← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 962 · 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 waterproof material? (a) an umbrella cover (b) the core of a wire (c) a tea flask lining (d) a yoga mat
  2. 2.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  3. 3.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  5. 5.Which of these needs a waterproof material? (a) a tea flask lining (b) a spectacle lens (c) a magnifier lens (d) a water tank
  6. 6.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  7. 7.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  8. 8.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.Which of these needs a flexible material? (a) a raincoat (b) a roof sheet (c) a car seat belt (d) a window pane
  11. 11.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  12. 12.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  13. 13.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) brass (d) plastic
  14. 14.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  15. 15.True or false: a switch contact needs a waterproof material. (a) False (b) True
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a transparent material? (a) a switch contact (b) a roof sheet (c) a yoga mat (d) a spectacle lens
  18. 18.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🔍 Which is the odd one out? (a) copper (b) brass (c) graphite (d) clay pottery
  20. 20.Which of these needs a waterproof material? (a) a window pane (b) a raincoat (c) a skipping rope (d) a hair band
  21. 21.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  22. 22.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  23. 23.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) rubber (d) aluminium
  25. 25.🧱 Which property matters most for a magnifier lens? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  26. 26.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  27. 27.🧱 Which property matters most for a raincoat? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  28. 28.🧱 Which property matters most for a water tank? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  29. 29.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  30. 30.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  32. 32.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  33. 33.🧱 Which property matters most for a hair band? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  34. 34.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) clay pottery (d) steel
  35. 35.True or false: a car seat belt needs a flexible material. (a) False (b) True
  36. 36.Which of these needs an electrical conductor? (a) a water tank (b) a switch contact (c) an umbrella cover (d) a skipping rope
  37. 37.🧱 Which property matters most for an oven glove? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  38. 38.True or false: a water tank needs a waterproof material. (a) True (b) False
  39. 39.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  40. 40.True or false: a switch contact needs a flexible material. (a) False (b) True

Answer key

  1. an umbrella cover
  2. False
  3. a conductor
  4. steel
  5. a water tank
  6. copper
  7. transparent
  8. an insulator
  9. an insulator
  10. a car seat belt
  11. False
  12. plastic-coated cloth
  13. brass
  14. electrical conductor
  15. False
  16. a conductor
  17. a spectacle lens
  18. an insulator
  19. clay pottery
  20. a raincoat
  21. True
  22. False
  23. an insulator
  24. aluminium
  25. transparent
  26. waterproof
  27. waterproof
  28. waterproof
  29. glass
  30. a conductor
  31. waterproof
  32. flexible
  33. flexible
  34. steel
  35. True
  36. a switch contact
  37. heat insulator
  38. True
  39. True
  40. False

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