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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 742 · 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) electrical conductor (b) waterproof (c) flexible (d) transparent
  2. 2.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  3. 3.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  4. 4.🧱 Which property matters most for an umbrella cover? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
  5. 5.🔍 Which is the odd one out? (a) glass (b) rubber (c) cotton cloth (d) brass
  6. 6.🔍 Which is the odd one out? (a) graphite (b) rubber (c) plastic (d) dry wood
  7. 7.🔍 Which is the odd one out? (a) plastic (b) steel (c) glass (d) clay pottery
  8. 8.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  9. 9.🔍 Which is the odd one out? (a) graphite (b) copper (c) brass (d) plastic
  10. 10.Which of these needs a waterproof material? (a) a switch contact (b) a window pane (c) an umbrella cover (d) a spectacle lens
  11. 11.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
  12. 12.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.True or false: a skipping rope needs a heat insulator. (a) False (b) True
  14. 14.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.Which of these needs a heat insulator? (a) a hair band (b) a cooking pot handle (c) a roof sheet (d) a car windscreen
  16. 16.🔍 Which is the odd one out? (a) aluminium (b) clay pottery (c) steel (d) brass
  17. 17.True or false: a hair band needs a flexible material. (a) True (b) False
  18. 18.🧱 Which property matters most for a cooking pot handle? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  19. 19.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Which property matters most for an oven glove? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  21. 21.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) flexible (d) waterproof
  22. 22.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  23. 23.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.Which of these needs a flexible material? (a) a switch contact (b) a raincoat (c) the core of a wire (d) a car seat belt
  25. 25.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) iron (c) aluminium (d) copper
  26. 26.True or false: a roof sheet needs a heat insulator. (a) True (b) False
  27. 27.🧱 Which property matters most for a switch contact? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  28. 28.True or false: a raincoat needs a transparent material. (a) True (b) False
  29. 29.Which of these needs a flexible material? (a) a roof sheet (b) a water tank (c) a yoga mat (d) a spectacle lens
  30. 30.Which of these needs a flexible material? (a) a magnifier lens (b) an umbrella cover (c) a skipping rope (d) a water tank
  31. 31.🧱 Which material is best for a window pane? (a) steel (b) glass (c) wood (d) brick
  32. 32.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🧱 Which property matters most for a car seat belt? (a) waterproof (b) transparent (c) electrical conductor (d) flexible
  34. 34.🔍 Which is the odd one out? (a) copper (b) rubber (c) dry wood (d) plastic
  35. 35.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  36. 36.Which of these needs a heat insulator? (a) a skipping rope (b) a tea flask lining (c) a raincoat (d) a water tank
  37. 37.True or false: a plug pin needs a waterproof material. (a) True (b) False
  38. 38.True or false: a water tank needs a waterproof material. (a) False (b) True
  39. 39.🧱 Which property matters most for a raincoat? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  40. 40.Which of these needs an electrical conductor? (a) the core of a wire (b) an umbrella cover (c) a spectacle lens (d) a raincoat

Answer key

  1. waterproof
  2. waterproof
  3. copper
  4. waterproof
  5. brass
  6. graphite
  7. steel
  8. a conductor
  9. plastic
  10. an umbrella cover
  11. flexible
  12. a conductor
  13. False
  14. an insulator
  15. a cooking pot handle
  16. clay pottery
  17. True
  18. heat insulator
  19. an insulator
  20. heat insulator
  21. waterproof
  22. an insulator
  23. an insulator
  24. a car seat belt
  25. wood or plastic
  26. False
  27. electrical conductor
  28. False
  29. a yoga mat
  30. a skipping rope
  31. glass
  32. a conductor
  33. flexible
  34. copper
  35. plastic-coated cloth
  36. a tea flask lining
  37. False
  38. True
  39. waterproof
  40. the core of a wire

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