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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 136 · 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 iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  3. 3.🧱 Which property matters most for a water tank? (a) transparent (b) flexible (c) heat insulator (d) waterproof
  4. 4.True or false: a window pane needs a waterproof material. (a) False (b) True
  5. 5.True or false: a switch contact needs a transparent material. (a) False (b) True
  6. 6.🧱 Which property matters most for a hair band? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  7. 7.True or false: a switch contact needs a heat insulator. (a) False (b) True
  8. 8.Which of these needs a heat insulator? (a) a raincoat (b) a switch contact (c) a yoga mat (d) an oven glove
  9. 9.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
  10. 10.🧱 Which property matters most for a magnifier lens? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  11. 11.Which of these needs a heat insulator? (a) a plug pin (b) a raincoat (c) a car windscreen (d) a cooking pot handle
  12. 12.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  13. 13.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  14. 14.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  15. 15.🔍 Which is the odd one out? (a) brass (b) dry wood (c) copper (d) aluminium
  16. 16.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  17. 17.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  18. 18.Which of these needs a heat insulator? (a) an umbrella cover (b) a water tank (c) a tea flask lining (d) the core of a wire
  19. 19.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.Which of these needs a waterproof material? (a) a window pane (b) a skipping rope (c) a water tank (d) a car seat belt
  21. 21.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  22. 22.Which of these needs a flexible material? (a) the core of a wire (b) a water tank (c) a car seat belt (d) a window pane
  23. 23.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  24. 24.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) clay pottery (d) cotton cloth
  25. 25.Which of these needs a transparent material? (a) a roof sheet (b) a water tank (c) a car windscreen (d) a raincoat
  26. 26.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) steel (b) copper (c) rubber (d) graphite
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) copper (d) brass
  29. 29.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: an oven glove needs a flexible material. (a) False (b) True
  32. 32.Which of these needs a waterproof material? (a) a hair band (b) a boat hull (c) a cooking pot handle (d) a yoga mat
  33. 33.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  34. 34.Which of these needs a transparent material? (a) a spectacle lens (b) a tea flask lining (c) a boat hull (d) a hair band
  35. 35.Which of these needs an electrical conductor? (a) a car windscreen (b) a water tank (c) a tea flask lining (d) the core of a wire
  36. 36.Which of these needs an electrical conductor? (a) a raincoat (b) a magnifier lens (c) a roof sheet (d) a switch contact
  37. 37.🧱 Which property matters most for an umbrella cover? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  38. 38.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) plastic (d) copper
  40. 40.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) transparent (d) flexible

Answer key

  1. a conductor
  2. True
  3. waterproof
  4. False
  5. False
  6. flexible
  7. False
  8. an oven glove
  9. plastic-coated cloth
  10. transparent
  11. a cooking pot handle
  12. flexible
  13. flexible
  14. electrical conductor
  15. dry wood
  16. heat insulator
  17. electrical conductor
  18. a tea flask lining
  19. an insulator
  20. a water tank
  21. copper
  22. a car seat belt
  23. steel
  24. aluminium
  25. a car windscreen
  26. False
  27. rubber
  28. cotton cloth
  29. a conductor
  30. a conductor
  31. False
  32. a boat hull
  33. glass
  34. a spectacle lens
  35. the core of a wire
  36. a switch contact
  37. waterproof
  38. a conductor
  39. copper
  40. transparent

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