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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 291 · 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 plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.Which of these needs a transparent material? (a) a roof sheet (b) a spectacle lens (c) an umbrella cover (d) a water tank
  3. 3.Which of these needs a waterproof material? (a) a yoga mat (b) a skipping rope (c) a roof sheet (d) a hair band
  4. 4.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) copper (d) aluminium
  5. 5.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  6. 6.🔍 Which is the odd one out? (a) plastic (b) rubber (c) cotton cloth (d) iron
  7. 7.Which of these needs an electrical conductor? (a) a raincoat (b) a plug pin (c) a hair band (d) a window pane
  8. 8.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  9. 9.🔍 Which is the odd one out? (a) plastic (b) brass (c) iron (d) graphite
  10. 10.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.True or false: a cooking pot handle needs a flexible material. (a) False (b) True
  12. 12.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) brass (d) plastic
  13. 13.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.True or false: a hair band needs a heat insulator. (a) False (b) True
  17. 17.Which of these needs a transparent material? (a) an oven glove (b) a boat hull (c) a magnifier lens (d) a skipping rope
  18. 18.🧱 Which property matters most for a spectacle lens? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  19. 19.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) copper (d) rubber
  20. 20.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  21. 21.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  22. 22.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  23. 23.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  24. 24.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) glass (d) wood
  25. 25.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.Which of these needs a flexible material? (a) an oven glove (b) a car seat belt (c) a water tank (d) a tea flask lining
  27. 27.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) heat insulator (d) electrical conductor
  28. 28.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  29. 29.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) iron (d) steel
  30. 30.🔍 Which is the odd one out? (a) rubber (b) graphite (c) clay pottery (d) plastic
  31. 31.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.Which of these needs a flexible material? (a) a boat hull (b) a plug pin (c) a roof sheet (d) a skipping rope
  33. 33.🔍 Which is the odd one out? (a) brass (b) cotton cloth (c) steel (d) iron
  34. 34.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  35. 35.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  36. 36.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) steel (b) clay pottery (c) rubber (d) plastic
  38. 38.Which of these needs a heat insulator? (a) a cooking pot handle (b) a water tank (c) a spectacle lens (d) a roof sheet
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  40. 40.Which of these needs a heat insulator? (a) a yoga mat (b) a tea flask lining (c) a skipping rope (d) the core of a wire

Answer key

  1. an insulator
  2. a spectacle lens
  3. a roof sheet
  4. wood or plastic
  5. False
  6. iron
  7. a plug pin
  8. glass
  9. plastic
  10. a conductor
  11. False
  12. brass
  13. an insulator
  14. an insulator
  15. a conductor
  16. False
  17. a magnifier lens
  18. transparent
  19. copper
  20. waterproof
  21. transparent
  22. True
  23. waterproof
  24. copper
  25. a conductor
  26. a car seat belt
  27. electrical conductor
  28. flexible
  29. clay pottery
  30. graphite
  31. a conductor
  32. a skipping rope
  33. cotton cloth
  34. False
  35. steel
  36. False
  37. steel
  38. a cooking pot handle
  39. an insulator
  40. a tea flask lining

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