← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 215 · 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 flexible material? (a) a car seat belt (b) a car windscreen (c) a switch contact (d) a tea flask lining
  2. 2.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  3. 3.🔍 Which is the odd one out? (a) graphite (b) rubber (c) clay pottery (d) plastic
  4. 4.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  5. 5.Which of these needs a flexible material? (a) a magnifier lens (b) a yoga mat (c) a car windscreen (d) a roof sheet
  6. 6.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  7. 7.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  8. 8.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  9. 9.Which of these needs a waterproof material? (a) a car windscreen (b) a skipping rope (c) a spectacle lens (d) a roof sheet
  10. 10.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  11. 11.Which of these needs a waterproof material? (a) a cooking pot handle (b) a spectacle lens (c) a yoga mat (d) a raincoat
  12. 12.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) brass (d) copper
  14. 14.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  15. 15.🔍 Which is the odd one out? (a) rubber (b) clay pottery (c) dry wood (d) aluminium
  16. 16.Which of these needs a heat insulator? (a) a tea flask lining (b) a boat hull (c) a roof sheet (d) a window pane
  17. 17.🔍 Which is the odd one out? (a) plastic (b) iron (c) dry wood (d) rubber
  18. 18.True or false: a raincoat needs a waterproof material. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) plastic (d) dry wood
  20. 20.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  21. 21.Which of these needs a flexible material? (a) a cooking pot handle (b) a switch contact (c) a magnifier lens (d) a skipping rope
  22. 22.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  23. 23.Which of these needs an electrical conductor? (a) the core of a wire (b) an oven glove (c) a window pane (d) a yoga mat
  24. 24.Which of these needs a waterproof material? (a) the core of a wire (b) a cooking pot handle (c) a yoga mat (d) an umbrella cover
  25. 25.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  28. 28.Which of these needs a heat insulator? (a) a magnifier lens (b) a car seat belt (c) a cooking pot handle (d) a raincoat
  29. 29.True or false: a car windscreen needs a transparent material. (a) False (b) True
  30. 30.🧱 Which property matters most for a window pane? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  31. 31.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  32. 32.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) brass (d) copper
  33. 33.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  34. 34.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) copper (b) iron (c) rubber (d) aluminium
  37. 37.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  38. 38.True or false: the core of a wire needs a heat insulator. (a) True (b) False
  39. 39.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  40. 40.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

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

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