← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 169 · 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 rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  4. 4.Which of these needs an electrical conductor? (a) a car seat belt (b) an umbrella cover (c) a water tank (d) a switch contact
  5. 5.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  6. 6.Which of these needs a flexible material? (a) a water tank (b) a car windscreen (c) the core of a wire (d) a skipping rope
  7. 7.🔍 Which is the odd one out? (a) glass (b) steel (c) aluminium (d) copper
  8. 8.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) brass (d) iron
  9. 9.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  10. 10.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) brass (c) plastic (d) copper
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.Which of these needs an electrical conductor? (a) a car windscreen (b) the core of a wire (c) a tea flask lining (d) a window pane
  14. 14.Which of these needs a flexible material? (a) a raincoat (b) a roof sheet (c) a spectacle lens (d) a yoga mat
  15. 15.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) iron (b) brass (c) dry wood (d) aluminium
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.Which of these needs a flexible material? (a) a plug pin (b) a window pane (c) the core of a wire (d) a hair band
  19. 19.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  20. 20.Which of these needs a transparent material? (a) a cooking pot handle (b) a roof sheet (c) a spectacle lens (d) a car seat belt
  21. 21.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  22. 22.🧱 Which material is best for a window pane? (a) glass (b) brick (c) steel (d) wood
  23. 23.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  24. 24.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🔍 Which is the odd one out? (a) clay pottery (b) copper (c) plastic (d) glass
  26. 26.Which of these needs a waterproof material? (a) a car windscreen (b) a roof sheet (c) a tea flask lining (d) a switch contact
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) plastic (d) glass
  28. 28.🔍 Which is the odd one out? (a) steel (b) dry wood (c) clay pottery (d) plastic
  29. 29.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) steel (d) graphite
  31. 31.🔍 Which is the odd one out? (a) plastic (b) rubber (c) iron (d) clay pottery
  32. 32.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  33. 33.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  34. 34.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  35. 35.True or false: a plug pin needs a waterproof material. (a) True (b) False
  36. 36.True or false: a water tank needs a waterproof material. (a) True (b) False
  37. 37.Which of these needs an electrical conductor? (a) a yoga mat (b) a plug pin (c) a spectacle lens (d) an umbrella cover
  38. 38.🧱 Which property matters most for the core of a wire? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  39. 39.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) rubber (d) plastic
  40. 40.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) heat insulator (d) flexible

Answer key

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

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