← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 183 · 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 skipping rope needs a flexible material. (a) True (b) False
  2. 2.Which of these needs a waterproof material? (a) a skipping rope (b) a tea flask lining (c) a boat hull (d) a switch contact
  3. 3.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  5. 5.🔍 Which is the odd one out? (a) brass (b) graphite (c) clay pottery (d) steel
  6. 6.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🔍 Which is the odd one out? (a) copper (b) glass (c) brass (d) iron
  8. 8.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  9. 9.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  10. 10.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  11. 11.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  14. 14.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  15. 15.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  16. 16.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  17. 17.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a plug pin (c) a car seat belt (d) a hair band
  18. 18.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  19. 19.Which of these needs a heat insulator? (a) a boat hull (b) an umbrella cover (c) a spectacle lens (d) a cooking pot handle
  20. 20.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) copper (d) glass
  21. 21.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  22. 22.True or false: a car seat belt needs a transparent material. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) clay pottery (d) dry wood
  24. 24.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  25. 25.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) brass (b) plastic (c) steel (d) copper
  27. 27.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  28. 28.Which of these needs a flexible material? (a) a window pane (b) the core of a wire (c) a yoga mat (d) a plug pin
  29. 29.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) plastic (d) glass
  30. 30.Which of these needs a transparent material? (a) a raincoat (b) a spectacle lens (c) a roof sheet (d) a cooking pot handle
  31. 31.Which of these needs a flexible material? (a) a skipping rope (b) an umbrella cover (c) a roof sheet (d) a magnifier lens
  32. 32.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  33. 33.🔍 Which is the odd one out? (a) glass (b) rubber (c) aluminium (d) dry wood
  34. 34.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  35. 35.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  36. 36.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  38. 38.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  39. 39.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) brass (d) copper

Answer key

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

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