← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 280 · 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.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🔍 Which is the odd one out? (a) graphite (b) iron (c) copper (d) plastic
  3. 3.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.Which of these needs an electrical conductor? (a) a spectacle lens (b) a raincoat (c) a yoga mat (d) the core of a wire
  5. 5.🔍 Which is the odd one out? (a) iron (b) aluminium (c) dry wood (d) steel
  6. 6.True or false: an oven glove needs a transparent material. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) dry wood (d) plastic
  8. 8.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🔍 Which is the odd one out? (a) iron (b) graphite (c) steel (d) glass
  11. 11.True or false: the core of a wire needs a flexible material. (a) True (b) False
  12. 12.Which of these needs an electrical conductor? (a) a car seat belt (b) a car windscreen (c) a plug pin (d) a magnifier lens
  13. 13.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  14. 14.Which of these needs a waterproof material? (a) a roof sheet (b) a window pane (c) a tea flask lining (d) a car seat belt
  15. 15.Which of these needs a transparent material? (a) a spectacle lens (b) an oven glove (c) the core of a wire (d) a water tank
  16. 16.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  17. 17.True or false: a skipping rope needs a flexible material. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) copper (b) rubber (c) iron (d) aluminium
  19. 19.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  20. 20.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  21. 21.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  24. 24.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  25. 25.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  26. 26.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  28. 28.Which of these needs a heat insulator? (a) an oven glove (b) a water tank (c) a hair band (d) a yoga mat
  29. 29.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  30. 30.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  31. 31.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.Which of these needs a flexible material? (a) a cooking pot handle (b) a magnifier lens (c) a car seat belt (d) an umbrella cover
  33. 33.🔍 Which is the odd one out? (a) brass (b) steel (c) graphite (d) cotton cloth
  34. 34.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  36. 36.Which of these needs a heat insulator? (a) a tea flask lining (b) a car windscreen (c) a raincoat (d) a skipping rope
  37. 37.Which of these needs a transparent material? (a) a skipping rope (b) a boat hull (c) a water tank (d) a window pane
  38. 38.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  39. 39.True or false: a tea flask lining needs a flexible material. (a) True (b) False
  40. 40.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) waterproof (d) electrical conductor

Answer key

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

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