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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 141 · 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 magnifier lens needs a waterproof material. (a) True (b) False
  2. 2.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  3. 3.🔍 Which is the odd one out? (a) dry wood (b) brass (c) iron (d) aluminium
  4. 4.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  5. 5.🧱 Which property matters most for a car windscreen? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  6. 6.True or false: a switch contact needs a flexible material. (a) True (b) False
  7. 7.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  8. 8.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) glass (d) plastic
  9. 9.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  10. 10.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) clay pottery (b) graphite (c) copper (d) steel
  14. 14.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) iron (d) cotton cloth
  15. 15.🔍 Which is the odd one out? (a) cotton cloth (b) aluminium (c) steel (d) brass
  16. 16.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  17. 17.Which of these needs a flexible material? (a) a window pane (b) a boat hull (c) an umbrella cover (d) a yoga mat
  18. 18.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.Which of these needs a heat insulator? (a) a magnifier lens (b) a window pane (c) a tea flask lining (d) a car seat belt
  20. 20.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  22. 22.True or false: a boat hull needs a flexible material. (a) True (b) False
  23. 23.🧱 Which property matters most for a plug pin? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  24. 24.True or false: a switch contact needs a heat insulator. (a) False (b) True
  25. 25.🧱 Which property matters most for an oven glove? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
  28. 28.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  29. 29.True or false: a water tank needs a transparent material. (a) False (b) True
  30. 30.Which of these needs a heat insulator? (a) a boat hull (b) a hair band (c) a cooking pot handle (d) a spectacle lens
  31. 31.True or false: a skipping rope needs a flexible material. (a) False (b) True
  32. 32.Which of these needs an electrical conductor? (a) an oven glove (b) a skipping rope (c) a switch contact (d) a yoga mat
  33. 33.🔍 Which is the odd one out? (a) graphite (b) glass (c) clay pottery (d) cotton cloth
  34. 34.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.True or false: a boat hull needs a waterproof material. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) rubber (b) plastic (c) clay pottery (d) copper
  37. 37.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  38. 38.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) wood or plastic (d) iron
  39. 39.True or false: a raincoat needs a waterproof material. (a) True (b) False
  40. 40.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof

Answer key

  1. False
  2. waterproof
  3. dry wood
  4. False
  5. transparent
  6. False
  7. copper
  8. aluminium
  9. electrical conductor
  10. an insulator
  11. an insulator
  12. False
  13. clay pottery
  14. iron
  15. cotton cloth
  16. transparent
  17. a yoga mat
  18. a conductor
  19. a tea flask lining
  20. an insulator
  21. False
  22. False
  23. electrical conductor
  24. False
  25. heat insulator
  26. a conductor
  27. plastic-coated cloth
  28. flexible
  29. False
  30. a cooking pot handle
  31. True
  32. a switch contact
  33. graphite
  34. a conductor
  35. True
  36. copper
  37. glass
  38. wood or plastic
  39. True
  40. waterproof

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