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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 585 · 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 of these needs a heat insulator? (a) a window pane (b) a magnifier lens (c) a cooking pot handle (d) a boat hull
  2. 2.Which of these needs an electrical conductor? (a) a roof sheet (b) a boat hull (c) a switch contact (d) a tea flask lining
  3. 3.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) brass (d) glass
  4. 4.🔍 Which is the odd one out? (a) copper (b) dry wood (c) plastic (d) rubber
  5. 5.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  7. 7.🔍 Which is the odd one out? (a) aluminium (b) brass (c) dry wood (d) graphite
  8. 8.🔍 Which is the odd one out? (a) glass (b) steel (c) dry wood (d) rubber
  9. 9.Which of these needs a waterproof material? (a) a cooking pot handle (b) a window pane (c) a yoga mat (d) a water tank
  10. 10.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) glass (b) rubber (c) aluminium (d) dry wood
  12. 12.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a heat insulator? (a) an umbrella cover (b) a window pane (c) an oven glove (d) a water tank
  15. 15.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  16. 16.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) clay pottery (d) cotton cloth
  17. 17.True or false: a boat hull needs a waterproof material. (a) True (b) False
  18. 18.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  20. 20.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  21. 21.🔍 Which is the odd one out? (a) glass (b) graphite (c) brass (d) copper
  22. 22.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  24. 24.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  25. 25.Which of these needs a flexible material? (a) a switch contact (b) a boat hull (c) a hair band (d) an oven glove
  26. 26.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  27. 27.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  28. 28.True or false: a window pane needs a waterproof material. (a) True (b) False
  29. 29.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  31. 31.Which of these needs a flexible material? (a) a water tank (b) a raincoat (c) a boat hull (d) a car seat belt
  32. 32.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  35. 35.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  36. 36.Which of these needs a waterproof material? (a) a spectacle lens (b) an oven glove (c) a window pane (d) an umbrella cover
  37. 37.🔍 Which is the odd one out? (a) glass (b) iron (c) rubber (d) dry wood
  38. 38.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.True or false: an umbrella cover needs an electrical conductor. (a) True (b) False
  40. 40.True or false: the core of a wire needs a heat insulator. (a) False (b) True

Answer key

  1. a cooking pot handle
  2. a switch contact
  3. brass
  4. copper
  5. a conductor
  6. waterproof
  7. dry wood
  8. steel
  9. a water tank
  10. True
  11. aluminium
  12. a conductor
  13. a conductor
  14. an oven glove
  15. flexible
  16. graphite
  17. True
  18. an insulator
  19. heat insulator
  20. glass
  21. glass
  22. a conductor
  23. True
  24. False
  25. a hair band
  26. electrical conductor
  27. waterproof
  28. False
  29. an insulator
  30. plastic-coated cloth
  31. a car seat belt
  32. an insulator
  33. an insulator
  34. steel
  35. False
  36. an umbrella cover
  37. iron
  38. an insulator
  39. False
  40. False

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