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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 666 · 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) brass (b) dry wood (c) cotton cloth (d) plastic
  2. 2.Which of these needs a waterproof material? (a) a boat hull (b) a window pane (c) a skipping rope (d) a magnifier lens
  3. 3.Which of these needs a flexible material? (a) a magnifier lens (b) a spectacle lens (c) a tea flask lining (d) a car seat belt
  4. 4.🧱 Which property matters most for a tea flask lining? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  5. 5.Which of these needs an electrical conductor? (a) a water tank (b) a plug pin (c) a window pane (d) a raincoat
  6. 6.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  7. 7.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) wood or plastic (c) copper (d) iron
  8. 8.Which of these needs a flexible material? (a) an umbrella cover (b) a yoga mat (c) a window pane (d) a roof sheet
  9. 9.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  10. 10.Which of these needs an electrical conductor? (a) a car seat belt (b) a skipping rope (c) the core of a wire (d) a cooking pot handle
  11. 11.Which of these needs an electrical conductor? (a) an umbrella cover (b) a hair band (c) a magnifier lens (d) a switch contact
  12. 12.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  13. 13.True or false: a raincoat needs a waterproof material. (a) True (b) False
  14. 14.🧱 Which material is best for a window pane? (a) wood (b) brick (c) glass (d) steel
  15. 15.🧱 Which property matters most for a roof sheet? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  16. 16.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.True or false: a car seat belt needs a flexible material. (a) False (b) True
  19. 19.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
  20. 20.🧱 Which property matters most for a car seat belt? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  21. 21.True or false: the core of a wire needs a heat insulator. (a) False (b) True
  22. 22.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  23. 23.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) wood (d) copper
  26. 26.🔍 Which is the odd one out? (a) dry wood (b) iron (c) copper (d) aluminium
  27. 27.Which of these needs a transparent material? (a) a boat hull (b) an umbrella cover (c) a magnifier lens (d) a hair band
  28. 28.True or false: a boat hull needs a heat insulator. (a) False (b) True
  29. 29.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  31. 31.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) dry wood (d) rubber
  32. 32.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  33. 33.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) plastic (d) rubber
  35. 35.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) steel (b) brass (c) graphite (d) rubber
  37. 37.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  38. 38.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.Which of these needs a waterproof material? (a) an umbrella cover (b) a spectacle lens (c) a yoga mat (d) a tea flask lining
  40. 40.Which of these needs a heat insulator? (a) a switch contact (b) the core of a wire (c) a cooking pot handle (d) a water tank

Answer key

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

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