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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 551 · 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 a raincoat? (a) paper (b) cotton wool (c) plastic-coated cloth (d) cardboard
  2. 2.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) clay pottery (d) plastic
  3. 3.Which of these needs a flexible material? (a) a boat hull (b) a hair band (c) a roof sheet (d) a plug pin
  4. 4.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  5. 5.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) rubber (d) glass
  6. 6.True or false: the core of a wire needs a transparent material. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) plastic (d) rubber
  8. 8.🔍 Which is the odd one out? (a) iron (b) rubber (c) clay pottery (d) plastic
  9. 9.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  10. 10.Which of these needs a flexible material? (a) a raincoat (b) a car windscreen (c) the core of a wire (d) a yoga mat
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.🔍 Which is the odd one out? (a) steel (b) glass (c) aluminium (d) graphite
  13. 13.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  14. 14.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a transparent material? (a) a roof sheet (b) an oven glove (c) a tea flask lining (d) a magnifier lens
  16. 16.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  17. 17.🧱 Which property matters most for a switch contact? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  18. 18.Which of these needs a waterproof material? (a) a switch contact (b) a water tank (c) a spectacle lens (d) a cooking pot handle
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  20. 20.Which of these needs an electrical conductor? (a) a cooking pot handle (b) an umbrella cover (c) a raincoat (d) the core of a wire
  21. 21.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  23. 23.Which of these needs a flexible material? (a) a spectacle lens (b) a water tank (c) a boat hull (d) a skipping rope
  24. 24.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  25. 25.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  26. 26.Which of these needs a flexible material? (a) a tea flask lining (b) an oven glove (c) a magnifier lens (d) a car seat belt
  27. 27.Which of these needs a heat insulator? (a) a roof sheet (b) a magnifier lens (c) an oven glove (d) an umbrella cover
  28. 28.Which of these needs a waterproof material? (a) a magnifier lens (b) a roof sheet (c) a cooking pot handle (d) a car seat belt
  29. 29.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) glass (d) steel
  30. 30.🔍 Which is the odd one out? (a) brass (b) steel (c) plastic (d) graphite
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  35. 35.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  37. 37.Which of these needs a waterproof material? (a) a magnifier lens (b) a skipping rope (c) a yoga mat (d) a boat hull
  38. 38.Which of these needs a waterproof material? (a) a spectacle lens (b) a skipping rope (c) a raincoat (d) a yoga mat
  39. 39.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  40. 40.True or false: a spectacle lens needs a transparent material. (a) True (b) False

Answer key

  1. plastic-coated cloth
  2. aluminium
  3. a hair band
  4. steel
  5. copper
  6. False
  7. copper
  8. iron
  9. transparent
  10. a yoga mat
  11. a conductor
  12. glass
  13. waterproof
  14. an insulator
  15. a magnifier lens
  16. electrical conductor
  17. electrical conductor
  18. a water tank
  19. a conductor
  20. the core of a wire
  21. a conductor
  22. waterproof
  23. a skipping rope
  24. transparent
  25. wood or plastic
  26. a car seat belt
  27. an oven glove
  28. a roof sheet
  29. steel
  30. plastic
  31. a conductor
  32. an insulator
  33. an insulator
  34. glass
  35. a conductor
  36. waterproof
  37. a boat hull
  38. a raincoat
  39. True
  40. True

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