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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 616 · 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.True or false: a tea flask lining needs a waterproof material. (a) False (b) True
  2. 2.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  3. 3.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  4. 4.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  6. 6.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  8. 8.True or false: a car seat belt needs a transparent material. (a) False (b) True
  9. 9.Which of these needs a transparent material? (a) a boat hull (b) a car seat belt (c) a spectacle lens (d) an umbrella cover
  10. 10.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which property matters most for a switch contact? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  12. 12.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  13. 13.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) wood (d) rubber
  14. 14.True or false: a raincoat needs a heat insulator. (a) True (b) False
  15. 15.🔍 Which is the odd one out? (a) copper (b) steel (c) plastic (d) brass
  16. 16.🧱 Which property matters most for a window pane? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  17. 17.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  18. 18.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
  19. 19.Which of these needs a flexible material? (a) a boat hull (b) a raincoat (c) a yoga mat (d) a window pane
  20. 20.Which of these needs a flexible material? (a) a spectacle lens (b) a roof sheet (c) a water tank (d) a hair band
  21. 21.Which of these needs a waterproof material? (a) a window pane (b) an umbrella cover (c) a car windscreen (d) an oven glove
  22. 22.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  23. 23.🧱 Which property matters most for a hair band? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  24. 24.🔍 Which is the odd one out? (a) graphite (b) clay pottery (c) copper (d) steel
  25. 25.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.Which of these needs a heat insulator? (a) an oven glove (b) a car windscreen (c) a skipping rope (d) a water tank
  27. 27.🧱 Which property matters most for a raincoat? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  28. 28.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  30. 30.Which of these needs a waterproof material? (a) a roof sheet (b) a car seat belt (c) a window pane (d) a cooking pot handle
  31. 31.🧱 Which property matters most for an umbrella cover? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  32. 32.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  33. 33.Which of these needs a flexible material? (a) a roof sheet (b) a window pane (c) a water tank (d) a skipping rope
  34. 34.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) glass (d) copper
  36. 36.Which of these needs a waterproof material? (a) a spectacle lens (b) a raincoat (c) a switch contact (d) a tea flask lining
  37. 37.🔍 Which is the odd one out? (a) iron (b) rubber (c) aluminium (d) brass
  38. 38.True or false: an oven glove needs an electrical conductor. (a) True (b) False
  39. 39.Which of these needs a heat insulator? (a) a cooking pot handle (b) a spectacle lens (c) the core of a wire (d) a car seat belt
  40. 40.True or false: a window pane needs a transparent material. (a) True (b) False

Answer key

  1. False
  2. heat insulator
  3. False
  4. an insulator
  5. True
  6. an insulator
  7. False
  8. False
  9. a spectacle lens
  10. a conductor
  11. electrical conductor
  12. flexible
  13. copper
  14. False
  15. plastic
  16. transparent
  17. True
  18. plastic-coated cloth
  19. a yoga mat
  20. a hair band
  21. an umbrella cover
  22. waterproof
  23. flexible
  24. clay pottery
  25. an insulator
  26. an oven glove
  27. waterproof
  28. an insulator
  29. True
  30. a roof sheet
  31. waterproof
  32. True
  33. a skipping rope
  34. an insulator
  35. copper
  36. a raincoat
  37. rubber
  38. False
  39. a cooking pot handle
  40. True

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