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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 122 · 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: an oven glove needs a heat insulator. (a) True (b) False
  2. 2.Which of these needs a transparent material? (a) the core of a wire (b) a magnifier lens (c) a raincoat (d) a tea flask lining
  3. 3.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  4. 4.🧱 Which property matters most for a boat hull? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  5. 5.True or false: a magnifier lens needs an electrical conductor. (a) False (b) True
  6. 6.🧱 Which property matters most for a switch contact? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  7. 7.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🧱 Which property matters most for the core of a wire? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  9. 9.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.Which of these needs an electrical conductor? (a) a hair band (b) an oven glove (c) a yoga mat (d) the core of a wire
  11. 11.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  12. 12.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  13. 13.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) dry wood (b) steel (c) clay pottery (d) cotton cloth
  15. 15.True or false: a yoga mat needs an electrical conductor. (a) False (b) True
  16. 16.Which of these needs a transparent material? (a) an umbrella cover (b) a switch contact (c) a roof sheet (d) a spectacle lens
  17. 17.🔍 Which is the odd one out? (a) aluminium (b) steel (c) graphite (d) cotton cloth
  18. 18.🧱 Which property matters most for a tea flask lining? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  19. 19.🧱 Which property matters most for a roof sheet? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  20. 20.True or false: a water tank needs a heat insulator. (a) False (b) True
  21. 21.🧱 Which property matters most for a plug pin? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  22. 22.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🔍 Which is the odd one out? (a) brass (b) iron (c) plastic (d) aluminium
  25. 25.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) waterproof (c) flexible (d) transparent
  26. 26.Which of these needs a waterproof material? (a) a raincoat (b) a spectacle lens (c) a window pane (d) a car windscreen
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  29. 29.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) brass (d) cotton cloth
  30. 30.🧱 Which property matters most for an umbrella cover? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  31. 31.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) paper (d) cotton wool
  32. 32.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  33. 33.🧱 Which property matters most for an oven glove? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  34. 34.🧱 Which property matters most for a magnifier lens? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  35. 35.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  36. 36.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  37. 37.Which of these needs a heat insulator? (a) a window pane (b) a skipping rope (c) a yoga mat (d) an oven glove
  38. 38.Which of these needs a heat insulator? (a) an umbrella cover (b) a tea flask lining (c) a plug pin (d) a roof sheet
  39. 39.Which of these needs a flexible material? (a) a car windscreen (b) the core of a wire (c) an oven glove (d) a skipping rope
  40. 40.🔍 Which is the odd one out? (a) copper (b) aluminium (c) iron (d) glass

Answer key

  1. True
  2. a magnifier lens
  3. transparent
  4. waterproof
  5. False
  6. electrical conductor
  7. an insulator
  8. electrical conductor
  9. an insulator
  10. the core of a wire
  11. a conductor
  12. False
  13. False
  14. steel
  15. False
  16. a spectacle lens
  17. cotton cloth
  18. heat insulator
  19. waterproof
  20. False
  21. electrical conductor
  22. a conductor
  23. an insulator
  24. plastic
  25. transparent
  26. a raincoat
  27. a conductor
  28. copper
  29. brass
  30. waterproof
  31. plastic-coated cloth
  32. flexible
  33. heat insulator
  34. transparent
  35. glass
  36. flexible
  37. an oven glove
  38. a tea flask lining
  39. a skipping rope
  40. glass

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