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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 115 · 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) steel (b) cotton cloth (c) dry wood (d) rubber
  2. 2.True or false: a window pane needs a heat insulator. (a) True (b) False
  3. 3.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  4. 4.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  5. 5.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
  6. 6.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  7. 7.True or false: a boat hull needs a waterproof material. (a) False (b) True
  8. 8.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  9. 9.🧱 Which material is best for the core of an electric wire? (a) rubber (b) glass (c) copper (d) wood
  10. 10.Which of these needs a flexible material? (a) a car windscreen (b) an umbrella cover (c) a yoga mat (d) a switch contact
  11. 11.Which of these needs a heat insulator? (a) a plug pin (b) an oven glove (c) a window pane (d) a spectacle lens
  12. 12.🧱 Which property matters most for an oven glove? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  13. 13.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  14. 14.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  15. 15.🔍 Which is the odd one out? (a) iron (b) aluminium (c) cotton cloth (d) graphite
  16. 16.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  17. 17.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  18. 18.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs a heat insulator? (a) a car seat belt (b) the core of a wire (c) a spectacle lens (d) a tea flask lining
  20. 20.Which of these needs an electrical conductor? (a) the core of a wire (b) a boat hull (c) a magnifier lens (d) a car windscreen
  21. 21.Which of these needs a heat insulator? (a) a raincoat (b) a spectacle lens (c) a cooking pot handle (d) an umbrella cover
  22. 22.True or false: a car seat belt needs a flexible material. (a) True (b) False
  23. 23.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a hair band needs a flexible material. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) plastic (b) brass (c) clay pottery (d) glass
  27. 27.Which of these needs a flexible material? (a) a tea flask lining (b) a hair band (c) a spectacle lens (d) a magnifier lens
  28. 28.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🔍 Which is the odd one out? (a) copper (b) graphite (c) iron (d) rubber
  30. 30.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs a transparent material? (a) a water tank (b) a skipping rope (c) an umbrella cover (d) a magnifier lens
  32. 32.🧱 Which property matters most for a raincoat? (a) waterproof (b) electrical conductor (c) flexible (d) heat insulator
  33. 33.True or false: an oven glove needs a flexible material. (a) False (b) True
  34. 34.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) aluminium (d) rubber
  35. 35.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  36. 36.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  37. 37.True or false: a plug pin needs a transparent material. (a) False (b) True
  38. 38.Which of these needs an electrical conductor? (a) a water tank (b) a car windscreen (c) a magnifier lens (d) a plug pin
  39. 39.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  40. 40.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent

Answer key

  1. steel
  2. False
  3. transparent
  4. heat insulator
  5. flexible
  6. True
  7. True
  8. False
  9. copper
  10. a yoga mat
  11. an oven glove
  12. heat insulator
  13. True
  14. steel
  15. cotton cloth
  16. glass
  17. transparent
  18. a conductor
  19. a tea flask lining
  20. the core of a wire
  21. a cooking pot handle
  22. True
  23. a conductor
  24. a conductor
  25. True
  26. brass
  27. a hair band
  28. an insulator
  29. rubber
  30. a conductor
  31. a magnifier lens
  32. waterproof
  33. False
  34. aluminium
  35. an insulator
  36. False
  37. False
  38. a plug pin
  39. flexible
  40. waterproof

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