← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 426 · 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 property matters most for a switch contact? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  2. 2.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.True or false: a raincoat needs a flexible material. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) plastic (b) glass (c) aluminium (d) dry wood
  5. 5.True or false: an oven glove needs a heat insulator. (a) False (b) True
  6. 6.🔍 Which is the odd one out? (a) aluminium (b) plastic (c) steel (d) iron
  7. 7.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  8. 8.🧱 Which property matters most for a boat hull? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  9. 9.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) plastic (d) graphite
  10. 10.True or false: a hair band needs a flexible material. (a) False (b) True
  11. 11.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  12. 12.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) aluminium (d) iron
  13. 13.Which of these needs a waterproof material? (a) a water tank (b) a window pane (c) a car seat belt (d) a switch contact
  14. 14.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  15. 15.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  17. 17.True or false: a hair band needs a transparent material. (a) True (b) False
  18. 18.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  19. 19.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) brass (d) aluminium
  20. 20.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  22. 22.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) brass (d) glass
  23. 23.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  24. 24.Which of these needs a flexible material? (a) a raincoat (b) a roof sheet (c) a yoga mat (d) a boat hull
  25. 25.🧱 Which property matters most for a yoga mat? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  26. 26.🔍 Which is the odd one out? (a) aluminium (b) copper (c) graphite (d) rubber
  27. 27.🧱 Which material is best for a window pane? (a) brick (b) wood (c) steel (d) glass
  28. 28.Which of these needs a waterproof material? (a) a magnifier lens (b) a hair band (c) a raincoat (d) a yoga mat
  29. 29.Which of these needs a transparent material? (a) an oven glove (b) a raincoat (c) a magnifier lens (d) a car seat belt
  30. 30.Which of these needs a heat insulator? (a) an umbrella cover (b) a hair band (c) a boat hull (d) an oven glove
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) copper (d) cotton cloth
  34. 34.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  35. 35.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) dry wood (b) aluminium (c) copper (d) iron
  38. 38.Which of these needs an electrical conductor? (a) a switch contact (b) an oven glove (c) a boat hull (d) a spectacle lens
  39. 39.🧱 Which property matters most for a hair band? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  40. 40.Which of these needs an electrical conductor? (a) the core of a wire (b) a boat hull (c) a skipping rope (d) a cooking pot handle

Answer key

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

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