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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 541 · 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) copper (b) glass (c) rubber (d) wood
  2. 2.True or false: a car seat belt needs a transparent material. (a) True (b) False
  3. 3.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.True or false: a roof sheet needs a transparent material. (a) False (b) True
  5. 5.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
  6. 6.🧱 Which property matters most for a window pane? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  7. 7.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  10. 10.True or false: a window pane needs a transparent material. (a) False (b) True
  11. 11.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  12. 12.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  13. 13.Which of these needs a heat insulator? (a) a skipping rope (b) a raincoat (c) a cooking pot handle (d) a car seat belt
  14. 14.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  15. 15.🧱 Which property matters most for a yoga mat? (a) transparent (b) waterproof (c) flexible (d) heat insulator
  16. 16.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.🧱 Which property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  18. 18.True or false: a skipping rope needs a transparent material. (a) True (b) False
  19. 19.True or false: a water tank needs a transparent material. (a) False (b) True
  20. 20.True or false: a switch contact needs a flexible material. (a) False (b) True
  21. 21.Which of these needs a flexible material? (a) a magnifier lens (b) a skipping rope (c) a raincoat (d) a water tank
  22. 22.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) graphite (d) brass
  24. 24.True or false: a yoga mat needs a transparent material. (a) True (b) False
  25. 25.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) glass (b) graphite (c) steel (d) copper
  28. 28.Which of these needs a flexible material? (a) a car seat belt (b) a boat hull (c) a window pane (d) a tea flask lining
  29. 29.True or false: a magnifier lens needs a waterproof material. (a) False (b) True
  30. 30.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  31. 31.Which of these needs a flexible material? (a) a hair band (b) a window pane (c) the core of a wire (d) an umbrella cover
  32. 32.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  33. 33.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  34. 34.Which of these needs an electrical conductor? (a) a magnifier lens (b) the core of a wire (c) a water tank (d) a yoga mat
  35. 35.True or false: a hair band needs a heat insulator. (a) False (b) True
  36. 36.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  37. 37.Which of these needs a waterproof material? (a) a plug pin (b) a hair band (c) a spectacle lens (d) a raincoat
  38. 38.True or false: a car seat belt needs a waterproof material. (a) False (b) True
  39. 39.True or false: a hair band needs a flexible material. (a) True (b) False
  40. 40.🧱 Which property matters most for a tea flask lining? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator

Answer key

  1. copper
  2. False
  3. an insulator
  4. False
  5. steel
  6. transparent
  7. an insulator
  8. a conductor
  9. electrical conductor
  10. True
  11. transparent
  12. True
  13. a cooking pot handle
  14. False
  15. flexible
  16. an insulator
  17. flexible
  18. False
  19. False
  20. False
  21. a skipping rope
  22. an insulator
  23. cotton cloth
  24. False
  25. a conductor
  26. False
  27. glass
  28. a car seat belt
  29. False
  30. heat insulator
  31. a hair band
  32. transparent
  33. False
  34. the core of a wire
  35. False
  36. wood or plastic
  37. a raincoat
  38. False
  39. True
  40. heat insulator

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