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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 754 · 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) copper (b) brass (c) graphite (d) clay pottery
  2. 2.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  3. 3.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) glass (d) plastic
  4. 4.🔍 Which is the odd one out? (a) plastic (b) copper (c) cotton cloth (d) rubber
  5. 5.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for a roof sheet? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  9. 9.🧱 Which material is best for a window pane? (a) steel (b) brick (c) glass (d) wood
  10. 10.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) glass (d) copper
  11. 11.True or false: a switch contact needs a flexible material. (a) True (b) False
  12. 12.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🔍 Which is the odd one out? (a) plastic (b) glass (c) rubber (d) steel
  16. 16.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  17. 17.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  18. 18.Which of these needs an electrical conductor? (a) a plug pin (b) a roof sheet (c) a water tank (d) an oven glove
  19. 19.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  20. 20.🧱 Which property matters most for a water tank? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  21. 21.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) plastic (d) brass
  22. 22.🔍 Which is the odd one out? (a) copper (b) steel (c) aluminium (d) rubber
  23. 23.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  24. 24.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a boat hull (c) a yoga mat (d) a switch contact
  25. 25.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  26. 26.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  27. 27.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.True or false: a hair band needs a flexible material. (a) True (b) False
  29. 29.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) brass (d) dry wood
  31. 31.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  32. 32.Which of these needs a transparent material? (a) an oven glove (b) a plug pin (c) a skipping rope (d) a car windscreen
  33. 33.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  34. 34.🧱 Which property matters most for a car seat belt? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  35. 35.Which of these needs a waterproof material? (a) a spectacle lens (b) a water tank (c) a yoga mat (d) a cooking pot handle
  36. 36.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) cotton cloth (d) plastic
  37. 37.🧱 Which property matters most for a skipping rope? (a) electrical conductor (b) waterproof (c) heat insulator (d) flexible
  38. 38.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  39. 39.Which of these needs a waterproof material? (a) a raincoat (b) a switch contact (c) a skipping rope (d) a hair band
  40. 40.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator

Answer key

  1. clay pottery
  2. False
  3. aluminium
  4. copper
  5. an insulator
  6. an insulator
  7. an insulator
  8. waterproof
  9. glass
  10. copper
  11. False
  12. a conductor
  13. an insulator
  14. an insulator
  15. steel
  16. flexible
  17. waterproof
  18. a plug pin
  19. wood or plastic
  20. waterproof
  21. plastic
  22. rubber
  23. False
  24. a switch contact
  25. plastic-coated cloth
  26. False
  27. a conductor
  28. True
  29. a conductor
  30. brass
  31. True
  32. a car windscreen
  33. transparent
  34. flexible
  35. a water tank
  36. iron
  37. flexible
  38. True
  39. a raincoat
  40. transparent

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