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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 534 · 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 property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  2. 2.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  4. 4.Which of these needs a flexible material? (a) a tea flask lining (b) a boat hull (c) an oven glove (d) a hair band
  5. 5.Which of these needs a transparent material? (a) a raincoat (b) a car windscreen (c) a water tank (d) an umbrella cover
  6. 6.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.True or false: a raincoat needs a flexible material. (a) True (b) False
  10. 10.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  11. 11.Which of these needs a waterproof material? (a) a car windscreen (b) a magnifier lens (c) a raincoat (d) a hair band
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  14. 14.🔍 Which is the odd one out? (a) glass (b) rubber (c) clay pottery (d) steel
  15. 15.Which of these needs a flexible material? (a) a car seat belt (b) a raincoat (c) a boat hull (d) a water tank
  16. 16.🧱 Which property matters most for an oven glove? (a) flexible (b) heat insulator (c) transparent (d) waterproof
  17. 17.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  18. 18.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  21. 21.Which of these needs an electrical conductor? (a) a switch contact (b) an umbrella cover (c) a roof sheet (d) a tea flask lining
  22. 22.True or false: an oven glove needs a waterproof material. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) brass (b) copper (c) dry wood (d) iron
  24. 24.🔍 Which is the odd one out? (a) plastic (b) graphite (c) copper (d) steel
  25. 25.🔍 Which is the odd one out? (a) graphite (b) aluminium (c) cotton cloth (d) iron
  26. 26.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  27. 27.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  28. 28.Which of these needs an electrical conductor? (a) an umbrella cover (b) a yoga mat (c) a plug pin (d) a tea flask lining
  29. 29.True or false: a water tank needs a transparent material. (a) False (b) True
  30. 30.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  31. 31.🔍 Which is the odd one out? (a) graphite (b) brass (c) glass (d) iron
  32. 32.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) copper (d) aluminium
  33. 33.🧱 Which property matters most for a skipping rope? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  34. 34.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  35. 35.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.Which of these needs a flexible material? (a) a boat hull (b) a cooking pot handle (c) a roof sheet (d) a yoga mat
  37. 37.Which of these needs a transparent material? (a) a cooking pot handle (b) a tea flask lining (c) a switch contact (d) a window pane
  38. 38.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  39. 39.🧱 Which property matters most for a switch contact? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  40. 40.True or false: a boat hull needs a transparent material. (a) False (b) True

Answer key

  1. transparent
  2. a conductor
  3. plastic-coated cloth
  4. a hair band
  5. a car windscreen
  6. an insulator
  7. an insulator
  8. a conductor
  9. False
  10. copper
  11. a raincoat
  12. a conductor
  13. waterproof
  14. steel
  15. a car seat belt
  16. heat insulator
  17. flexible
  18. False
  19. a conductor
  20. waterproof
  21. a switch contact
  22. False
  23. dry wood
  24. plastic
  25. cotton cloth
  26. glass
  27. True
  28. a plug pin
  29. False
  30. waterproof
  31. glass
  32. clay pottery
  33. flexible
  34. an insulator
  35. a conductor
  36. a yoga mat
  37. a window pane
  38. waterproof
  39. electrical conductor
  40. False

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