← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 427 · 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 tea flask lining needs a waterproof material. (a) True (b) False
  2. 2.Which of these needs a waterproof material? (a) an umbrella cover (b) a hair band (c) a tea flask lining (d) a magnifier lens
  3. 3.Which of these needs a waterproof material? (a) a hair band (b) a car seat belt (c) a raincoat (d) a spectacle lens
  4. 4.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  5. 5.🧱 Which property matters most for the core of a wire? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  6. 6.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs an electrical conductor? (a) an oven glove (b) a magnifier lens (c) a raincoat (d) a switch contact
  8. 8.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  9. 9.True or false: an oven glove needs a heat insulator. (a) False (b) True
  10. 10.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  11. 11.🔍 Which is the odd one out? (a) brass (b) copper (c) rubber (d) aluminium
  12. 12.True or false: a car seat belt needs a flexible material. (a) False (b) True
  13. 13.🔍 Which is the odd one out? (a) copper (b) dry wood (c) graphite (d) aluminium
  14. 14.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  15. 15.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  16. 16.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.Which of these needs a flexible material? (a) a cooking pot handle (b) an oven glove (c) a car windscreen (d) a hair band
  18. 18.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) cotton cloth (d) brass
  19. 19.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.True or false: a roof sheet needs a transparent material. (a) True (b) False
  21. 21.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  22. 22.Which of these needs a flexible material? (a) a switch contact (b) the core of a wire (c) a skipping rope (d) a window pane
  23. 23.Which of these needs a flexible material? (a) a plug pin (b) a boat hull (c) a switch contact (d) a yoga mat
  24. 24.Which of these needs a transparent material? (a) the core of a wire (b) a roof sheet (c) a boat hull (d) a window pane
  25. 25.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  26. 26.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) brass (d) aluminium
  27. 27.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) plastic (b) graphite (c) glass (d) rubber
  29. 29.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  30. 30.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  31. 31.🔍 Which is the odd one out? (a) copper (b) brass (c) aluminium (d) plastic
  32. 32.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  33. 33.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  34. 34.Which of these needs an electrical conductor? (a) a water tank (b) the core of a wire (c) a skipping rope (d) a yoga mat
  35. 35.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  37. 37.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  38. 38.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) plastic (d) dry wood
  39. 39.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  40. 40.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. False
  2. an umbrella cover
  3. a raincoat
  4. heat insulator
  5. electrical conductor
  6. a conductor
  7. a switch contact
  8. wood or plastic
  9. True
  10. glass
  11. rubber
  12. True
  13. dry wood
  14. copper
  15. plastic-coated cloth
  16. an insulator
  17. a hair band
  18. brass
  19. a conductor
  20. False
  21. heat insulator
  22. a skipping rope
  23. a yoga mat
  24. a window pane
  25. flexible
  26. clay pottery
  27. True
  28. graphite
  29. waterproof
  30. steel
  31. plastic
  32. False
  33. True
  34. the core of a wire
  35. an insulator
  36. waterproof
  37. False
  38. aluminium
  39. transparent
  40. a conductor

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