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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 142 · 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 magnifier lens needs a transparent material. (a) True (b) False
  2. 2.🧱 Which material is best for a window pane? (a) steel (b) wood (c) glass (d) brick
  3. 3.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  4. 4.True or false: a car windscreen needs a heat insulator. (a) False (b) True
  5. 5.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  6. 6.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  8. 8.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  9. 9.Which of these needs a flexible material? (a) a car windscreen (b) a tea flask lining (c) a skipping rope (d) a switch contact
  10. 10.Which of these needs a flexible material? (a) an umbrella cover (b) a switch contact (c) a water tank (d) a yoga mat
  11. 11.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: an oven glove needs a transparent material. (a) False (b) True
  13. 13.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a transparent material? (a) a hair band (b) a window pane (c) a cooking pot handle (d) a water tank
  15. 15.🧱 Which material is best for the core of an electric wire? (a) copper (b) glass (c) rubber (d) wood
  16. 16.Which of these needs a heat insulator? (a) a spectacle lens (b) a car windscreen (c) the core of a wire (d) a tea flask lining
  17. 17.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) aluminium (d) glass
  18. 18.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  19. 19.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a raincoat? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  22. 22.🔍 Which is the odd one out? (a) steel (b) aluminium (c) graphite (d) glass
  23. 23.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  24. 24.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  25. 25.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) aluminium (d) graphite
  26. 26.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  27. 27.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) flexible (d) heat insulator
  29. 29.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.Which of these needs a waterproof material? (a) a tea flask lining (b) a skipping rope (c) a roof sheet (d) a car seat belt
  31. 31.Which of these needs a heat insulator? (a) an umbrella cover (b) a boat hull (c) the core of a wire (d) a cooking pot handle
  32. 32.Which of these needs a transparent material? (a) a raincoat (b) an oven glove (c) the core of a wire (d) a magnifier lens
  33. 33.🧱 Which property matters most for a switch contact? (a) transparent (b) flexible (c) heat insulator (d) electrical conductor
  34. 34.🧱 Which property matters most for a car seat belt? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  35. 35.🧱 Which property matters most for a water tank? (a) transparent (b) heat insulator (c) waterproof (d) flexible
  36. 36.Which of these needs a heat insulator? (a) a raincoat (b) a spectacle lens (c) an oven glove (d) a hair band
  37. 37.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  38. 38.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  40. 40.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) flexible (c) waterproof (d) transparent

Answer key

  1. True
  2. glass
  3. steel
  4. False
  5. transparent
  6. an insulator
  7. plastic-coated cloth
  8. True
  9. a skipping rope
  10. a yoga mat
  11. a conductor
  12. False
  13. an insulator
  14. a window pane
  15. copper
  16. a tea flask lining
  17. aluminium
  18. flexible
  19. waterproof
  20. a conductor
  21. waterproof
  22. glass
  23. waterproof
  24. transparent
  25. clay pottery
  26. heat insulator
  27. an insulator
  28. heat insulator
  29. a conductor
  30. a roof sheet
  31. a cooking pot handle
  32. a magnifier lens
  33. electrical conductor
  34. flexible
  35. waterproof
  36. an oven glove
  37. True
  38. a conductor
  39. transparent
  40. waterproof

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