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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 863 · 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 a window pane? (a) wood (b) brick (c) glass (d) steel
  2. 2.Which of these needs a transparent material? (a) a car windscreen (b) a hair band (c) a skipping rope (d) a tea flask lining
  3. 3.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  4. 4.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  5. 5.Which of these needs a flexible material? (a) a yoga mat (b) a tea flask lining (c) a boat hull (d) a spectacle lens
  6. 6.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) iron (d) aluminium
  8. 8.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  9. 9.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  10. 10.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.Which of these needs a waterproof material? (a) an oven glove (b) a plug pin (c) a hair band (d) a raincoat
  14. 14.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  15. 15.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  17. 17.Which of these needs a flexible material? (a) a tea flask lining (b) a water tank (c) an umbrella cover (d) a hair band
  18. 18.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) rubber (d) iron
  19. 19.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  20. 20.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs a flexible material? (a) a roof sheet (b) a skipping rope (c) an oven glove (d) a plug pin
  22. 22.🧱 Which property matters most for a skipping rope? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  23. 23.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  25. 25.Which of these needs a transparent material? (a) a yoga mat (b) a plug pin (c) a window pane (d) the core of a wire
  26. 26.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) glass (d) brass
  27. 27.🧱 Which property matters most for a yoga mat? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  28. 28.🧱 Which property matters most for a plug pin? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  29. 29.True or false: a car windscreen needs a transparent material. (a) False (b) True
  30. 30.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🔍 Which is the odd one out? (a) steel (b) glass (c) rubber (d) dry wood
  32. 32.True or false: a car seat belt needs a flexible material. (a) False (b) True
  33. 33.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) heat insulator (d) transparent
  34. 34.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.Which of these needs a waterproof material? (a) a hair band (b) a spectacle lens (c) a roof sheet (d) a plug pin
  36. 36.🔍 Which is the odd one out? (a) copper (b) steel (c) aluminium (d) plastic
  37. 37.🧱 Which property matters most for a car seat belt? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  38. 38.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) waterproof (d) heat insulator
  39. 39.True or false: a boat hull needs a waterproof material. (a) False (b) True
  40. 40.True or false: a yoga mat needs a transparent material. (a) True (b) False

Answer key

  1. glass
  2. a car windscreen
  3. True
  4. waterproof
  5. a yoga mat
  6. a conductor
  7. wood or plastic
  8. transparent
  9. steel
  10. a conductor
  11. waterproof
  12. a conductor
  13. a raincoat
  14. True
  15. an insulator
  16. True
  17. a hair band
  18. iron
  19. True
  20. an insulator
  21. a skipping rope
  22. flexible
  23. a conductor
  24. electrical conductor
  25. a window pane
  26. brass
  27. flexible
  28. electrical conductor
  29. True
  30. an insulator
  31. steel
  32. True
  33. transparent
  34. an insulator
  35. a roof sheet
  36. plastic
  37. flexible
  38. waterproof
  39. True
  40. False

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