← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 510 · 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 switch contact? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  2. 2.🔍 Which is the odd one out? (a) aluminium (b) copper (c) graphite (d) glass
  3. 3.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  4. 4.🔍 Which is the odd one out? (a) rubber (b) graphite (c) copper (d) steel
  5. 5.🧱 Which property matters most for the core of a wire? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  6. 6.Which of these needs a transparent material? (a) an oven glove (b) a boat hull (c) a water tank (d) a car windscreen
  7. 7.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) cotton cloth (d) plastic
  8. 8.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) clay pottery (d) aluminium
  9. 9.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  11. 11.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: a skipping rope needs a transparent material. (a) True (b) False
  14. 14.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🔍 Which is the odd one out? (a) copper (b) iron (c) dry wood (d) brass
  16. 16.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  19. 19.True or false: a yoga mat needs a flexible material. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) plastic (b) copper (c) brass (d) aluminium
  21. 21.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  22. 22.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.Which of these needs a waterproof material? (a) a window pane (b) a tea flask lining (c) a cooking pot handle (d) a water tank
  24. 24.🔍 Which is the odd one out? (a) glass (b) steel (c) dry wood (d) cotton cloth
  25. 25.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.True or false: a water tank needs a waterproof material. (a) True (b) False
  28. 28.True or false: a switch contact needs a waterproof material. (a) False (b) True
  29. 29.Which of these needs a flexible material? (a) a switch contact (b) a hair band (c) a cooking pot handle (d) a raincoat
  30. 30.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  31. 31.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  32. 32.True or false: a cooking pot handle needs a transparent material. (a) False (b) True
  33. 33.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  35. 35.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  36. 36.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🔍 Which is the odd one out? (a) steel (b) graphite (c) iron (d) clay pottery
  38. 38.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  39. 39.True or false: a water tank needs an electrical conductor. (a) False (b) True
  40. 40.True or false: a car seat belt needs a flexible material. (a) False (b) True

Answer key

  1. electrical conductor
  2. glass
  3. wood or plastic
  4. rubber
  5. electrical conductor
  6. a car windscreen
  7. iron
  8. aluminium
  9. an insulator
  10. copper
  11. heat insulator
  12. an insulator
  13. False
  14. an insulator
  15. dry wood
  16. True
  17. a conductor
  18. plastic-coated cloth
  19. True
  20. plastic
  21. waterproof
  22. a conductor
  23. a water tank
  24. steel
  25. an insulator
  26. a conductor
  27. True
  28. False
  29. a hair band
  30. heat insulator
  31. waterproof
  32. False
  33. a conductor
  34. flexible
  35. electrical conductor
  36. a conductor
  37. clay pottery
  38. steel
  39. False
  40. True

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