← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 97 · 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 heat insulator? (a) a raincoat (b) an umbrella cover (c) a switch contact (d) a tea flask lining
  2. 2.True or false: a hair band needs a heat insulator. (a) True (b) False
  3. 3.🧱 Which property matters most for a hair band? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  4. 4.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  5. 5.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  6. 6.True or false: a hair band needs a flexible material. (a) False (b) True
  7. 7.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.Which of these needs a transparent material? (a) a hair band (b) a switch contact (c) a window pane (d) a yoga mat
  9. 9.Which of these needs an electrical conductor? (a) a car windscreen (b) a window pane (c) a car seat belt (d) the core of a wire
  10. 10.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) plastic (d) cotton cloth
  14. 14.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  15. 15.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.Which of these needs a transparent material? (a) a magnifier lens (b) a yoga mat (c) a switch contact (d) an umbrella cover
  17. 17.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  18. 18.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  19. 19.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  22. 22.Which of these needs a flexible material? (a) an umbrella cover (b) a yoga mat (c) a roof sheet (d) the core of a wire
  23. 23.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.Which of these needs a waterproof material? (a) a magnifier lens (b) a yoga mat (c) a roof sheet (d) a switch contact
  26. 26.Which of these needs a transparent material? (a) a tea flask lining (b) a raincoat (c) a car windscreen (d) a skipping rope
  27. 27.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  28. 28.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  29. 29.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) plastic (d) glass
  31. 31.🔍 Which is the odd one out? (a) rubber (b) brass (c) glass (d) cotton cloth
  32. 32.🧱 Which property matters most for a boat hull? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  33. 33.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) steel (d) glass
  34. 34.Which of these needs a flexible material? (a) a spectacle lens (b) a plug pin (c) a car seat belt (d) a cooking pot handle
  35. 35.🔍 Which is the odd one out? (a) iron (b) glass (c) aluminium (d) steel
  36. 36.Which of these needs an electrical conductor? (a) a roof sheet (b) a boat hull (c) a plug pin (d) a skipping rope
  37. 37.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  38. 38.🧱 Which property matters most for a skipping rope? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  39. 39.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. a tea flask lining
  2. False
  3. flexible
  4. copper
  5. heat insulator
  6. True
  7. a conductor
  8. a window pane
  9. the core of a wire
  10. a conductor
  11. an insulator
  12. a conductor
  13. aluminium
  14. False
  15. an insulator
  16. a magnifier lens
  17. False
  18. plastic-coated cloth
  19. False
  20. an insulator
  21. heat insulator
  22. a yoga mat
  23. a conductor
  24. an insulator
  25. a roof sheet
  26. a car windscreen
  27. waterproof
  28. True
  29. True
  30. copper
  31. brass
  32. waterproof
  33. steel
  34. a car seat belt
  35. glass
  36. a plug pin
  37. waterproof
  38. flexible
  39. a conductor
  40. an insulator

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