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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 568 · 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 flexible material. (a) True (b) False
  2. 2.Which of these needs a heat insulator? (a) a magnifier lens (b) a yoga mat (c) an oven glove (d) a spectacle lens
  3. 3.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) cotton cloth (d) brass
  5. 5.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) flexible (c) transparent (d) electrical conductor
  9. 9.Which of these needs a transparent material? (a) a tea flask lining (b) a cooking pot handle (c) a magnifier lens (d) a raincoat
  10. 10.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  11. 11.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cotton wool (d) cardboard
  12. 12.🧱 Which property matters most for a hair band? (a) heat insulator (b) transparent (c) flexible (d) waterproof
  13. 13.True or false: a raincoat needs a flexible material. (a) True (b) False
  14. 14.Which of these needs a flexible material? (a) a hair band (b) a roof sheet (c) a magnifier lens (d) a plug pin
  15. 15.🧱 Which property matters most for a skipping rope? (a) flexible (b) heat insulator (c) electrical conductor (d) transparent
  16. 16.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  17. 17.🧱 Which property matters most for a tea flask lining? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  18. 18.🔍 Which is the odd one out? (a) rubber (b) glass (c) dry wood (d) graphite
  19. 19.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) iron (d) rubber
  20. 20.Which of these needs a flexible material? (a) a water tank (b) a tea flask lining (c) a car seat belt (d) a boat hull
  21. 21.🧱 Which property matters most for a cooking pot handle? (a) electrical conductor (b) flexible (c) heat insulator (d) transparent
  22. 22.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  23. 23.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.Which of these needs an electrical conductor? (a) the core of a wire (b) an umbrella cover (c) a tea flask lining (d) a spectacle lens
  25. 25.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a car windscreen needs a transparent material. (a) False (b) True
  27. 27.🧱 Which property matters most for a raincoat? (a) flexible (b) waterproof (c) electrical conductor (d) transparent
  28. 28.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  29. 29.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  30. 30.Which of these needs a waterproof material? (a) a switch contact (b) a cooking pot handle (c) a roof sheet (d) a yoga mat
  31. 31.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) iron (d) graphite
  33. 33.True or false: a skipping rope needs a flexible material. (a) False (b) True
  34. 34.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.Which of these needs a waterproof material? (a) a boat hull (b) a tea flask lining (c) a magnifier lens (d) a cooking pot handle
  36. 36.🧱 Which property matters most for a switch contact? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  37. 37.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.True or false: a car windscreen needs a waterproof material. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) iron (b) plastic (c) graphite (d) steel
  40. 40.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor

Answer key

  1. False
  2. an oven glove
  3. True
  4. brass
  5. an insulator
  6. a conductor
  7. an insulator
  8. flexible
  9. a magnifier lens
  10. copper
  11. plastic-coated cloth
  12. flexible
  13. False
  14. a hair band
  15. flexible
  16. True
  17. heat insulator
  18. graphite
  19. iron
  20. a car seat belt
  21. heat insulator
  22. transparent
  23. an insulator
  24. the core of a wire
  25. a conductor
  26. True
  27. waterproof
  28. a conductor
  29. waterproof
  30. a roof sheet
  31. False
  32. clay pottery
  33. True
  34. a conductor
  35. a boat hull
  36. electrical conductor
  37. an insulator
  38. False
  39. plastic
  40. electrical conductor

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