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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 423 · 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 material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  2. 2.True or false: a boat hull needs a transparent material. (a) False (b) True
  3. 3.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) brass (b) dry wood (c) graphite (d) aluminium
  5. 5.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  6. 6.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  7. 7.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  8. 8.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  9. 9.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  11. 11.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  12. 12.True or false: an oven glove needs a heat insulator. (a) False (b) True
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.True or false: an umbrella cover needs a transparent material. (a) False (b) True
  15. 15.True or false: a magnifier lens needs a waterproof material. (a) True (b) False
  16. 16.Which of these needs a transparent material? (a) a window pane (b) the core of a wire (c) a boat hull (d) an oven glove
  17. 17.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  21. 21.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  22. 22.Which of these needs an electrical conductor? (a) a roof sheet (b) the core of a wire (c) a window pane (d) a car seat belt
  23. 23.🔍 Which is the odd one out? (a) rubber (b) copper (c) cotton cloth (d) plastic
  24. 24.🧱 Which property matters most for a window pane? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  25. 25.Which of these needs a transparent material? (a) the core of a wire (b) a yoga mat (c) a tea flask lining (d) a magnifier lens
  26. 26.True or false: a raincoat needs a heat insulator. (a) False (b) True
  27. 27.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  28. 28.🧱 Which property matters most for a raincoat? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  29. 29.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) steel (d) plastic
  30. 30.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) aluminium (d) glass
  31. 31.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  33. 33.True or false: a window pane needs a flexible material. (a) False (b) True
  34. 34.Which of these needs a flexible material? (a) a plug pin (b) a boat hull (c) a yoga mat (d) a window pane
  35. 35.🧱 Which property matters most for an oven glove? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  36. 36.True or false: a water tank needs an electrical conductor. (a) False (b) True
  37. 37.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  38. 38.Which of these needs a heat insulator? (a) a tea flask lining (b) a plug pin (c) a window pane (d) a car seat belt
  39. 39.🧱 Which property matters most for a plug pin? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  40. 40.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. copper
  2. False
  3. an insulator
  4. dry wood
  5. an insulator
  6. transparent
  7. True
  8. glass
  9. a conductor
  10. transparent
  11. wood or plastic
  12. True
  13. a conductor
  14. False
  15. False
  16. a window pane
  17. an insulator
  18. flexible
  19. a conductor
  20. waterproof
  21. transparent
  22. the core of a wire
  23. copper
  24. transparent
  25. a magnifier lens
  26. False
  27. False
  28. waterproof
  29. steel
  30. aluminium
  31. an insulator
  32. plastic-coated cloth
  33. False
  34. a yoga mat
  35. heat insulator
  36. False
  37. True
  38. a tea flask lining
  39. electrical conductor
  40. a conductor

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