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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 206 · 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 magnifier lens? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  2. 2.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  3. 3.True or false: a plug pin needs a transparent material. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) glass (d) copper
  5. 5.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  6. 6.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  7. 7.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  8. 8.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these needs a waterproof material? (a) an umbrella cover (b) a cooking pot handle (c) the core of a wire (d) a skipping rope
  10. 10.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  11. 11.True or false: a car seat belt needs a transparent material. (a) False (b) True
  12. 12.🔍 Which is the odd one out? (a) copper (b) brass (c) plastic (d) steel
  13. 13.True or false: a water tank needs a transparent material. (a) True (b) False
  14. 14.True or false: a skipping rope needs a flexible material. (a) False (b) True
  15. 15.Which of these needs a transparent material? (a) a cooking pot handle (b) a boat hull (c) a raincoat (d) a magnifier lens
  16. 16.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  17. 17.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) aluminium (d) rubber
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs an electrical conductor? (a) a skipping rope (b) a roof sheet (c) a plug pin (d) a window pane
  20. 20.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  21. 21.🔍 Which is the odd one out? (a) steel (b) graphite (c) aluminium (d) clay pottery
  22. 22.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) clay pottery (d) iron
  24. 24.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  26. 26.🧱 Which property matters most for a roof sheet? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  27. 27.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  28. 28.Which of these needs a heat insulator? (a) a yoga mat (b) a magnifier lens (c) a roof sheet (d) an oven glove
  29. 29.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) glass (b) rubber (c) steel (d) plastic
  31. 31.Which of these needs an electrical conductor? (a) a raincoat (b) a tea flask lining (c) an umbrella cover (d) the core of a wire
  32. 32.🔍 Which is the odd one out? (a) copper (b) aluminium (c) glass (d) brass
  33. 33.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) iron (d) brass
  35. 35.Which of these needs a waterproof material? (a) a yoga mat (b) a roof sheet (c) an oven glove (d) a spectacle lens
  36. 36.Which of these needs a flexible material? (a) a yoga mat (b) a cooking pot handle (c) a magnifier lens (d) a boat hull
  37. 37.True or false: a skipping rope needs a transparent material. (a) False (b) True
  38. 38.True or false: a roof sheet needs a heat insulator. (a) False (b) True
  39. 39.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.True or false: a raincoat needs a heat insulator. (a) True (b) False

Answer key

  1. transparent
  2. steel
  3. False
  4. copper
  5. plastic-coated cloth
  6. True
  7. True
  8. a conductor
  9. an umbrella cover
  10. False
  11. False
  12. plastic
  13. False
  14. True
  15. a magnifier lens
  16. electrical conductor
  17. aluminium
  18. a conductor
  19. a plug pin
  20. waterproof
  21. clay pottery
  22. an insulator
  23. iron
  24. an insulator
  25. flexible
  26. waterproof
  27. False
  28. an oven glove
  29. True
  30. steel
  31. the core of a wire
  32. glass
  33. True
  34. cotton cloth
  35. a roof sheet
  36. a yoga mat
  37. False
  38. False
  39. a conductor
  40. False

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