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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 497 · 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 of these needs a transparent material? (a) a yoga mat (b) a plug pin (c) a tea flask lining (d) a window pane
  2. 2.Which of these needs a heat insulator? (a) a car seat belt (b) a boat hull (c) a spectacle lens (d) a tea flask lining
  3. 3.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  4. 4.🧱 Which property matters most for a window pane? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  5. 5.🧱 Which property matters most for a plug pin? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  6. 6.🔍 Which is the odd one out? (a) iron (b) copper (c) graphite (d) glass
  7. 7.🧱 Which property matters most for a yoga mat? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  8. 8.🔍 Which is the odd one out? (a) rubber (b) aluminium (c) dry wood (d) glass
  9. 9.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: a magnifier lens needs a heat insulator. (a) False (b) True
  13. 13.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🔍 Which is the odd one out? (a) glass (b) steel (c) plastic (d) rubber
  15. 15.Which of these needs a flexible material? (a) a tea flask lining (b) a car seat belt (c) a water tank (d) a spectacle lens
  16. 16.Which of these needs a transparent material? (a) a switch contact (b) the core of a wire (c) a car windscreen (d) an oven glove
  17. 17.Which of these needs an electrical conductor? (a) a magnifier lens (b) an oven glove (c) a plug pin (d) an umbrella cover
  18. 18.True or false: a water tank needs a waterproof material. (a) False (b) True
  19. 19.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  20. 20.Which of these needs an electrical conductor? (a) a skipping rope (b) a raincoat (c) a cooking pot handle (d) the core of a wire
  21. 21.Which of these needs a waterproof material? (a) a tea flask lining (b) a skipping rope (c) a water tank (d) a switch contact
  22. 22.Which of these needs a heat insulator? (a) a cooking pot handle (b) a boat hull (c) a window pane (d) a hair band
  23. 23.Which of these needs a flexible material? (a) an umbrella cover (b) a switch contact (c) a yoga mat (d) an oven glove
  24. 24.🔍 Which is the odd one out? (a) aluminium (b) iron (c) brass (d) plastic
  25. 25.Which of these needs a waterproof material? (a) a raincoat (b) the core of a wire (c) a car windscreen (d) a plug pin
  26. 26.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) transparent (d) electrical conductor
  28. 28.🔍 Which is the odd one out? (a) iron (b) aluminium (c) brass (d) dry wood
  29. 29.True or false: a boat hull needs a transparent material. (a) False (b) True
  30. 30.True or false: the core of a wire needs a flexible material. (a) False (b) True
  31. 31.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which material is best for the bars inside concrete? (a) rubber (b) plastic (c) glass (d) steel
  34. 34.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
  35. 35.🔍 Which is the odd one out? (a) brass (b) iron (c) cotton cloth (d) steel
  36. 36.🧱 Which property matters most for an oven glove? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
  37. 37.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.Which of these needs a heat insulator? (a) an umbrella cover (b) a hair band (c) an oven glove (d) a plug pin
  39. 39.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  40. 40.Which of these needs a flexible material? (a) an umbrella cover (b) a switch contact (c) a magnifier lens (d) a hair band

Answer key

  1. a window pane
  2. a tea flask lining
  3. True
  4. transparent
  5. electrical conductor
  6. glass
  7. flexible
  8. aluminium
  9. a conductor
  10. a conductor
  11. an insulator
  12. False
  13. a conductor
  14. steel
  15. a car seat belt
  16. a car windscreen
  17. a plug pin
  18. True
  19. wood or plastic
  20. the core of a wire
  21. a water tank
  22. a cooking pot handle
  23. a yoga mat
  24. plastic
  25. a raincoat
  26. a conductor
  27. transparent
  28. dry wood
  29. False
  30. False
  31. an insulator
  32. an insulator
  33. steel
  34. glass
  35. cotton cloth
  36. heat insulator
  37. an insulator
  38. an oven glove
  39. True
  40. a hair band

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