← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 891 · 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.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  2. 2.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.True or false: a skipping rope needs a flexible material. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) rubber (b) copper (c) plastic (d) cotton cloth
  5. 5.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) copper (d) iron
  7. 7.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  9. 9.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) iron (d) clay pottery
  10. 10.True or false: a window pane needs a transparent material. (a) False (b) True
  11. 11.Which of these needs a flexible material? (a) a yoga mat (b) a cooking pot handle (c) a spectacle lens (d) the core of a wire
  12. 12.Which of these needs a transparent material? (a) an umbrella cover (b) a plug pin (c) a spectacle lens (d) a roof sheet
  13. 13.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🔍 Which is the odd one out? (a) rubber (b) brass (c) cotton cloth (d) glass
  15. 15.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  16. 16.True or false: a water tank needs a waterproof material. (a) False (b) True
  17. 17.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
  18. 18.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  19. 19.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) copper (d) dry wood
  20. 20.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.Which of these needs a waterproof material? (a) a spectacle lens (b) a yoga mat (c) an umbrella cover (d) a skipping rope
  23. 23.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) brass (d) steel
  24. 24.Which of these needs a waterproof material? (a) a magnifier lens (b) a raincoat (c) a skipping rope (d) a hair band
  25. 25.Which of these needs an electrical conductor? (a) an umbrella cover (b) a hair band (c) a raincoat (d) a plug pin
  26. 26.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  27. 27.True or false: a hair band needs an electrical conductor. (a) True (b) False
  28. 28.True or false: a car windscreen needs a transparent material. (a) True (b) False
  29. 29.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  30. 30.Which of these needs a heat insulator? (a) a switch contact (b) an oven glove (c) an umbrella cover (d) a boat hull
  31. 31.Which of these needs a flexible material? (a) a magnifier lens (b) a cooking pot handle (c) a spectacle lens (d) a skipping rope
  32. 32.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  33. 33.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  34. 34.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.Which of these needs a waterproof material? (a) a window pane (b) a water tank (c) the core of a wire (d) a magnifier lens
  36. 36.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  37. 37.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  38. 38.True or false: a yoga mat needs a flexible material. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) copper (b) iron (c) glass (d) aluminium
  40. 40.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) flexible (d) electrical conductor

Answer key

  1. False
  2. a conductor
  3. True
  4. copper
  5. an insulator
  6. rubber
  7. a conductor
  8. heat insulator
  9. iron
  10. True
  11. a yoga mat
  12. a spectacle lens
  13. a conductor
  14. brass
  15. False
  16. True
  17. plastic-coated cloth
  18. waterproof
  19. dry wood
  20. a conductor
  21. an insulator
  22. an umbrella cover
  23. clay pottery
  24. a raincoat
  25. a plug pin
  26. copper
  27. False
  28. True
  29. transparent
  30. an oven glove
  31. a skipping rope
  32. transparent
  33. waterproof
  34. an insulator
  35. a water tank
  36. wood or plastic
  37. steel
  38. True
  39. glass
  40. electrical conductor

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