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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 420 · 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 car seat belt needs a flexible material. (a) False (b) True
  2. 2.Which of these needs a flexible material? (a) an oven glove (b) a car windscreen (c) a magnifier lens (d) a hair band
  3. 3.Which of these needs a flexible material? (a) an umbrella cover (b) a car seat belt (c) a raincoat (d) a magnifier lens
  4. 4.🧱 Which property matters most for a water tank? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  5. 5.🧱 Which property matters most for a hair band? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  6. 6.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
  7. 7.True or false: a yoga mat needs a waterproof material. (a) False (b) True
  8. 8.True or false: a hair band needs a flexible material. (a) True (b) False
  9. 9.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  11. 11.Which of these needs a waterproof material? (a) an umbrella cover (b) a cooking pot handle (c) a skipping rope (d) the core of a wire
  12. 12.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  13. 13.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  14. 14.🧱 Which property matters most for a car windscreen? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  15. 15.🧱 Which property matters most for a cooking pot handle? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  16. 16.🔍 Which is the odd one out? (a) copper (b) graphite (c) cotton cloth (d) steel
  17. 17.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.True or false: a plug pin needs a waterproof material. (a) True (b) False
  20. 20.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) steel (d) aluminium
  22. 22.🔍 Which is the odd one out? (a) dry wood (b) rubber (c) copper (d) glass
  23. 23.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
  24. 24.Which of these needs a waterproof material? (a) a raincoat (b) a tea flask lining (c) a spectacle lens (d) a car seat belt
  25. 25.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) transparent (d) heat insulator
  26. 26.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which property matters most for a skipping rope? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  29. 29.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) clay pottery (d) steel
  30. 30.🔍 Which is the odd one out? (a) graphite (b) steel (c) brass (d) dry wood
  31. 31.🔍 Which is the odd one out? (a) aluminium (b) copper (c) rubber (d) iron
  32. 32.True or false: a skipping rope needs a waterproof material. (a) False (b) True
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  34. 34.🧱 Which property matters most for a switch contact? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
  35. 35.Which of these needs a waterproof material? (a) a boat hull (b) a yoga mat (c) a hair band (d) a car seat belt
  36. 36.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) glass (d) rubber
  37. 37.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.Which of these needs a transparent material? (a) a water tank (b) a hair band (c) a magnifier lens (d) a switch contact
  39. 39.True or false: a boat hull needs a waterproof material. (a) True (b) False
  40. 40.True or false: a plug pin needs an electrical conductor. (a) False (b) True

Answer key

  1. True
  2. a hair band
  3. a car seat belt
  4. waterproof
  5. flexible
  6. copper
  7. False
  8. True
  9. an insulator
  10. plastic-coated cloth
  11. an umbrella cover
  12. a conductor
  13. transparent
  14. transparent
  15. heat insulator
  16. cotton cloth
  17. a conductor
  18. an insulator
  19. False
  20. an insulator
  21. clay pottery
  22. copper
  23. glass
  24. a raincoat
  25. heat insulator
  26. a conductor
  27. a conductor
  28. flexible
  29. steel
  30. dry wood
  31. rubber
  32. False
  33. a conductor
  34. electrical conductor
  35. a boat hull
  36. brass
  37. a conductor
  38. a magnifier lens
  39. True
  40. True

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