← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 152 · 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 brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🔍 Which is the odd one out? (a) plastic (b) rubber (c) dry wood (d) brass
  3. 3.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  4. 4.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  5. 5.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) glass (d) plastic
  6. 6.Which of these needs a waterproof material? (a) a raincoat (b) a window pane (c) the core of a wire (d) a yoga mat
  7. 7.Which of these needs an electrical conductor? (a) a magnifier lens (b) a spectacle lens (c) an umbrella cover (d) the core of a wire
  8. 8.Which of these needs a flexible material? (a) a roof sheet (b) a water tank (c) a skipping rope (d) an umbrella cover
  9. 9.🧱 Which property matters most for a car seat belt? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  10. 10.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.True or false: a car seat belt needs a flexible material. (a) False (b) True
  12. 12.True or false: a window pane needs a transparent material. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) aluminium (d) clay pottery
  14. 14.True or false: a spectacle lens needs a waterproof material. (a) True (b) False
  15. 15.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  16. 16.Which of these needs an electrical conductor? (a) a cooking pot handle (b) an umbrella cover (c) a plug pin (d) a magnifier lens
  17. 17.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  18. 18.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) graphite (d) plastic
  20. 20.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  22. 22.Which of these needs a heat insulator? (a) a water tank (b) a switch contact (c) a magnifier lens (d) an oven glove
  23. 23.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  24. 24.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  25. 25.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  26. 26.True or false: a hair band needs a transparent material. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) copper (b) glass (c) aluminium (d) steel
  28. 28.🧱 Which property matters most for a boat hull? (a) waterproof (b) flexible (c) transparent (d) heat insulator
  29. 29.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  30. 30.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  31. 31.Which of these needs a transparent material? (a) an umbrella cover (b) an oven glove (c) a water tank (d) a spectacle lens
  32. 32.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🔍 Which is the odd one out? (a) glass (b) dry wood (c) copper (d) plastic
  34. 34.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  35. 35.True or false: a boat hull needs a waterproof material. (a) False (b) True
  36. 36.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  38. 38.🧱 Which property matters most for a window pane? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  39. 39.True or false: a car windscreen needs a transparent material. (a) True (b) False
  40. 40.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator

Answer key

  1. a conductor
  2. brass
  3. True
  4. copper
  5. steel
  6. a raincoat
  7. the core of a wire
  8. a skipping rope
  9. flexible
  10. an insulator
  11. True
  12. True
  13. aluminium
  14. False
  15. heat insulator
  16. a plug pin
  17. glass
  18. transparent
  19. graphite
  20. a conductor
  21. False
  22. an oven glove
  23. waterproof
  24. plastic-coated cloth
  25. True
  26. False
  27. glass
  28. waterproof
  29. electrical conductor
  30. False
  31. a spectacle lens
  32. an insulator
  33. copper
  34. heat insulator
  35. True
  36. an insulator
  37. wood or plastic
  38. transparent
  39. True
  40. electrical conductor

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