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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 619 · 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 aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.🔍 Which is the odd one out? (a) brass (b) copper (c) iron (d) plastic
  3. 3.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  4. 4.True or false: the core of a wire needs a transparent material. (a) True (b) False
  5. 5.True or false: a hair band needs a heat insulator. (a) True (b) False
  6. 6.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  7. 7.Which of these needs a waterproof material? (a) a boat hull (b) a tea flask lining (c) a yoga mat (d) a switch contact
  8. 8.True or false: a window pane needs a heat insulator. (a) True (b) False
  9. 9.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a tea flask lining (d) a car windscreen
  10. 10.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  11. 11.Which of these needs a heat insulator? (a) a roof sheet (b) an oven glove (c) a magnifier lens (d) a water tank
  12. 12.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  14. 14.Which of these needs a waterproof material? (a) a roof sheet (b) a yoga mat (c) the core of a wire (d) a magnifier lens
  15. 15.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  16. 16.🧱 Which property matters most for a hair band? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  17. 17.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  18. 18.Which of these needs a heat insulator? (a) a yoga mat (b) a window pane (c) a tea flask lining (d) a roof sheet
  19. 19.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  20. 20.🧱 Which property matters most for the core of a wire? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  21. 21.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  22. 22.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  25. 25.🔍 Which is the odd one out? (a) graphite (b) dry wood (c) rubber (d) plastic
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🔍 Which is the odd one out? (a) iron (b) steel (c) aluminium (d) cotton cloth
  28. 28.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  29. 29.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) flexible
  30. 30.True or false: a hair band needs a flexible material. (a) True (b) False
  31. 31.Which of these needs a heat insulator? (a) an umbrella cover (b) a boat hull (c) the core of a wire (d) a cooking pot handle
  32. 32.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) steel (d) rubber
  34. 34.Which of these needs a waterproof material? (a) the core of a wire (b) a skipping rope (c) a hair band (d) an umbrella cover
  35. 35.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) copper (d) rubber
  36. 36.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  37. 37.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) glass (d) cotton cloth
  38. 38.🔍 Which is the odd one out? (a) dry wood (b) copper (c) plastic (d) cotton cloth
  39. 39.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) glass (d) dry wood
  40. 40.Which of these needs a flexible material? (a) a car windscreen (b) the core of a wire (c) a car seat belt (d) a roof sheet

Answer key

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

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