← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 259 · 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 material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  2. 2.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  3. 3.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  4. 4.🔍 Which is the odd one out? (a) graphite (b) plastic (c) steel (d) brass
  5. 5.True or false: a hair band needs a heat insulator. (a) True (b) False
  6. 6.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  9. 9.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  10. 10.True or false: a plug pin needs a flexible material. (a) False (b) True
  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 car windscreen (b) a plug pin (c) an umbrella cover (d) a yoga mat
  13. 13.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) copper (d) plastic
  14. 14.🔍 Which is the odd one out? (a) glass (b) aluminium (c) rubber (d) plastic
  15. 15.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  16. 16.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  17. 17.Which of these needs an electrical conductor? (a) a water tank (b) a hair band (c) a switch contact (d) a boat hull
  18. 18.Which of these needs a flexible material? (a) a yoga mat (b) a cooking pot handle (c) an umbrella cover (d) a tea flask lining
  19. 19.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a water tank? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  21. 21.Which of these needs a heat insulator? (a) a tea flask lining (b) a plug pin (c) a hair band (d) a car windscreen
  22. 22.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) graphite (d) glass
  23. 23.🔍 Which is the odd one out? (a) plastic (b) rubber (c) brass (d) cotton cloth
  24. 24.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which property matters most for a raincoat? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  26. 26.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) aluminium (d) copper
  27. 27.Which of these needs a transparent material? (a) a spectacle lens (b) a switch contact (c) an umbrella cover (d) a raincoat
  28. 28.🔍 Which is the odd one out? (a) copper (b) brass (c) steel (d) cotton cloth
  29. 29.True or false: a hair band needs an electrical conductor. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) iron (b) graphite (c) clay pottery (d) brass
  31. 31.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  32. 32.True or false: a boat hull needs a waterproof material. (a) False (b) True
  33. 33.Which of these needs a flexible material? (a) an oven glove (b) a water tank (c) a hair band (d) an umbrella cover
  34. 34.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  35. 35.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  36. 36.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  38. 38.🔍 Which is the odd one out? (a) iron (b) plastic (c) glass (d) rubber
  39. 39.Which of these needs a waterproof material? (a) a car seat belt (b) a roof sheet (c) a plug pin (d) a skipping rope
  40. 40.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent

Answer key

  1. steel
  2. heat insulator
  3. copper
  4. plastic
  5. False
  6. a conductor
  7. an insulator
  8. wood or plastic
  9. flexible
  10. False
  11. True
  12. an umbrella cover
  13. copper
  14. aluminium
  15. electrical conductor
  16. plastic-coated cloth
  17. a switch contact
  18. a yoga mat
  19. a conductor
  20. waterproof
  21. a tea flask lining
  22. graphite
  23. brass
  24. a conductor
  25. waterproof
  26. dry wood
  27. a spectacle lens
  28. cotton cloth
  29. False
  30. clay pottery
  31. True
  32. True
  33. a hair band
  34. electrical conductor
  35. heat insulator
  36. an insulator
  37. transparent
  38. iron
  39. a roof sheet
  40. heat insulator

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