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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 599 · 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 of these needs a flexible material? (a) a raincoat (b) a roof sheet (c) a skipping rope (d) an oven glove
  2. 2.Which of these needs a transparent material? (a) a raincoat (b) a tea flask lining (c) a switch contact (d) a spectacle lens
  3. 3.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  4. 4.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  5. 5.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  6. 6.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a hair band needs a flexible material. (a) True (b) False
  8. 8.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  9. 9.True or false: a switch contact needs a transparent material. (a) True (b) False
  10. 10.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  11. 11.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  12. 12.True or false: a boat hull needs a flexible material. (a) True (b) False
  13. 13.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  15. 15.Which of these needs a heat insulator? (a) a magnifier lens (b) a boat hull (c) a plug pin (d) a cooking pot handle
  16. 16.True or false: an umbrella cover needs an electrical conductor. (a) False (b) True
  17. 17.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  18. 18.True or false: an oven glove needs a heat insulator. (a) False (b) True
  19. 19.🔍 Which is the odd one out? (a) plastic (b) graphite (c) copper (d) iron
  20. 20.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  21. 21.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  22. 22.🧱 Which property matters most for a roof sheet? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  23. 23.True or false: an oven glove needs a flexible material. (a) True (b) False
  24. 24.🧱 Which property matters most for a magnifier lens? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  25. 25.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) steel (d) cotton cloth
  26. 26.True or false: a skipping rope needs a flexible material. (a) False (b) True
  27. 27.True or false: a switch contact needs a heat insulator. (a) True (b) False
  28. 28.Which of these needs a waterproof material? (a) a cooking pot handle (b) a yoga mat (c) a raincoat (d) a hair band
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) cotton cloth (b) rubber (c) plastic (d) copper
  32. 32.🔍 Which is the odd one out? (a) cotton cloth (b) steel (c) copper (d) brass
  33. 33.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  34. 34.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  35. 35.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  37. 37.Which of these needs a flexible material? (a) a raincoat (b) an oven glove (c) a window pane (d) a car seat belt
  38. 38.🔍 Which is the odd one out? (a) rubber (b) graphite (c) cotton cloth (d) dry wood
  39. 39.🔍 Which is the odd one out? (a) clay pottery (b) steel (c) copper (d) graphite
  40. 40.🧱 Which property matters most for a tea flask lining? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor

Answer key

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

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