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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 523 · 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 property matters most for a plug pin? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  2. 2.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) iron (d) steel
  3. 3.Which of these needs a flexible material? (a) a plug pin (b) a car windscreen (c) a raincoat (d) a yoga mat
  4. 4.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  5. 5.Which of these needs a transparent material? (a) an oven glove (b) a switch contact (c) a hair band (d) a car windscreen
  6. 6.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  7. 7.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  8. 8.Which of these needs a transparent material? (a) a switch contact (b) a skipping rope (c) a window pane (d) a tea flask lining
  9. 9.True or false: a water tank needs a heat insulator. (a) False (b) True
  10. 10.🔍 Which is the odd one out? (a) iron (b) brass (c) plastic (d) graphite
  11. 11.Which of these needs a flexible material? (a) an oven glove (b) a skipping rope (c) a water tank (d) a raincoat
  12. 12.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  13. 13.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) brass (b) plastic (c) cotton cloth (d) glass
  17. 17.Which of these needs a waterproof material? (a) a cooking pot handle (b) a water tank (c) the core of a wire (d) a yoga mat
  18. 18.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  19. 19.True or false: a boat hull needs a waterproof material. (a) True (b) False
  20. 20.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a waterproof material? (a) a window pane (b) a plug pin (c) an umbrella cover (d) a yoga mat
  22. 22.🧱 Which property matters most for the core of a wire? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  23. 23.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  24. 24.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  27. 27.Which of these needs a flexible material? (a) a water tank (b) a roof sheet (c) a window pane (d) a hair band
  28. 28.Which of these needs a heat insulator? (a) a car seat belt (b) a water tank (c) a tea flask lining (d) a raincoat
  29. 29.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) copper (d) aluminium
  30. 30.🔍 Which is the odd one out? (a) plastic (b) rubber (c) steel (d) dry wood
  31. 31.Which of these needs a flexible material? (a) a switch contact (b) a magnifier lens (c) a car seat belt (d) a raincoat
  32. 32.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  33. 33.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  34. 34.True or false: a car windscreen needs a transparent material. (a) False (b) True
  35. 35.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  36. 36.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) aluminium (d) rubber
  38. 38.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.True or false: a plug pin needs a transparent material. (a) False (b) True
  40. 40.True or false: a raincoat needs a flexible material. (a) False (b) True

Answer key

  1. electrical conductor
  2. clay pottery
  3. a yoga mat
  4. waterproof
  5. a car windscreen
  6. transparent
  7. transparent
  8. a window pane
  9. False
  10. plastic
  11. a skipping rope
  12. steel
  13. a conductor
  14. a conductor
  15. a conductor
  16. brass
  17. a water tank
  18. plastic-coated cloth
  19. True
  20. an insulator
  21. an umbrella cover
  22. electrical conductor
  23. False
  24. an insulator
  25. a conductor
  26. copper
  27. a hair band
  28. a tea flask lining
  29. wood or plastic
  30. steel
  31. a car seat belt
  32. flexible
  33. glass
  34. True
  35. waterproof
  36. a conductor
  37. aluminium
  38. a conductor
  39. False
  40. False

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