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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 488 · 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) the core of a wire (b) a boat hull (c) a magnifier lens (d) a window pane
  2. 2.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  3. 3.🧱 Which material is best for a cooking pot handle? (a) iron (b) wood or plastic (c) aluminium (d) copper
  4. 4.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  5. 5.Which of these needs a transparent material? (a) a spectacle lens (b) a cooking pot handle (c) an umbrella cover (d) a skipping rope
  6. 6.🧱 Which material is best for the bars inside concrete? (a) plastic (b) steel (c) glass (d) rubber
  7. 7.🔍 Which is the odd one out? (a) graphite (b) rubber (c) aluminium (d) brass
  8. 8.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.🧱 Which property matters most for an umbrella cover? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  10. 10.Which of these needs a waterproof material? (a) a yoga mat (b) a skipping rope (c) an umbrella cover (d) a car seat belt
  11. 11.True or false: a raincoat needs a waterproof material. (a) False (b) True
  12. 12.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) waterproof (c) transparent (d) electrical conductor
  13. 13.True or false: a water tank needs a waterproof material. (a) True (b) False
  14. 14.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which property matters most for a yoga mat? (a) transparent (b) flexible (c) electrical conductor (d) heat insulator
  16. 16.🔍 Which is the odd one out? (a) iron (b) dry wood (c) copper (d) aluminium
  17. 17.Which of these needs a flexible material? (a) a water tank (b) a car seat belt (c) a cooking pot handle (d) a boat hull
  18. 18.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  19. 19.Which of these needs a transparent material? (a) a magnifier lens (b) a boat hull (c) a raincoat (d) a roof sheet
  20. 20.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  21. 21.Which of these needs a heat insulator? (a) a skipping rope (b) a cooking pot handle (c) a roof sheet (d) a car windscreen
  22. 22.Which of these needs a waterproof material? (a) a car windscreen (b) a switch contact (c) a roof sheet (d) a magnifier lens
  23. 23.True or false: a raincoat needs a heat insulator. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) brass (b) iron (c) clay pottery (d) steel
  25. 25.🧱 Which material is best for a window pane? (a) steel (b) glass (c) brick (d) wood
  26. 26.True or false: a car seat belt needs a waterproof material. (a) True (b) False
  27. 27.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
  28. 28.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) aluminium (d) iron
  29. 29.🧱 Which property matters most for a hair band? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  30. 30.🧱 Which property matters most for a roof sheet? (a) transparent (b) heat insulator (c) flexible (d) waterproof
  31. 31.🔍 Which is the odd one out? (a) copper (b) plastic (c) glass (d) clay pottery
  32. 32.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  33. 33.Which of these needs a heat insulator? (a) a car windscreen (b) a yoga mat (c) a hair band (d) an oven glove
  34. 34.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a switch contact? (a) waterproof (b) flexible (c) electrical conductor (d) heat insulator
  36. 36.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) iron (d) glass
  37. 37.🔍 Which is the odd one out? (a) steel (b) dry wood (c) rubber (d) cotton cloth
  38. 38.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🧱 Which property matters most for a car windscreen? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  40. 40.True or false: a hair band needs an electrical conductor. (a) True (b) False

Answer key

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

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