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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 786 · 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 boat hull needs a waterproof material. (a) False (b) True
  2. 2.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  3. 3.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  4. 4.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  5. 5.True or false: a window pane needs a waterproof material. (a) True (b) False
  6. 6.Which of these needs a transparent material? (a) a window pane (b) a roof sheet (c) a skipping rope (d) the core of a wire
  7. 7.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  8. 8.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🔍 Which is the odd one out? (a) brass (b) rubber (c) clay pottery (d) cotton cloth
  10. 10.🧱 Which property matters most for a yoga mat? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  11. 11.🧱 Which property matters most for a car windscreen? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  12. 12.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  15. 15.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) cotton wool (d) plastic-coated cloth
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) rubber (c) plastic (d) cotton cloth
  17. 17.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  18. 18.Which of these needs a flexible material? (a) a tea flask lining (b) a raincoat (c) a boat hull (d) a skipping rope
  19. 19.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  20. 20.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) iron (b) copper (c) brass (d) dry wood
  22. 22.Which of these needs a flexible material? (a) a car seat belt (b) a plug pin (c) a boat hull (d) a magnifier lens
  23. 23.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) heat insulator (d) transparent
  24. 24.True or false: a raincoat needs a heat insulator. (a) True (b) False
  25. 25.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  26. 26.🧱 Which property matters most for a boat hull? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  27. 27.🧱 Which property matters most for a plug pin? (a) flexible (b) heat insulator (c) transparent (d) electrical conductor
  28. 28.🔍 Which is the odd one out? (a) steel (b) iron (c) aluminium (d) clay pottery
  29. 29.True or false: a car windscreen needs a transparent material. (a) False (b) True
  30. 30.🧱 Which property matters most for a water tank? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  31. 31.Which of these needs a waterproof material? (a) a window pane (b) a car windscreen (c) a water tank (d) a spectacle lens
  32. 32.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.Which of these needs a waterproof material? (a) a car windscreen (b) a switch contact (c) a hair band (d) a raincoat
  34. 34.Which of these needs a transparent material? (a) a car seat belt (b) a roof sheet (c) a boat hull (d) a spectacle lens
  35. 35.Which of these needs a waterproof material? (a) an oven glove (b) the core of a wire (c) a plug pin (d) an umbrella cover
  36. 36.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  37. 37.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  38. 38.Which of these needs an electrical conductor? (a) a car seat belt (b) a tea flask lining (c) an oven glove (d) a plug pin
  39. 39.True or false: a cooking pot handle needs a flexible material. (a) True (b) False
  40. 40.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor

Answer key

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

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