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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 946 · 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 plug pin needs a transparent material. (a) False (b) True
  2. 2.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  3. 3.🧱 Which property matters most for a raincoat? (a) heat insulator (b) transparent (c) electrical conductor (d) waterproof
  4. 4.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) glass (d) copper
  5. 5.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) glass (d) wood
  7. 7.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.🔍 Which is the odd one out? (a) iron (b) steel (c) copper (d) cotton cloth
  9. 9.🔍 Which is the odd one out? (a) aluminium (b) iron (c) dry wood (d) copper
  10. 10.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) transparent (d) flexible
  11. 11.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) plastic-coated cloth (d) cotton wool
  13. 13.Which of these needs a transparent material? (a) a cooking pot handle (b) a window pane (c) a plug pin (d) a car seat belt
  14. 14.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs a flexible material? (a) a spectacle lens (b) a car windscreen (c) a water tank (d) a skipping rope
  16. 16.🔍 Which is the odd one out? (a) copper (b) aluminium (c) rubber (d) iron
  17. 17.True or false: a boat hull needs a heat insulator. (a) True (b) False
  18. 18.Which of these needs a transparent material? (a) a water tank (b) a spectacle lens (c) a raincoat (d) a tea flask lining
  19. 19.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  20. 20.Which of these needs a waterproof material? (a) an umbrella cover (b) a hair band (c) a plug pin (d) a car windscreen
  21. 21.True or false: a hair band needs a flexible material. (a) True (b) False
  22. 22.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🔍 Which is the odd one out? (a) iron (b) clay pottery (c) cotton cloth (d) plastic
  24. 24.Which of these needs an electrical conductor? (a) an oven glove (b) a window pane (c) the core of a wire (d) a car windscreen
  25. 25.🔍 Which is the odd one out? (a) steel (b) brass (c) plastic (d) aluminium
  26. 26.Which of these needs a waterproof material? (a) a yoga mat (b) a magnifier lens (c) a water tank (d) a spectacle lens
  27. 27.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  28. 28.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  30. 30.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs a flexible material? (a) a raincoat (b) a roof sheet (c) a magnifier lens (d) a car seat belt
  32. 32.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which property matters most for a plug pin? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  34. 34.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  35. 35.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  36. 36.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.Which of these needs a waterproof material? (a) a hair band (b) the core of a wire (c) a roof sheet (d) an oven glove
  38. 38.🔍 Which is the odd one out? (a) aluminium (b) glass (c) plastic (d) rubber
  39. 39.Which of these needs a transparent material? (a) a raincoat (b) a magnifier lens (c) a skipping rope (d) an umbrella cover
  40. 40.🔍 Which is the odd one out? (a) glass (b) cotton cloth (c) clay pottery (d) brass

Answer key

  1. False
  2. waterproof
  3. waterproof
  4. copper
  5. an insulator
  6. copper
  7. a conductor
  8. cotton cloth
  9. dry wood
  10. electrical conductor
  11. a conductor
  12. plastic-coated cloth
  13. a window pane
  14. a conductor
  15. a skipping rope
  16. rubber
  17. False
  18. a spectacle lens
  19. heat insulator
  20. an umbrella cover
  21. True
  22. a conductor
  23. iron
  24. the core of a wire
  25. plastic
  26. a water tank
  27. transparent
  28. an insulator
  29. transparent
  30. an insulator
  31. a car seat belt
  32. an insulator
  33. electrical conductor
  34. transparent
  35. waterproof
  36. a conductor
  37. a roof sheet
  38. aluminium
  39. a magnifier lens
  40. brass

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