← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 86 · 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 is the odd one out? (a) steel (b) aluminium (c) brass (d) glass
  2. 2.Which of these needs a heat insulator? (a) a car windscreen (b) a plug pin (c) a skipping rope (d) an oven glove
  3. 3.Which of these needs an electrical conductor? (a) a spectacle lens (b) a plug pin (c) a water tank (d) a yoga mat
  4. 4.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) steel (b) iron (c) copper (d) rubber
  7. 7.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  8. 8.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  9. 9.Which of these needs a flexible material? (a) a hair band (b) a boat hull (c) a plug pin (d) an oven glove
  10. 10.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.Which of these needs a flexible material? (a) a roof sheet (b) an oven glove (c) a yoga mat (d) the core of a wire
  12. 12.Which of these needs a transparent material? (a) a raincoat (b) a car windscreen (c) an oven glove (d) a switch contact
  13. 13.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) brass (d) rubber
  16. 16.🧱 Which property matters most for a switch contact? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  17. 17.🔍 Which is the odd one out? (a) glass (b) rubber (c) steel (d) cotton cloth
  18. 18.Which of these needs a waterproof material? (a) a car windscreen (b) a roof sheet (c) an oven glove (d) a plug pin
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  22. 22.Which of these needs a heat insulator? (a) a tea flask lining (b) a car windscreen (c) a spectacle lens (d) a skipping rope
  23. 23.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  24. 24.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  25. 25.Which of these needs a transparent material? (a) a spectacle lens (b) a roof sheet (c) a water tank (d) a skipping rope
  26. 26.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  27. 27.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  28. 28.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) aluminium (d) steel
  30. 30.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  31. 31.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  32. 32.Which of these needs a flexible material? (a) a switch contact (b) an umbrella cover (c) a car seat belt (d) an oven glove
  33. 33.Which of these needs a waterproof material? (a) a tea flask lining (b) the core of a wire (c) a plug pin (d) an umbrella cover
  34. 34.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  35. 35.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  36. 36.🔍 Which is the odd one out? (a) glass (b) rubber (c) cotton cloth (d) graphite
  37. 37.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) graphite (d) copper
  38. 38.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: a magnifier lens needs a waterproof material. (a) False (b) True

Answer key

  1. glass
  2. an oven glove
  3. a plug pin
  4. a conductor
  5. True
  6. rubber
  7. plastic-coated cloth
  8. waterproof
  9. a hair band
  10. a conductor
  11. a yoga mat
  12. a car windscreen
  13. waterproof
  14. a conductor
  15. brass
  16. electrical conductor
  17. steel
  18. a roof sheet
  19. an insulator
  20. a conductor
  21. copper
  22. a tea flask lining
  23. True
  24. heat insulator
  25. a spectacle lens
  26. flexible
  27. steel
  28. an insulator
  29. cotton cloth
  30. True
  31. waterproof
  32. a car seat belt
  33. an umbrella cover
  34. False
  35. wood or plastic
  36. graphite
  37. clay pottery
  38. an insulator
  39. a conductor
  40. False

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