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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 312 · 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) clay pottery (b) graphite (c) plastic (d) rubber
  2. 2.True or false: a hair band needs a heat insulator. (a) True (b) False
  3. 3.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  4. 4.🔍 Which is the odd one out? (a) graphite (b) brass (c) cotton cloth (d) iron
  5. 5.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  6. 6.🧱 Which material is best for the bars inside concrete? (a) glass (b) rubber (c) plastic (d) steel
  7. 7.True or false: a roof sheet needs a flexible material. (a) True (b) False
  8. 8.True or false: a water tank needs a waterproof material. (a) True (b) False
  9. 9.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) electrical conductor (d) flexible
  10. 10.True or false: a window pane needs a transparent material. (a) False (b) True
  11. 11.Which of these needs a transparent material? (a) an umbrella cover (b) a window pane (c) a cooking pot handle (d) a switch contact
  12. 12.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  14. 14.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.Which of these needs a waterproof material? (a) a car seat belt (b) a magnifier lens (c) a spectacle lens (d) a water tank
  17. 17.Which of these needs a heat insulator? (a) a magnifier lens (b) a raincoat (c) a roof sheet (d) a tea flask lining
  18. 18.Which of these needs an electrical conductor? (a) a hair band (b) a spectacle lens (c) the core of a wire (d) a tea flask lining
  19. 19.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  20. 20.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  21. 21.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cotton wool (d) cardboard
  22. 22.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) aluminium (d) glass
  23. 23.Which of these needs a flexible material? (a) a plug pin (b) a hair band (c) a spectacle lens (d) a switch contact
  24. 24.True or false: a switch contact needs a heat insulator. (a) False (b) True
  25. 25.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  27. 27.🔍 Which is the odd one out? (a) aluminium (b) copper (c) iron (d) glass
  28. 28.🧱 Which property matters most for a tea flask lining? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  29. 29.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) plastic (d) copper
  30. 30.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  31. 31.Which of these needs an electrical conductor? (a) a car seat belt (b) a cooking pot handle (c) a water tank (d) a switch contact
  32. 32.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  34. 34.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  35. 35.True or false: a boat hull needs a flexible material. (a) False (b) True
  36. 36.Which of these needs an electrical conductor? (a) a spectacle lens (b) an oven glove (c) a hair band (d) a plug pin
  37. 37.True or false: a cooking pot handle needs a waterproof material. (a) False (b) True
  38. 38.Which of these needs a flexible material? (a) a switch contact (b) a water tank (c) a car seat belt (d) a boat hull
  39. 39.🧱 Which property matters most for a spectacle lens? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  40. 40.Which of these needs a transparent material? (a) a spectacle lens (b) an umbrella cover (c) a water tank (d) a skipping rope

Answer key

  1. graphite
  2. False
  3. waterproof
  4. cotton cloth
  5. glass
  6. steel
  7. False
  8. True
  9. flexible
  10. True
  11. a window pane
  12. a conductor
  13. False
  14. an insulator
  15. a conductor
  16. a water tank
  17. a tea flask lining
  18. the core of a wire
  19. True
  20. True
  21. plastic-coated cloth
  22. aluminium
  23. a hair band
  24. False
  25. an insulator
  26. waterproof
  27. glass
  28. heat insulator
  29. copper
  30. electrical conductor
  31. a switch contact
  32. a conductor
  33. waterproof
  34. heat insulator
  35. False
  36. a plug pin
  37. False
  38. a car seat belt
  39. transparent
  40. a spectacle lens

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