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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 505 · 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 property matters most for a water tank? (a) flexible (b) electrical conductor (c) waterproof (d) transparent
  2. 2.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.Which of these needs an electrical conductor? (a) a tea flask lining (b) a skipping rope (c) a car seat belt (d) a plug pin
  4. 4.Which of these needs a waterproof material? (a) a car seat belt (b) a car windscreen (c) a boat hull (d) a spectacle lens
  5. 5.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) dry wood (d) copper
  6. 6.🧱 Which property matters most for a skipping rope? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  7. 7.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  8. 8.Which of these needs an electrical conductor? (a) a raincoat (b) the core of a wire (c) a magnifier lens (d) a water tank
  9. 9.Which of these needs a heat insulator? (a) an oven glove (b) a yoga mat (c) a magnifier lens (d) a boat hull
  10. 10.Which of these needs a flexible material? (a) a switch contact (b) a plug pin (c) a car windscreen (d) a car seat belt
  11. 11.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) copper (c) aluminium (d) iron
  16. 16.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  18. 18.🔍 Which is the odd one out? (a) graphite (b) iron (c) glass (d) brass
  19. 19.True or false: a raincoat needs a heat insulator. (a) False (b) True
  20. 20.🧱 Which property matters most for a boat hull? (a) heat insulator (b) waterproof (c) transparent (d) flexible
  21. 21.True or false: a car windscreen needs a transparent material. (a) True (b) False
  22. 22.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) clay pottery (d) aluminium
  24. 24.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) brass (d) clay pottery
  25. 25.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) cotton cloth (d) steel
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) transparent (d) heat insulator
  28. 28.Which of these needs a flexible material? (a) a tea flask lining (b) a skipping rope (c) a boat hull (d) the core of a wire
  29. 29.True or false: a raincoat needs a flexible material. (a) False (b) True
  30. 30.True or false: a window pane needs a waterproof material. (a) False (b) True
  31. 31.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  32. 32.🔍 Which is the odd one out? (a) plastic (b) aluminium (c) graphite (d) steel
  33. 33.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  34. 34.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  35. 35.True or false: a roof sheet needs a waterproof material. (a) True (b) False
  36. 36.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  37. 37.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.Which of these needs a waterproof material? (a) an oven glove (b) a skipping rope (c) a water tank (d) a hair band
  39. 39.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  40. 40.🔍 Which is the odd one out? (a) iron (b) steel (c) rubber (d) copper

Answer key

  1. waterproof
  2. a conductor
  3. a plug pin
  4. a boat hull
  5. copper
  6. flexible
  7. True
  8. the core of a wire
  9. an oven glove
  10. a car seat belt
  11. an insulator
  12. a conductor
  13. a conductor
  14. an insulator
  15. wood or plastic
  16. a conductor
  17. flexible
  18. glass
  19. False
  20. waterproof
  21. True
  22. a conductor
  23. aluminium
  24. brass
  25. steel
  26. an insulator
  27. waterproof
  28. a skipping rope
  29. False
  30. False
  31. an insulator
  32. plastic
  33. glass
  34. waterproof
  35. True
  36. heat insulator
  37. an insulator
  38. a water tank
  39. transparent
  40. rubber

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