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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 441 · 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 aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  2. 2.True or false: a boat hull needs a transparent material. (a) False (b) True
  3. 3.True or false: a yoga mat needs a flexible material. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) brass (b) aluminium (c) copper (d) dry wood
  5. 5.Which of these needs a waterproof material? (a) a car windscreen (b) an umbrella cover (c) a tea flask lining (d) a magnifier lens
  6. 6.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  7. 7.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  8. 8.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  9. 9.🔍 Which is the odd one out? (a) glass (b) plastic (c) aluminium (d) cotton cloth
  10. 10.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  11. 11.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  12. 12.🧱 Which material is best for the core of an electric wire? (a) glass (b) copper (c) wood (d) rubber
  13. 13.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs an electrical conductor? (a) a car windscreen (b) a skipping rope (c) a water tank (d) the core of a wire
  15. 15.Which of these needs a heat insulator? (a) a cooking pot handle (b) a plug pin (c) a magnifier lens (d) an umbrella cover
  16. 16.True or false: a car windscreen needs a heat insulator. (a) True (b) False
  17. 17.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  18. 18.🧱 Which property matters most for a car seat belt? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  19. 19.🔍 Which is the odd one out? (a) copper (b) aluminium (c) glass (d) brass
  20. 20.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  21. 21.🔍 Which is the odd one out? (a) iron (b) aluminium (c) copper (d) cotton cloth
  22. 22.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) glass (d) copper
  23. 23.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.Which of these needs a transparent material? (a) a roof sheet (b) a raincoat (c) a hair band (d) a car windscreen
  25. 25.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  26. 26.🧱 Which property matters most for an oven glove? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  27. 27.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.True or false: the core of a wire needs a waterproof material. (a) False (b) True
  29. 29.🧱 Which property matters most for an umbrella cover? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  30. 30.True or false: a magnifier lens needs a flexible material. (a) False (b) True
  31. 31.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.Which of these needs an electrical conductor? (a) a car seat belt (b) a roof sheet (c) a plug pin (d) an umbrella cover
  33. 33.True or false: a skipping rope needs a flexible material. (a) False (b) True
  34. 34.Which of these needs a flexible material? (a) a car windscreen (b) a spectacle lens (c) a tea flask lining (d) a car seat belt
  35. 35.Which of these needs a transparent material? (a) a yoga mat (b) a roof sheet (c) a window pane (d) an oven glove
  36. 36.Which of these needs a flexible material? (a) a spectacle lens (b) a yoga mat (c) a magnifier lens (d) an oven glove
  37. 37.True or false: a switch contact needs a flexible material. (a) True (b) False
  38. 38.Which of these needs a transparent material? (a) a magnifier lens (b) a boat hull (c) a yoga mat (d) a car seat belt
  39. 39.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) plastic (d) rubber
  40. 40.🔍 Which is the odd one out? (a) graphite (b) cotton cloth (c) plastic (d) glass

Answer key

  1. a conductor
  2. False
  3. True
  4. dry wood
  5. an umbrella cover
  6. an insulator
  7. transparent
  8. True
  9. aluminium
  10. wood or plastic
  11. waterproof
  12. copper
  13. an insulator
  14. the core of a wire
  15. a cooking pot handle
  16. False
  17. plastic-coated cloth
  18. flexible
  19. glass
  20. transparent
  21. cotton cloth
  22. copper
  23. an insulator
  24. a car windscreen
  25. True
  26. heat insulator
  27. a conductor
  28. False
  29. waterproof
  30. False
  31. an insulator
  32. a plug pin
  33. True
  34. a car seat belt
  35. a window pane
  36. a yoga mat
  37. False
  38. a magnifier lens
  39. steel
  40. graphite

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