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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 875 · 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 water tank needs a waterproof material. (a) False (b) True
  2. 2.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  3. 3.🔍 Which is the odd one out? (a) iron (b) graphite (c) dry wood (d) brass
  4. 4.🧱 Which property matters most for a magnifier lens? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  5. 5.Which of these needs a flexible material? (a) the core of a wire (b) a roof sheet (c) a yoga mat (d) a boat hull
  6. 6.Which of these needs an electrical conductor? (a) a spectacle lens (b) the core of a wire (c) a roof sheet (d) a tea flask lining
  7. 7.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  8. 8.True or false: a hair band needs a flexible material. (a) False (b) True
  9. 9.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  10. 10.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  11. 11.True or false: a yoga mat needs a transparent material. (a) False (b) True
  12. 12.Which of these needs a heat insulator? (a) a cooking pot handle (b) a water tank (c) a spectacle lens (d) a plug pin
  13. 13.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  14. 14.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) plastic (d) graphite
  15. 15.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  16. 16.Which of these needs a flexible material? (a) a car windscreen (b) a boat hull (c) the core of a wire (d) a skipping rope
  17. 17.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🔍 Which is the odd one out? (a) rubber (b) glass (c) cotton cloth (d) brass
  21. 21.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.True or false: a window pane needs a heat insulator. (a) False (b) True
  24. 24.🧱 Which property matters most for a raincoat? (a) transparent (b) waterproof (c) heat insulator (d) electrical conductor
  25. 25.True or false: a raincoat needs a transparent material. (a) False (b) True
  26. 26.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) dry wood (d) rubber
  29. 29.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  30. 30.🔍 Which is the odd one out? (a) graphite (b) rubber (c) steel (d) copper
  31. 31.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  32. 32.Which of these needs a waterproof material? (a) a cooking pot handle (b) a hair band (c) a water tank (d) a skipping rope
  33. 33.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.True or false: the core of a wire needs a flexible material. (a) True (b) False
  35. 35.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a water tank needs a flexible material. (a) True (b) False
  37. 37.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  38. 38.Which of these needs a transparent material? (a) an umbrella cover (b) a raincoat (c) a water tank (d) a magnifier lens
  39. 39.🔍 Which is the odd one out? (a) steel (b) copper (c) graphite (d) clay pottery
  40. 40.True or false: a boat hull needs a waterproof material. (a) False (b) True

Answer key

  1. True
  2. flexible
  3. dry wood
  4. transparent
  5. a yoga mat
  6. the core of a wire
  7. copper
  8. True
  9. electrical conductor
  10. flexible
  11. False
  12. a cooking pot handle
  13. glass
  14. graphite
  15. transparent
  16. a skipping rope
  17. a conductor
  18. a conductor
  19. an insulator
  20. brass
  21. an insulator
  22. an insulator
  23. False
  24. waterproof
  25. False
  26. an insulator
  27. False
  28. aluminium
  29. waterproof
  30. rubber
  31. steel
  32. a water tank
  33. an insulator
  34. False
  35. a conductor
  36. False
  37. wood or plastic
  38. a magnifier lens
  39. clay pottery
  40. True

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