← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 751 · 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) graphite (b) copper (c) iron (d) dry wood
  2. 2.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  3. 3.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  4. 4.Which of these needs a heat insulator? (a) the core of a wire (b) a roof sheet (c) a cooking pot handle (d) a yoga mat
  5. 5.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  6. 6.True or false: an oven glove needs a heat insulator. (a) True (b) False
  7. 7.Which of these needs a flexible material? (a) a boat hull (b) a spectacle lens (c) a car seat belt (d) a plug pin
  8. 8.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) brass (b) aluminium (c) plastic (d) graphite
  10. 10.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.Which of these needs a flexible material? (a) a raincoat (b) a window pane (c) a hair band (d) the core of a wire
  12. 12.Which of these needs an electrical conductor? (a) a hair band (b) a raincoat (c) a boat hull (d) the core of a wire
  13. 13.True or false: a tea flask lining needs a transparent material. (a) True (b) False
  14. 14.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  15. 15.🧱 Which property matters most for a switch contact? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  16. 16.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  18. 18.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  19. 19.True or false: a magnifier lens needs an electrical conductor. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) steel (d) glass
  21. 21.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  23. 23.🔍 Which is the odd one out? (a) brass (b) plastic (c) cotton cloth (d) rubber
  24. 24.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  25. 25.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  26. 26.Which of these needs a transparent material? (a) a yoga mat (b) a magnifier lens (c) a water tank (d) a skipping rope
  27. 27.Which of these needs a transparent material? (a) a yoga mat (b) a boat hull (c) an oven glove (d) a window pane
  28. 28.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  29. 29.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  31. 31.Which of these needs a flexible material? (a) a magnifier lens (b) a cooking pot handle (c) a raincoat (d) a yoga mat
  32. 32.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  33. 33.🧱 Which material is best for a window pane? (a) brick (b) glass (c) steel (d) wood
  34. 34.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) rubber (d) graphite
  35. 35.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  36. 36.True or false: a raincoat needs a heat insulator. (a) True (b) False
  37. 37.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  38. 38.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  39. 39.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.Which of these needs a heat insulator? (a) a yoga mat (b) a raincoat (c) a spectacle lens (d) an oven glove

Answer key

  1. dry wood
  2. waterproof
  3. copper
  4. a cooking pot handle
  5. flexible
  6. True
  7. a car seat belt
  8. False
  9. plastic
  10. a conductor
  11. a hair band
  12. the core of a wire
  13. False
  14. True
  15. electrical conductor
  16. a conductor
  17. False
  18. steel
  19. False
  20. steel
  21. an insulator
  22. heat insulator
  23. brass
  24. wood or plastic
  25. flexible
  26. a magnifier lens
  27. a window pane
  28. False
  29. a conductor
  30. heat insulator
  31. a yoga mat
  32. plastic-coated cloth
  33. glass
  34. graphite
  35. False
  36. False
  37. electrical conductor
  38. False
  39. an insulator
  40. an oven glove

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