← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 814 · 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 dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  3. 3.Which of these needs a transparent material? (a) a raincoat (b) the core of a wire (c) a magnifier lens (d) a skipping rope
  4. 4.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) brass (d) rubber
  5. 5.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) iron (d) aluminium
  6. 6.🧱 Which property matters most for a water tank? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  7. 7.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  8. 8.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.True or false: a raincoat needs a waterproof material. (a) False (b) True
  11. 11.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a waterproof material? (a) a skipping rope (b) a boat hull (c) an oven glove (d) a switch contact
  16. 16.True or false: a raincoat needs a heat insulator. (a) True (b) False
  17. 17.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  18. 18.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  19. 19.🧱 Which property matters most for a yoga mat? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  20. 20.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  21. 21.Which of these needs a heat insulator? (a) a magnifier lens (b) a switch contact (c) a water tank (d) a cooking pot handle
  22. 22.Which of these needs a flexible material? (a) a tea flask lining (b) a skipping rope (c) an umbrella cover (d) a boat hull
  23. 23.🧱 Which property matters most for a switch contact? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  24. 24.Which of these needs a waterproof material? (a) a yoga mat (b) a car seat belt (c) a plug pin (d) a roof sheet
  25. 25.True or false: a water tank needs a flexible material. (a) True (b) False
  26. 26.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  27. 27.🧱 Which property matters most for an oven glove? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  28. 28.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  29. 29.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  31. 31.🔍 Which is the odd one out? (a) brass (b) graphite (c) rubber (d) copper
  32. 32.Which of these needs a waterproof material? (a) a magnifier lens (b) a yoga mat (c) a plug pin (d) a raincoat
  33. 33.Which of these needs an electrical conductor? (a) a window pane (b) a car windscreen (c) a cooking pot handle (d) a switch contact
  34. 34.Which of these needs a transparent material? (a) a yoga mat (b) a roof sheet (c) an umbrella cover (d) a window pane
  35. 35.True or false: an oven glove needs a transparent material. (a) True (b) False
  36. 36.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  38. 38.True or false: a hair band needs a flexible material. (a) True (b) False
  39. 39.Which of these needs a heat insulator? (a) a water tank (b) a skipping rope (c) a roof sheet (d) an oven glove
  40. 40.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. an insulator
  2. False
  3. a magnifier lens
  4. brass
  5. dry wood
  6. waterproof
  7. electrical conductor
  8. a conductor
  9. a conductor
  10. True
  11. an insulator
  12. a conductor
  13. a conductor
  14. an insulator
  15. a boat hull
  16. False
  17. transparent
  18. waterproof
  19. flexible
  20. True
  21. a cooking pot handle
  22. a skipping rope
  23. electrical conductor
  24. a roof sheet
  25. False
  26. waterproof
  27. heat insulator
  28. plastic-coated cloth
  29. an insulator
  30. False
  31. rubber
  32. a raincoat
  33. a switch contact
  34. a window pane
  35. False
  36. a conductor
  37. True
  38. True
  39. an oven glove
  40. an insulator

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