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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 982 · 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 is the odd one out? (a) cotton cloth (b) iron (c) brass (d) copper
  2. 2.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  3. 3.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) clay pottery (d) graphite
  4. 4.True or false: a hair band needs a heat insulator. (a) True (b) False
  5. 5.True or false: a car seat belt needs an electrical conductor. (a) False (b) True
  6. 6.Which of these needs a waterproof material? (a) a switch contact (b) a skipping rope (c) a raincoat (d) a cooking pot handle
  7. 7.🔍 Which is the odd one out? (a) dry wood (b) graphite (c) steel (d) brass
  8. 8.True or false: a yoga mat needs a flexible material. (a) False (b) True
  9. 9.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  10. 10.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  11. 11.Which of these needs a transparent material? (a) a car seat belt (b) a boat hull (c) a cooking pot handle (d) a car windscreen
  12. 12.🔍 Which is the odd one out? (a) plastic (b) brass (c) glass (d) dry wood
  13. 13.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  14. 14.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.True or false: a hair band needs a waterproof material. (a) True (b) False
  16. 16.🔍 Which is the odd one out? (a) rubber (b) steel (c) clay pottery (d) plastic
  17. 17.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  18. 18.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  19. 19.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  20. 20.🔍 Which is the odd one out? (a) glass (b) copper (c) cotton cloth (d) rubber
  21. 21.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  22. 22.True or false: a car windscreen needs a transparent material. (a) False (b) True
  23. 23.Which of these needs a flexible material? (a) a tea flask lining (b) a roof sheet (c) a raincoat (d) a car seat belt
  24. 24.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) copper (d) rubber
  25. 25.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  26. 26.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  27. 27.Which of these needs a transparent material? (a) a plug pin (b) a boat hull (c) a window pane (d) an oven glove
  28. 28.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  29. 29.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.Which of these needs a heat insulator? (a) a spectacle lens (b) the core of a wire (c) a water tank (d) an oven glove
  31. 31.🔍 Which is the odd one out? (a) iron (b) aluminium (c) clay pottery (d) copper
  32. 32.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  33. 33.🧱 Which property matters most for a water tank? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  34. 34.True or false: a spectacle lens needs an electrical conductor. (a) False (b) True
  35. 35.True or false: a hair band needs a flexible material. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) glass (b) brass (c) aluminium (d) copper
  37. 37.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) heat insulator (d) waterproof
  38. 38.🧱 Which property matters most for a spectacle lens? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  39. 39.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  40. 40.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) transparent (d) waterproof

Answer key

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

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