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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 485 · 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 is the odd one out? (a) brass (b) iron (c) steel (d) clay pottery
  2. 2.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.Which of these needs a waterproof material? (a) a raincoat (b) a spectacle lens (c) a magnifier lens (d) a switch contact
  4. 4.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) electrical conductor (d) transparent
  5. 5.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  6. 6.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  7. 7.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.Which of these needs a waterproof material? (a) a spectacle lens (b) a cooking pot handle (c) a boat hull (d) an oven glove
  9. 9.Which of these needs a heat insulator? (a) a tea flask lining (b) a spectacle lens (c) a hair band (d) a skipping rope
  10. 10.Which of these needs an electrical conductor? (a) a skipping rope (b) a roof sheet (c) a water tank (d) the core of a wire
  11. 11.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.True or false: a window pane needs a transparent material. (a) False (b) True
  13. 13.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) steel (b) aluminium (c) brass (d) rubber
  15. 15.True or false: a water tank needs a flexible material. (a) True (b) False
  16. 16.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  18. 18.🔍 Which is the odd one out? (a) brass (b) steel (c) cotton cloth (d) copper
  19. 19.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  20. 20.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) waterproof (d) electrical conductor
  21. 21.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  22. 22.True or false: an oven glove needs a heat insulator. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) brass (b) aluminium (c) graphite (d) glass
  24. 24.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  25. 25.Which of these needs a waterproof material? (a) a hair band (b) a tea flask lining (c) a yoga mat (d) a water tank
  26. 26.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) plastic (d) copper
  27. 27.🧱 Which property matters most for a boat hull? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  28. 28.True or false: a hair band needs a heat insulator. (a) False (b) True
  29. 29.🔍 Which is the odd one out? (a) copper (b) dry wood (c) steel (d) aluminium
  30. 30.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  31. 31.Which of these needs a waterproof material? (a) a spectacle lens (b) a magnifier lens (c) a cooking pot handle (d) an umbrella cover
  32. 32.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🔍 Which is the odd one out? (a) clay pottery (b) dry wood (c) brass (d) rubber
  34. 34.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  36. 36.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  37. 37.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  38. 38.🔍 Which is the odd one out? (a) graphite (b) rubber (c) dry wood (d) glass
  39. 39.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  40. 40.True or false: a yoga mat needs a flexible material. (a) False (b) True

Answer key

  1. clay pottery
  2. a conductor
  3. a raincoat
  4. waterproof
  5. wood or plastic
  6. transparent
  7. an insulator
  8. a boat hull
  9. a tea flask lining
  10. the core of a wire
  11. a conductor
  12. True
  13. False
  14. rubber
  15. False
  16. an insulator
  17. flexible
  18. cotton cloth
  19. True
  20. waterproof
  21. transparent
  22. True
  23. glass
  24. transparent
  25. a water tank
  26. copper
  27. waterproof
  28. False
  29. dry wood
  30. copper
  31. an umbrella cover
  32. a conductor
  33. brass
  34. an insulator
  35. False
  36. heat insulator
  37. steel
  38. graphite
  39. plastic-coated cloth
  40. True

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