← Materials and their properties lesson New set →

Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 990 · 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 dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🔍 Which is the odd one out? (a) iron (b) glass (c) rubber (d) cotton cloth
  3. 3.Which of these needs a flexible material? (a) a skipping rope (b) a magnifier lens (c) a window pane (d) a cooking pot handle
  4. 4.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  5. 5.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  6. 6.True or false: the core of a wire needs a transparent material. (a) False (b) True
  7. 7.Which of these needs a transparent material? (a) a raincoat (b) a cooking pot handle (c) an umbrella cover (d) a magnifier lens
  8. 8.True or false: a window pane needs a flexible material. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) cotton cloth (d) brass
  10. 10.Which of these needs a waterproof material? (a) a skipping rope (b) a switch contact (c) a car windscreen (d) a roof sheet
  11. 11.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  12. 12.🧱 Which material is best for a cooking pot handle? (a) copper (b) wood or plastic (c) iron (d) aluminium
  13. 13.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  14. 14.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  15. 15.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) dry wood (b) copper (c) rubber (d) glass
  17. 17.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.True or false: a roof sheet needs a flexible material. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) glass (d) dry wood
  20. 20.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a hair band (c) the core of a wire (d) a water tank
  21. 21.True or false: a boat hull needs a flexible material. (a) True (b) False
  22. 22.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  24. 24.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  26. 26.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  27. 27.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  28. 28.🧱 Which property matters most for a roof sheet? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  29. 29.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  30. 30.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs a flexible material? (a) a spectacle lens (b) a raincoat (c) a car seat belt (d) an oven glove
  32. 32.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) steel (d) iron
  34. 34.True or false: a water tank needs a waterproof material. (a) False (b) True
  35. 35.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  36. 36.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  37. 37.True or false: a plug pin needs a waterproof material. (a) False (b) True
  38. 38.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  39. 39.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  40. 40.Which of these needs an electrical conductor? (a) an umbrella cover (b) a spectacle lens (c) a boat hull (d) a plug pin

Answer key

  1. an insulator
  2. iron
  3. a skipping rope
  4. True
  5. glass
  6. False
  7. a magnifier lens
  8. False
  9. brass
  10. a roof sheet
  11. steel
  12. wood or plastic
  13. transparent
  14. copper
  15. a conductor
  16. copper
  17. an insulator
  18. False
  19. aluminium
  20. the core of a wire
  21. False
  22. a conductor
  23. waterproof
  24. a conductor
  25. electrical conductor
  26. heat insulator
  27. False
  28. waterproof
  29. True
  30. a conductor
  31. a car seat belt
  32. False
  33. dry wood
  34. True
  35. transparent
  36. heat insulator
  37. False
  38. waterproof
  39. flexible
  40. a plug pin

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