← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 127 · 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 property matters most for a hair band? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  2. 2.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  3. 3.Which of these needs a heat insulator? (a) a boat hull (b) a tea flask lining (c) a yoga mat (d) a car windscreen
  4. 4.Which of these needs an electrical conductor? (a) a magnifier lens (b) a yoga mat (c) a plug pin (d) an oven glove
  5. 5.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) iron (d) glass
  6. 6.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.Which of these needs a flexible material? (a) a switch contact (b) a water tank (c) a car windscreen (d) a skipping rope
  8. 8.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  9. 9.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) iron (d) aluminium
  10. 10.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  11. 11.🧱 Which property matters most for a skipping rope? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  12. 12.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  13. 13.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  15. 15.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  16. 16.True or false: a skipping rope needs a flexible material. (a) False (b) True
  17. 17.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  18. 18.Which of these needs an electrical conductor? (a) the core of a wire (b) a water tank (c) a cooking pot handle (d) a window pane
  19. 19.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  20. 20.🔍 Which is the odd one out? (a) plastic (b) steel (c) cotton cloth (d) clay pottery
  21. 21.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  24. 24.🔍 Which is the odd one out? (a) brass (b) copper (c) dry wood (d) iron
  25. 25.Which of these needs a waterproof material? (a) a magnifier lens (b) a yoga mat (c) a cooking pot handle (d) a roof sheet
  26. 26.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  27. 27.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) brass (b) aluminium (c) plastic (d) iron
  29. 29.True or false: the core of a wire needs a transparent material. (a) False (b) True
  30. 30.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  31. 31.🧱 Which property matters most for a spectacle lens? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  32. 32.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  33. 33.Which of these needs a flexible material? (a) a spectacle lens (b) a yoga mat (c) a boat hull (d) an oven glove
  34. 34.🧱 Which property matters most for a car windscreen? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  35. 35.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) steel (d) rubber
  39. 39.Which of these needs a flexible material? (a) a magnifier lens (b) an umbrella cover (c) a car seat belt (d) a window pane
  40. 40.Which of these needs a heat insulator? (a) a switch contact (b) a raincoat (c) a cooking pot handle (d) a magnifier lens

Answer key

  1. flexible
  2. True
  3. a tea flask lining
  4. a plug pin
  5. iron
  6. a conductor
  7. a skipping rope
  8. electrical conductor
  9. cotton cloth
  10. transparent
  11. flexible
  12. waterproof
  13. an insulator
  14. False
  15. flexible
  16. True
  17. plastic-coated cloth
  18. the core of a wire
  19. waterproof
  20. steel
  21. an insulator
  22. a conductor
  23. heat insulator
  24. dry wood
  25. a roof sheet
  26. copper
  27. True
  28. plastic
  29. False
  30. True
  31. transparent
  32. waterproof
  33. a yoga mat
  34. transparent
  35. an insulator
  36. a conductor
  37. a conductor
  38. steel
  39. a car seat belt
  40. a cooking pot handle

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