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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 636 · 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.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.Which of these needs a transparent material? (a) a magnifier lens (b) a hair band (c) a raincoat (d) an oven glove
  3. 3.🧱 Which property matters most for the core of a wire? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  4. 4.🧱 Which property matters most for a yoga mat? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  5. 5.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.Which of these needs a waterproof material? (a) a yoga mat (b) the core of a wire (c) a switch contact (d) a water tank
  7. 7.True or false: a skipping rope needs a heat insulator. (a) True (b) False
  8. 8.Which of these needs a transparent material? (a) a tea flask lining (b) an umbrella cover (c) a spectacle lens (d) a switch contact
  9. 9.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  10. 10.True or false: a skipping rope needs a flexible material. (a) False (b) True
  11. 11.🧱 Which property matters most for a plug pin? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  12. 12.🧱 Which property matters most for a hair band? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  13. 13.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs a heat insulator? (a) an umbrella cover (b) a car windscreen (c) a yoga mat (d) a cooking pot handle
  16. 16.True or false: a water tank needs a waterproof material. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) rubber (b) graphite (c) cotton cloth (d) plastic
  18. 18.🧱 Which property matters most for a window pane? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  19. 19.🔍 Which is the odd one out? (a) steel (b) glass (c) copper (d) aluminium
  20. 20.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) heat insulator (c) transparent (d) flexible
  22. 22.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  24. 24.🧱 Which property matters most for a switch contact? (a) waterproof (b) flexible (c) heat insulator (d) electrical conductor
  25. 25.🔍 Which is the odd one out? (a) cotton cloth (b) brass (c) rubber (d) plastic
  26. 26.True or false: a boat hull needs a waterproof material. (a) False (b) True
  27. 27.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  28. 28.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) heat insulator (d) electrical conductor
  29. 29.Which of these needs a heat insulator? (a) a skipping rope (b) a tea flask lining (c) a car seat belt (d) a yoga mat
  30. 30.🔍 Which is the odd one out? (a) glass (b) aluminium (c) plastic (d) clay pottery
  31. 31.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.Which of these needs a flexible material? (a) a car windscreen (b) a car seat belt (c) a boat hull (d) a raincoat
  34. 34.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  35. 35.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  36. 36.True or false: a plug pin needs a waterproof material. (a) True (b) False
  37. 37.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  38. 38.Which of these needs a waterproof material? (a) a raincoat (b) a car windscreen (c) a car seat belt (d) an oven glove
  39. 39.🧱 Which property matters most for a water tank? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  40. 40.Which of these needs an electrical conductor? (a) an oven glove (b) a car windscreen (c) a switch contact (d) a roof sheet

Answer key

  1. a conductor
  2. a magnifier lens
  3. electrical conductor
  4. flexible
  5. a conductor
  6. a water tank
  7. False
  8. a spectacle lens
  9. waterproof
  10. True
  11. electrical conductor
  12. flexible
  13. glass
  14. a conductor
  15. a cooking pot handle
  16. True
  17. graphite
  18. transparent
  19. glass
  20. an insulator
  21. flexible
  22. an insulator
  23. steel
  24. electrical conductor
  25. brass
  26. True
  27. transparent
  28. heat insulator
  29. a tea flask lining
  30. aluminium
  31. an insulator
  32. a conductor
  33. a car seat belt
  34. waterproof
  35. copper
  36. False
  37. transparent
  38. a raincoat
  39. waterproof
  40. a switch contact

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