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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 64 · 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 of these needs a waterproof material? (a) a switch contact (b) a yoga mat (c) a skipping rope (d) a roof sheet
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  4. 4.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) plastic (d) iron
  5. 5.🔍 Which is the odd one out? (a) brass (b) graphite (c) clay pottery (d) copper
  6. 6.🧱 Which property matters most for a switch contact? (a) heat insulator (b) electrical conductor (c) flexible (d) waterproof
  7. 7.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  8. 8.🧱 Which property matters most for a skipping rope? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  9. 9.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  10. 10.True or false: a hair band needs a flexible material. (a) True (b) False
  11. 11.True or false: a switch contact needs an electrical conductor. (a) True (b) False
  12. 12.Which of these needs a waterproof material? (a) an oven glove (b) a tea flask lining (c) a boat hull (d) a plug pin
  13. 13.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) wood or plastic (d) copper
  14. 14.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a flexible material? (a) a hair band (b) a magnifier lens (c) a roof sheet (d) the core of a wire
  16. 16.🔍 Which is the odd one out? (a) plastic (b) clay pottery (c) dry wood (d) steel
  17. 17.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  19. 19.🔍 Which is the odd one out? (a) steel (b) plastic (c) aluminium (d) graphite
  20. 20.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) copper (d) glass
  22. 22.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.True or false: a plug pin needs an electrical conductor. (a) False (b) True
  24. 24.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
  25. 25.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) flexible (d) transparent
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.Which of these needs a heat insulator? (a) a hair band (b) an oven glove (c) a raincoat (d) a window pane
  28. 28.🧱 Which material is best for the bars inside concrete? (a) steel (b) rubber (c) plastic (d) glass
  29. 29.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  30. 30.Which of these needs a flexible material? (a) a roof sheet (b) a raincoat (c) a car windscreen (d) a car seat belt
  31. 31.Which of these needs a transparent material? (a) a spectacle lens (b) a switch contact (c) a water tank (d) a car seat belt
  32. 32.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  33. 33.🔍 Which is the odd one out? (a) plastic (b) graphite (c) rubber (d) glass
  34. 34.True or false: a boat hull needs a waterproof material. (a) False (b) True
  35. 35.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  36. 36.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  37. 37.Which of these needs a waterproof material? (a) an umbrella cover (b) a switch contact (c) a window pane (d) a tea flask lining
  38. 38.🔍 Which is the odd one out? (a) steel (b) iron (c) cotton cloth (d) graphite
  39. 39.Which of these needs a transparent material? (a) a car windscreen (b) a water tank (c) a yoga mat (d) a car seat belt
  40. 40.🔍 Which is the odd one out? (a) brass (b) glass (c) steel (d) iron

Answer key

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

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