← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 662 · 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 transparent material? (a) a hair band (b) a switch contact (c) a window pane (d) the core of a wire
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  5. 5.True or false: a car seat belt needs a flexible material. (a) False (b) True
  6. 6.True or false: a skipping rope needs a heat insulator. (a) False (b) True
  7. 7.Which of these needs a transparent material? (a) a raincoat (b) a magnifier lens (c) a roof sheet (d) an oven glove
  8. 8.Which of these needs a heat insulator? (a) the core of a wire (b) an oven glove (c) an umbrella cover (d) a roof sheet
  9. 9.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  10. 10.Which of these needs a transparent material? (a) a yoga mat (b) a car seat belt (c) a spectacle lens (d) a tea flask lining
  11. 11.🧱 Which property matters most for the core of a wire? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  12. 12.True or false: a yoga mat needs a flexible material. (a) False (b) True
  13. 13.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🔍 Which is the odd one out? (a) rubber (b) glass (c) iron (d) plastic
  15. 15.🧱 Which property matters most for a car windscreen? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  16. 16.🔍 Which is the odd one out? (a) glass (b) plastic (c) dry wood (d) brass
  17. 17.🔍 Which is the odd one out? (a) glass (b) dry wood (c) plastic (d) graphite
  18. 18.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  19. 19.🔍 Which is the odd one out? (a) graphite (b) steel (c) brass (d) glass
  20. 20.True or false: a switch contact needs a flexible material. (a) False (b) True
  21. 21.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.Which of these needs a flexible material? (a) a skipping rope (b) a boat hull (c) the core of a wire (d) a raincoat
  23. 23.🔍 Which is the odd one out? (a) plastic (b) brass (c) graphite (d) aluminium
  24. 24.🧱 Which property matters most for a spectacle lens? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  25. 25.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  26. 26.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  27. 27.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  28. 28.Which of these needs an electrical conductor? (a) a spectacle lens (b) a switch contact (c) a roof sheet (d) a cooking pot handle
  29. 29.Which of these needs a heat insulator? (a) a plug pin (b) a tea flask lining (c) a yoga mat (d) a spectacle lens
  30. 30.🧱 Which material is best for a window pane? (a) glass (b) steel (c) wood (d) brick
  31. 31.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) iron (d) brass
  32. 32.True or false: the core of a wire needs a waterproof material. (a) True (b) False
  33. 33.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  35. 35.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  36. 36.Which of these needs a waterproof material? (a) a switch contact (b) a skipping rope (c) a cooking pot handle (d) an umbrella cover
  37. 37.Which of these needs an electrical conductor? (a) a roof sheet (b) a plug pin (c) a car windscreen (d) a water tank
  38. 38.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) plastic (d) aluminium
  39. 39.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) paper (d) cotton wool
  40. 40.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor

Answer key

  1. a window pane
  2. a conductor
  3. a conductor
  4. wood or plastic
  5. True
  6. False
  7. a magnifier lens
  8. an oven glove
  9. copper
  10. a spectacle lens
  11. electrical conductor
  12. True
  13. an insulator
  14. iron
  15. transparent
  16. brass
  17. graphite
  18. transparent
  19. glass
  20. False
  21. an insulator
  22. a skipping rope
  23. plastic
  24. transparent
  25. steel
  26. transparent
  27. False
  28. a switch contact
  29. a tea flask lining
  30. glass
  31. dry wood
  32. False
  33. an insulator
  34. waterproof
  35. waterproof
  36. an umbrella cover
  37. a plug pin
  38. aluminium
  39. plastic-coated cloth
  40. waterproof

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