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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 944 · 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) cotton cloth (b) steel (c) copper (d) iron
  2. 2.True or false: a plug pin needs a flexible material. (a) True (b) False
  3. 3.Which of these needs a heat insulator? (a) a raincoat (b) the core of a wire (c) a tea flask lining (d) a car windscreen
  4. 4.Which of these needs an electrical conductor? (a) a magnifier lens (b) a roof sheet (c) the core of a wire (d) a skipping rope
  5. 5.🔍 Which is the odd one out? (a) iron (b) copper (c) brass (d) dry wood
  6. 6.True or false: a raincoat needs a flexible material. (a) True (b) False
  7. 7.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
  8. 8.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  10. 10.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  11. 11.Which of these needs a heat insulator? (a) a spectacle lens (b) a yoga mat (c) a car seat belt (d) a cooking pot handle
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for the core of an electric wire? (a) wood (b) glass (c) rubber (d) copper
  14. 14.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a waterproof material? (a) a raincoat (b) a yoga mat (c) a plug pin (d) a tea flask lining
  16. 16.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
  19. 19.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  20. 20.True or false: a window pane needs a waterproof material. (a) True (b) False
  21. 21.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) glass (b) dry wood (c) clay pottery (d) steel
  24. 24.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  25. 25.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: a skipping rope needs a flexible material. (a) False (b) True
  29. 29.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  30. 30.🔍 Which is the odd one out? (a) plastic (b) rubber (c) brass (d) glass
  31. 31.True or false: a yoga mat needs a flexible material. (a) False (b) True
  32. 32.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  33. 33.Which of these needs an electrical conductor? (a) a yoga mat (b) a magnifier lens (c) a raincoat (d) a switch contact
  34. 34.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  35. 35.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  36. 36.True or false: a window pane needs a transparent material. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) iron (b) copper (c) steel (d) clay pottery
  38. 38.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  39. 39.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  40. 40.🔍 Which is the odd one out? (a) clay pottery (b) aluminium (c) plastic (d) glass

Answer key

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

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