← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 378 · 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 roof sheet? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  2. 2.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  4. 4.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  5. 5.Which of these needs a flexible material? (a) a cooking pot handle (b) a switch contact (c) a yoga mat (d) a window pane
  6. 6.True or false: a yoga mat needs a transparent material. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) glass (b) brass (c) plastic (d) rubber
  8. 8.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  9. 9.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which material is best for a window pane? (a) brick (b) steel (c) glass (d) wood
  11. 11.True or false: a raincoat needs a waterproof material. (a) False (b) True
  12. 12.Which of these needs a waterproof material? (a) a boat hull (b) a hair band (c) a cooking pot handle (d) a switch contact
  13. 13.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) glass (d) plastic
  14. 14.Which of these needs a flexible material? (a) a roof sheet (b) a cooking pot handle (c) a skipping rope (d) a tea flask lining
  15. 15.🔍 Which is the odd one out? (a) steel (b) iron (c) dry wood (d) brass
  16. 16.Which of these needs a transparent material? (a) a boat hull (b) a car windscreen (c) a water tank (d) a roof sheet
  17. 17.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  18. 18.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  19. 19.True or false: a boat hull needs a flexible material. (a) True (b) False
  20. 20.Which of these needs a heat insulator? (a) an oven glove (b) a car seat belt (c) a spectacle lens (d) an umbrella cover
  21. 21.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  23. 23.🔍 Which is the odd one out? (a) aluminium (b) brass (c) glass (d) steel
  24. 24.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  28. 28.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  30. 30.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.🔍 Which is the odd one out? (a) glass (b) plastic (c) rubber (d) graphite
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🔍 Which is the odd one out? (a) iron (b) copper (c) rubber (d) steel
  34. 34.True or false: an umbrella cover needs a heat insulator. (a) True (b) False
  35. 35.True or false: a boat hull needs a heat insulator. (a) False (b) True
  36. 36.🧱 Which property matters most for a raincoat? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  37. 37.Which of these needs a heat insulator? (a) a hair band (b) a plug pin (c) a window pane (d) a cooking pot handle
  38. 38.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  39. 39.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  40. 40.🔍 Which is the odd one out? (a) aluminium (b) graphite (c) steel (d) cotton cloth

Answer key

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

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