← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 185 · 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 material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  2. 2.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  3. 3.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  4. 4.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  5. 5.Which of these needs a waterproof material? (a) a magnifier lens (b) a car seat belt (c) a raincoat (d) a switch contact
  6. 6.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  7. 7.Which of these needs a waterproof material? (a) a car windscreen (b) a switch contact (c) a tea flask lining (d) an umbrella cover
  8. 8.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a window pane? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  10. 10.Which of these needs a waterproof material? (a) a window pane (b) a car seat belt (c) a spectacle lens (d) a water tank
  11. 11.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) copper (d) graphite
  12. 12.True or false: a hair band needs an electrical conductor. (a) True (b) False
  13. 13.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  15. 15.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) copper (d) steel
  16. 16.🧱 Which property matters most for a plug pin? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  17. 17.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  18. 18.True or false: a hair band needs a flexible material. (a) False (b) True
  19. 19.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  20. 20.Which of these needs a transparent material? (a) a tea flask lining (b) a spectacle lens (c) a plug pin (d) a yoga mat
  21. 21.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  22. 22.🔍 Which is the odd one out? (a) steel (b) glass (c) graphite (d) iron
  23. 23.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) dry wood (d) rubber
  24. 24.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) brass (d) steel
  25. 25.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  26. 26.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  27. 27.True or false: a window pane needs a waterproof material. (a) False (b) True
  28. 28.True or false: a boat hull needs a heat insulator. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) plastic (d) graphite
  30. 30.🔍 Which is the odd one out? (a) graphite (b) iron (c) plastic (d) brass
  31. 31.Which of these needs a transparent material? (a) a raincoat (b) an umbrella cover (c) a plug pin (d) a window pane
  32. 32.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  33. 33.True or false: a hair band needs a waterproof material. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) copper (b) dry wood (c) cotton cloth (d) clay pottery
  35. 35.Which of these needs a flexible material? (a) a yoga mat (b) a window pane (c) a switch contact (d) an oven glove
  36. 36.Which of these needs an electrical conductor? (a) a roof sheet (b) a spectacle lens (c) the core of a wire (d) a yoga mat
  37. 37.🧱 Which property matters most for a switch contact? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  38. 38.Which of these needs a transparent material? (a) a raincoat (b) a car windscreen (c) a yoga mat (d) a switch contact
  39. 39.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  40. 40.🧱 Which property matters most for a car seat belt? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible

Answer key

  1. steel
  2. waterproof
  3. an insulator
  4. glass
  5. a raincoat
  6. False
  7. an umbrella cover
  8. an insulator
  9. transparent
  10. a water tank
  11. clay pottery
  12. False
  13. a conductor
  14. waterproof
  15. dry wood
  16. electrical conductor
  17. False
  18. True
  19. plastic-coated cloth
  20. a spectacle lens
  21. waterproof
  22. glass
  23. aluminium
  24. cotton cloth
  25. True
  26. True
  27. False
  28. False
  29. graphite
  30. plastic
  31. a window pane
  32. waterproof
  33. False
  34. copper
  35. a yoga mat
  36. the core of a wire
  37. electrical conductor
  38. a car windscreen
  39. False
  40. flexible

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