← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 219 · 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 waterproof material? (a) the core of a wire (b) a roof sheet (c) a skipping rope (d) a cooking pot handle
  2. 2.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) steel (d) glass
  3. 3.Which of these needs a waterproof material? (a) a car seat belt (b) a spectacle lens (c) a raincoat (d) a cooking pot handle
  4. 4.🔍 Which is the odd one out? (a) aluminium (b) copper (c) steel (d) plastic
  5. 5.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) cotton cloth (d) glass
  6. 6.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  7. 7.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) brass (d) graphite
  8. 8.True or false: a raincoat needs a transparent material. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) brass (b) copper (c) rubber (d) graphite
  10. 10.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  11. 11.True or false: a switch contact needs a heat insulator. (a) False (b) True
  12. 12.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  14. 14.🧱 Which property matters most for a magnifier lens? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  15. 15.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) iron (d) copper
  16. 16.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  17. 17.True or false: a water tank needs a waterproof material. (a) True (b) False
  18. 18.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.True or false: a window pane needs a flexible material. (a) False (b) True
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.Which of these needs a flexible material? (a) a switch contact (b) a plug pin (c) a window pane (d) a yoga mat
  22. 22.True or false: a spectacle lens needs an electrical conductor. (a) False (b) True
  23. 23.🔍 Which is the odd one out? (a) glass (b) aluminium (c) steel (d) brass
  24. 24.🔍 Which is the odd one out? (a) glass (b) dry wood (c) rubber (d) graphite
  25. 25.🔍 Which is the odd one out? (a) copper (b) steel (c) graphite (d) dry wood
  26. 26.Which of these needs a waterproof material? (a) a skipping rope (b) an umbrella cover (c) the core of a wire (d) a window pane
  27. 27.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) plastic (d) iron
  29. 29.Which of these needs a transparent material? (a) a raincoat (b) a water tank (c) a spectacle lens (d) a boat hull
  30. 30.True or false: a spectacle lens needs a heat insulator. (a) False (b) True
  31. 31.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Which property matters most for a hair band? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  33. 33.Which of these needs a heat insulator? (a) a window pane (b) a spectacle lens (c) a water tank (d) a cooking pot handle
  34. 34.Which of these needs a waterproof material? (a) a switch contact (b) an oven glove (c) a tea flask lining (d) a water tank
  35. 35.True or false: a window pane needs a transparent material. (a) True (b) False
  36. 36.True or false: a yoga mat needs a flexible material. (a) False (b) True
  37. 37.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  38. 38.🧱 Which property matters most for an oven glove? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  39. 39.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  40. 40.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) flexible (d) transparent

Answer key

  1. a roof sheet
  2. steel
  3. a raincoat
  4. plastic
  5. aluminium
  6. glass
  7. cotton cloth
  8. False
  9. rubber
  10. steel
  11. False
  12. an insulator
  13. transparent
  14. transparent
  15. wood or plastic
  16. electrical conductor
  17. True
  18. an insulator
  19. False
  20. a conductor
  21. a yoga mat
  22. False
  23. glass
  24. graphite
  25. dry wood
  26. an umbrella cover
  27. True
  28. iron
  29. a spectacle lens
  30. False
  31. an insulator
  32. flexible
  33. a cooking pot handle
  34. a water tank
  35. True
  36. True
  37. copper
  38. heat insulator
  39. transparent
  40. waterproof

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