← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 874 · 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 core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  2. 2.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🔍 Which is the odd one out? (a) aluminium (b) glass (c) dry wood (d) clay pottery
  4. 4.True or false: a skipping rope needs an electrical conductor. (a) False (b) True
  5. 5.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) iron (d) wood or plastic
  6. 6.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) iron (d) plastic
  7. 7.Which of these needs a heat insulator? (a) a raincoat (b) a water tank (c) a car seat belt (d) a cooking pot handle
  8. 8.🧱 Which property matters most for a magnifier lens? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  9. 9.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  10. 10.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  11. 11.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  12. 12.🔍 Which is the odd one out? (a) brass (b) rubber (c) steel (d) iron
  13. 13.Which of these needs a flexible material? (a) a raincoat (b) a car seat belt (c) an oven glove (d) an umbrella cover
  14. 14.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  15. 15.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  16. 16.Which of these needs an electrical conductor? (a) a car seat belt (b) a plug pin (c) a boat hull (d) a skipping rope
  17. 17.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  19. 19.🔍 Which is the odd one out? (a) dry wood (b) steel (c) rubber (d) plastic
  20. 20.Which of these needs a flexible material? (a) a water tank (b) a boat hull (c) a plug pin (d) a skipping rope
  21. 21.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  22. 22.🔍 Which is the odd one out? (a) glass (b) copper (c) aluminium (d) graphite
  23. 23.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🔍 Which is the odd one out? (a) rubber (b) brass (c) glass (d) cotton cloth
  25. 25.Which of these needs a waterproof material? (a) a car seat belt (b) a raincoat (c) a hair band (d) a magnifier lens
  26. 26.True or false: a tea flask lining needs an electrical conductor. (a) False (b) True
  27. 27.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  28. 28.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  29. 29.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  30. 30.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  31. 31.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  32. 32.🔍 Which is the odd one out? (a) brass (b) steel (c) dry wood (d) iron
  33. 33.🧱 Which property matters most for the core of a wire? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  34. 34.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  35. 35.Which of these needs a waterproof material? (a) a car seat belt (b) a water tank (c) a tea flask lining (d) a skipping rope
  36. 36.🔍 Which is the odd one out? (a) dry wood (b) copper (c) rubber (d) clay pottery
  37. 37.🔍 Which is the odd one out? (a) brass (b) graphite (c) steel (d) plastic
  38. 38.True or false: a raincoat needs a flexible material. (a) False (b) True
  39. 39.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  40. 40.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) clay pottery (d) brass

Answer key

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

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