coated cloth
  8. the core of a wire
  9. copper
  10. a plug pin
  11. a conductor
  12. a cooking pot handle
  13. cotton cloth
  14. False
  15. flexible
  16. rubber
  17. False
  18. an insulator
  19. an insulator
  20. an umbrella cover
  21. waterproof
  22. flexible
  23. aluminium
  24. False
  25. heat insulator
  26. transparent
  27. a raincoat
  28. a roof sheet
  29. a magnifier lens
  30. plastic
  31. a switch contact
  32. waterproof
  33. an insulator
  34. graphite
  35. False
  36. waterproof
  37. True
  38. True
  39. False
  40. False

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