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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 925 · 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.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🔍 Which is the odd one out? (a) iron (b) glass (c) clay pottery (d) rubber
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  5. 5.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  6. 6.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  7. 7.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  8. 8.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.Which of these needs a waterproof material? (a) a spectacle lens (b) a water tank (c) a skipping rope (d) an oven glove
  10. 10.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  12. 12.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  13. 13.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  14. 14.True or false: a water tank needs a transparent material. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) iron (d) copper
  16. 16.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
  18. 18.Which of these needs a waterproof material? (a) a cooking pot handle (b) a raincoat (c) a skipping rope (d) a hair band
  19. 19.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cotton wool (c) paper (d) cardboard
  20. 20.🔍 Which is the odd one out? (a) plastic (b) brass (c) cotton cloth (d) clay pottery
  21. 21.Which of these needs an electrical conductor? (a) a cooking pot handle (b) a spectacle lens (c) the core of a wire (d) a car windscreen
  22. 22.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  23. 23.Which of these needs a flexible material? (a) an oven glove (b) a magnifier lens (c) a hair band (d) a spectacle lens
  24. 24.🧱 Which property matters most for a car seat belt? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  25. 25.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  26. 26.🧱 Which property matters most for a water tank? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  27. 27.🔍 Which is the odd one out? (a) rubber (b) steel (c) aluminium (d) brass
  28. 28.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  29. 29.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.True or false: an oven glove needs a heat insulator. (a) True (b) False
  31. 31.Which of these needs a waterproof material? (a) a hair band (b) a skipping rope (c) a roof sheet (d) the core of a wire
  32. 32.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) wood (d) copper
  34. 34.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) graphite (d) glass
  35. 35.🔍 Which is the odd one out? (a) iron (b) copper (c) glass (d) aluminium
  36. 36.True or false: a window pane needs a transparent material. (a) True (b) False
  37. 37.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  38. 38.True or false: an oven glove needs a waterproof material. (a) True (b) False
  39. 39.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  40. 40.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof

Answer key

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

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