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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 604 · 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 material is best for a raincoat? (a) cardboard (b) cotton wool (c) paper (d) plastic-coated cloth
  2. 2.🧱 Which property matters most for a boat hull? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  3. 3.Which of these needs a waterproof material? (a) a skipping rope (b) a yoga mat (c) a raincoat (d) an oven glove
  4. 4.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.True or false: a water tank needs a heat insulator. (a) True (b) False
  6. 6.Which of these needs a waterproof material? (a) an umbrella cover (b) a spectacle lens (c) a car windscreen (d) a cooking pot handle
  7. 7.🧱 Which material is best for the bars inside concrete? (a) plastic (b) rubber (c) glass (d) steel
  8. 8.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) electrical conductor (d) heat insulator
  9. 9.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
  10. 10.Which of these needs a flexible material? (a) a roof sheet (b) a hair band (c) a raincoat (d) an oven glove
  11. 11.🔍 Which is the odd one out? (a) brass (b) steel (c) graphite (d) plastic
  12. 12.True or false: a window pane needs a transparent material. (a) True (b) False
  13. 13.True or false: a switch contact needs an electrical conductor. (a) False (b) True
  14. 14.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a heat insulator? (a) a hair band (b) an umbrella cover (c) a switch contact (d) an oven glove
  16. 16.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) steel (d) rubber
  17. 17.🧱 Which property matters most for a window pane? (a) electrical conductor (b) heat insulator (c) transparent (d) waterproof
  18. 18.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  21. 21.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  23. 23.🧱 Which material is best for a cooking pot handle? (a) copper (b) iron (c) wood or plastic (d) aluminium
  24. 24.🔍 Which is the odd one out? (a) rubber (b) plastic (c) brass (d) dry wood
  25. 25.Which of these needs an electrical conductor? (a) a boat hull (b) a window pane (c) the core of a wire (d) a spectacle lens
  26. 26.Which of these needs a flexible material? (a) a roof sheet (b) a boat hull (c) a car seat belt (d) an umbrella cover
  27. 27.True or false: a cooking pot handle needs an electrical conductor. (a) False (b) True
  28. 28.🧱 Which property matters most for a switch contact? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  29. 29.True or false: a boat hull needs a flexible material. (a) False (b) True
  30. 30.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  31. 31.Which of these needs a transparent material? (a) a car windscreen (b) a cooking pot handle (c) a hair band (d) an umbrella cover
  32. 32.🔍 Which is the odd one out? (a) dry wood (b) copper (c) glass (d) rubber
  33. 33.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  34. 34.🧱 Which property matters most for a spectacle lens? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  35. 35.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  36. 36.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a flexible material? (a) a yoga mat (b) a water tank (c) an oven glove (d) a raincoat
  39. 39.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) electrical conductor (c) heat insulator (d) transparent
  40. 40.Which of these needs an electrical conductor? (a) a roof sheet (b) a cooking pot handle (c) an umbrella cover (d) a plug pin

Answer key

  1. plastic-coated cloth
  2. waterproof
  3. a raincoat
  4. an insulator
  5. False
  6. an umbrella cover
  7. steel
  8. electrical conductor
  9. False
  10. a hair band
  11. plastic
  12. True
  13. True
  14. a conductor
  15. an oven glove
  16. steel
  17. transparent
  18. a conductor
  19. a conductor
  20. flexible
  21. a conductor
  22. an insulator
  23. wood or plastic
  24. brass
  25. the core of a wire
  26. a car seat belt
  27. False
  28. electrical conductor
  29. False
  30. an insulator
  31. a car windscreen
  32. copper
  33. flexible
  34. transparent
  35. flexible
  36. a conductor
  37. an insulator
  38. a yoga mat
  39. heat insulator
  40. a plug pin

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