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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 521 · 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.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  2. 2.Which of these needs a transparent material? (a) a car windscreen (b) an umbrella cover (c) a tea flask lining (d) a boat hull
  3. 3.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) aluminium (d) glass
  5. 5.Which of these needs an electrical conductor? (a) a tea flask lining (b) a magnifier lens (c) a window pane (d) a plug pin
  6. 6.True or false: an oven glove needs a transparent material. (a) True (b) False
  7. 7.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  8. 8.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  9. 9.Which of these needs a flexible material? (a) a hair band (b) a raincoat (c) a switch contact (d) a roof sheet
  10. 10.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) rubber (d) glass
  11. 11.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  12. 12.Which of these needs a heat insulator? (a) a skipping rope (b) a hair band (c) the core of a wire (d) a tea flask lining
  13. 13.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) transparent (d) waterproof
  14. 14.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) plastic (d) brass
  15. 15.🧱 Which property matters most for a car seat belt? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  16. 16.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) glass (d) copper
  17. 17.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) flexible (d) electrical conductor
  18. 18.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  19. 19.Which of these needs a heat insulator? (a) a water tank (b) a magnifier lens (c) an oven glove (d) a roof sheet
  20. 20.True or false: a hair band needs a flexible material. (a) False (b) True
  21. 21.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.🔍 Which is the odd one out? (a) rubber (b) graphite (c) aluminium (d) steel
  23. 23.🧱 Which property matters most for a water tank? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  24. 24.Which of these needs a waterproof material? (a) a plug pin (b) a car windscreen (c) a switch contact (d) a water tank
  25. 25.True or false: a raincoat needs a transparent material. (a) False (b) True
  26. 26.🧱 Which property matters most for a skipping rope? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  27. 27.🧱 Which property matters most for an oven glove? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  28. 28.🔍 Which is the odd one out? (a) aluminium (b) steel (c) plastic (d) copper
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  30. 30.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  31. 31.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🔍 Which is the odd one out? (a) steel (b) copper (c) brass (d) dry wood
  33. 33.True or false: a car windscreen needs a flexible material. (a) True (b) False
  34. 34.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.Which of these needs a waterproof material? (a) a magnifier lens (b) a skipping rope (c) a boat hull (d) a cooking pot handle
  36. 36.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Which property matters most for a switch contact? (a) transparent (b) waterproof (c) electrical conductor (d) heat insulator
  38. 38.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  39. 39.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  40. 40.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) transparent (d) waterproof

Answer key

  1. True
  2. a car windscreen
  3. an insulator
  4. aluminium
  5. a plug pin
  6. False
  7. True
  8. True
  9. a hair band
  10. steel
  11. heat insulator
  12. a tea flask lining
  13. waterproof
  14. brass
  15. flexible
  16. copper
  17. transparent
  18. transparent
  19. an oven glove
  20. True
  21. a conductor
  22. rubber
  23. waterproof
  24. a water tank
  25. False
  26. flexible
  27. heat insulator
  28. plastic
  29. a conductor
  30. copper
  31. a conductor
  32. dry wood
  33. False
  34. a conductor
  35. a boat hull
  36. a conductor
  37. electrical conductor
  38. wood or plastic
  39. False
  40. waterproof

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