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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 218 · 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 raincoat? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  2. 2.Which of these needs an electrical conductor? (a) the core of a wire (b) a magnifier lens (c) a hair band (d) a yoga mat
  3. 3.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) cotton cloth (b) graphite (c) iron (d) aluminium
  5. 5.🔍 Which is the odd one out? (a) copper (b) dry wood (c) aluminium (d) iron
  6. 6.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.Which of these needs a waterproof material? (a) a cooking pot handle (b) a tea flask lining (c) an oven glove (d) a raincoat
  8. 8.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  9. 9.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  10. 10.Which of these needs a heat insulator? (a) a yoga mat (b) a car windscreen (c) a cooking pot handle (d) a water tank
  11. 11.Which of these needs a heat insulator? (a) a boat hull (b) a tea flask lining (c) a car windscreen (d) an umbrella cover
  12. 12.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  13. 13.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  14. 14.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  15. 15.True or false: a raincoat needs a waterproof material. (a) True (b) False
  16. 16.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.True or false: a hair band needs a flexible material. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) cotton cloth (d) graphite
  19. 19.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  20. 20.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) copper (d) glass
  21. 21.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  22. 22.Which of these needs a flexible material? (a) a switch contact (b) an umbrella cover (c) a car seat belt (d) a car windscreen
  23. 23.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) plastic (d) dry wood
  24. 24.🧱 Which property matters most for a hair band? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  25. 25.🔍 Which is the odd one out? (a) glass (b) steel (c) copper (d) brass
  26. 26.Which of these needs a transparent material? (a) a raincoat (b) a spectacle lens (c) a yoga mat (d) a water tank
  27. 27.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  28. 28.🧱 Which property matters most for a switch contact? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  29. 29.True or false: an oven glove needs a waterproof material. (a) True (b) False
  30. 30.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  31. 31.Which of these needs a waterproof material? (a) a skipping rope (b) a tea flask lining (c) the core of a wire (d) a roof sheet
  32. 32.🔍 Which is the odd one out? (a) iron (b) aluminium (c) brass (d) rubber
  33. 33.🧱 Which property matters most for a water tank? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  34. 34.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) steel (d) glass
  36. 36.Which of these needs a flexible material? (a) a tea flask lining (b) a hair band (c) a car windscreen (d) a switch contact
  37. 37.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  38. 38.True or false: a roof sheet needs an electrical conductor. (a) False (b) True
  39. 39.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) heat insulator (c) flexible (d) waterproof

Answer key

  1. waterproof
  2. the core of a wire
  3. a conductor
  4. cotton cloth
  5. dry wood
  6. a conductor
  7. a raincoat
  8. True
  9. copper
  10. a cooking pot handle
  11. a tea flask lining
  12. waterproof
  13. transparent
  14. glass
  15. True
  16. an insulator
  17. True
  18. graphite
  19. waterproof
  20. copper
  21. transparent
  22. a car seat belt
  23. iron
  24. flexible
  25. glass
  26. a spectacle lens
  27. False
  28. electrical conductor
  29. False
  30. True
  31. a roof sheet
  32. rubber
  33. waterproof
  34. a conductor
  35. steel
  36. a hair band
  37. True
  38. False
  39. an insulator
  40. heat insulator

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