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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 566 · 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 flexible material? (a) a spectacle lens (b) a window pane (c) a car windscreen (d) a car seat belt
  2. 2.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  5. 5.Which of these needs a flexible material? (a) a water tank (b) a tea flask lining (c) a spectacle lens (d) a skipping rope
  6. 6.Which of these needs a transparent material? (a) a plug pin (b) a window pane (c) a yoga mat (d) a roof sheet
  7. 7.🔍 Which is the odd one out? (a) glass (b) steel (c) iron (d) graphite
  8. 8.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  9. 9.🧱 Which material is best for a window pane? (a) wood (b) steel (c) glass (d) brick
  10. 10.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  11. 11.🧱 Which property matters most for the core of a wire? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  12. 12.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  13. 13.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  14. 14.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs a transparent material? (a) a cooking pot handle (b) a car seat belt (c) a boat hull (d) a magnifier lens
  16. 16.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  17. 17.Which of these needs a transparent material? (a) a skipping rope (b) an umbrella cover (c) a spectacle lens (d) a cooking pot handle
  18. 18.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  19. 19.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  20. 20.🧱 Which property matters most for a window pane? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  21. 21.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  22. 22.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) copper (b) rubber (c) graphite (d) brass
  24. 24.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  26. 26.True or false: a raincoat needs a waterproof material. (a) True (b) False
  27. 27.Which of these needs a waterproof material? (a) a hair band (b) a yoga mat (c) an umbrella cover (d) a cooking pot handle
  28. 28.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  29. 29.Which of these needs a transparent material? (a) a skipping rope (b) an umbrella cover (c) a car windscreen (d) a boat hull
  30. 30.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  32. 32.Which of these needs a waterproof material? (a) an oven glove (b) a plug pin (c) a boat hull (d) a switch contact
  33. 33.🧱 Which property matters most for a boat hull? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  34. 34.True or false: a plug pin needs a heat insulator. (a) False (b) True
  35. 35.True or false: a yoga mat needs a waterproof material. (a) True (b) False
  36. 36.Which of these needs a heat insulator? (a) a water tank (b) a boat hull (c) a cooking pot handle (d) a magnifier lens
  37. 37.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) graphite (d) plastic
  38. 38.Which of these needs an electrical conductor? (a) a raincoat (b) a yoga mat (c) the core of a wire (d) a roof sheet
  39. 39.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) copper (d) rubber
  40. 40.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent

Answer key

  1. a car seat belt
  2. steel
  3. an insulator
  4. copper
  5. a skipping rope
  6. a window pane
  7. glass
  8. False
  9. glass
  10. transparent
  11. electrical conductor
  12. False
  13. waterproof
  14. an insulator
  15. a magnifier lens
  16. True
  17. a spectacle lens
  18. plastic-coated cloth
  19. waterproof
  20. transparent
  21. True
  22. False
  23. rubber
  24. a conductor
  25. False
  26. True
  27. an umbrella cover
  28. waterproof
  29. a car windscreen
  30. an insulator
  31. True
  32. a boat hull
  33. waterproof
  34. False
  35. False
  36. a cooking pot handle
  37. graphite
  38. the core of a wire
  39. copper
  40. transparent

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