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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 617 · 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 clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.Which of these needs a waterproof material? (a) a switch contact (b) a cooking pot handle (c) a plug pin (d) a roof sheet
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.Which of these needs a transparent material? (a) a skipping rope (b) a water tank (c) a car windscreen (d) a switch contact
  5. 5.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  6. 6.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  7. 7.Which of these needs a transparent material? (a) a window pane (b) a raincoat (c) a switch contact (d) a yoga mat
  8. 8.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  9. 9.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs a transparent material? (a) a raincoat (b) an umbrella cover (c) a magnifier lens (d) a plug pin
  11. 11.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  12. 12.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) graphite (d) rubber
  13. 13.Which of these needs a flexible material? (a) an oven glove (b) a raincoat (c) a yoga mat (d) a magnifier lens
  14. 14.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  15. 15.🧱 Which property matters most for a water tank? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  16. 16.Which of these needs a waterproof material? (a) a window pane (b) a raincoat (c) a magnifier lens (d) a hair band
  17. 17.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  21. 21.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  23. 23.🧱 Which property matters most for a car windscreen? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  24. 24.🧱 Which property matters most for a switch contact? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  25. 25.🧱 Which property matters most for the core of a wire? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  26. 26.🧱 Which property matters most for a car seat belt? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  27. 27.True or false: a boat hull needs a flexible material. (a) False (b) True
  28. 28.🔍 Which is the odd one out? (a) rubber (b) brass (c) plastic (d) cotton cloth
  29. 29.🔍 Which is the odd one out? (a) clay pottery (b) cotton cloth (c) dry wood (d) copper
  30. 30.🔍 Which is the odd one out? (a) cotton cloth (b) clay pottery (c) plastic (d) iron
  31. 31.🔍 Which is the odd one out? (a) iron (b) aluminium (c) brass (d) plastic
  32. 32.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  33. 33.True or false: a yoga mat needs a flexible material. (a) False (b) True
  34. 34.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  35. 35.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  36. 36.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  37. 37.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  38. 38.🧱 Which property matters most for a boat hull? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  39. 39.Which of these needs a flexible material? (a) a plug pin (b) an oven glove (c) a skipping rope (d) a tea flask lining
  40. 40.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. an insulator
  2. a roof sheet
  3. an insulator
  4. a car windscreen
  5. True
  6. steel
  7. a window pane
  8. transparent
  9. a conductor
  10. a magnifier lens
  11. glass
  12. graphite
  13. a yoga mat
  14. copper
  15. waterproof
  16. a raincoat
  17. a conductor
  18. a conductor
  19. a conductor
  20. heat insulator
  21. a conductor
  22. wood or plastic
  23. transparent
  24. electrical conductor
  25. electrical conductor
  26. flexible
  27. False
  28. brass
  29. copper
  30. iron
  31. plastic
  32. waterproof
  33. True
  34. electrical conductor
  35. plastic-coated cloth
  36. an insulator
  37. False
  38. waterproof
  39. a skipping rope
  40. an insulator

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