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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 807 · 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 material is best for the core of an electric wire? (a) glass (b) copper (c) rubber (d) wood
  2. 2.🧱 Which material is best for a raincoat? (a) paper (b) cotton wool (c) cardboard (d) plastic-coated cloth
  3. 3.🔍 Which is the odd one out? (a) rubber (b) glass (c) clay pottery (d) iron
  4. 4.🧱 Which property matters most for a water tank? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  5. 5.Which of these needs a transparent material? (a) a boat hull (b) a window pane (c) the core of a wire (d) an oven glove
  6. 6.🧱 Which property matters most for a yoga mat? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
  7. 7.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🔍 Which is the odd one out? (a) iron (b) rubber (c) aluminium (d) steel
  9. 9.🧱 Which property matters most for the core of a wire? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  10. 10.🔍 Which is the odd one out? (a) copper (b) iron (c) dry wood (d) graphite
  11. 11.🔍 Which is the odd one out? (a) rubber (b) dry wood (c) clay pottery (d) copper
  12. 12.Which of these needs a flexible material? (a) a raincoat (b) a yoga mat (c) a magnifier lens (d) a tea flask lining
  13. 13.🧱 Which property matters most for a raincoat? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  14. 14.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  15. 15.🧱 Which property matters most for a plug pin? (a) transparent (b) heat insulator (c) waterproof (d) electrical conductor
  16. 16.Which of these needs a waterproof material? (a) an oven glove (b) a hair band (c) a plug pin (d) a raincoat
  17. 17.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) flexible (c) transparent (d) heat insulator
  18. 18.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  19. 19.🧱 Which property matters most for an oven glove? (a) heat insulator (b) waterproof (c) flexible (d) electrical conductor
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  22. 22.Which of these needs an electrical conductor? (a) a hair band (b) a yoga mat (c) a roof sheet (d) the core of a wire
  23. 23.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  24. 24.Which of these needs a heat insulator? (a) a car seat belt (b) an oven glove (c) a switch contact (d) a hair band
  25. 25.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  26. 26.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) plastic (d) graphite
  28. 28.🧱 Which property matters most for a roof sheet? (a) flexible (b) electrical conductor (c) heat insulator (d) waterproof
  29. 29.🔍 Which is the odd one out? (a) graphite (b) plastic (c) iron (d) copper
  30. 30.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.True or false: a car seat belt needs a heat insulator. (a) True (b) False
  32. 32.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) transparent (d) waterproof
  33. 33.🔍 Which is the odd one out? (a) iron (b) steel (c) copper (d) clay pottery
  34. 34.True or false: an oven glove needs a transparent material. (a) False (b) True
  35. 35.Which of these needs a flexible material? (a) a switch contact (b) a magnifier lens (c) a skipping rope (d) a water tank
  36. 36.🧱 Which material is best for a window pane? (a) wood (b) steel (c) brick (d) glass
  37. 37.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) electrical conductor (c) flexible (d) transparent
  38. 38.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.Which of these needs an electrical conductor? (a) a window pane (b) a boat hull (c) a switch contact (d) a water tank
  40. 40.True or false: a raincoat needs a transparent material. (a) False (b) True

Answer key

  1. copper
  2. plastic-coated cloth
  3. iron
  4. waterproof
  5. a window pane
  6. flexible
  7. an insulator
  8. rubber
  9. electrical conductor
  10. dry wood
  11. copper
  12. a yoga mat
  13. waterproof
  14. a conductor
  15. electrical conductor
  16. a raincoat
  17. electrical conductor
  18. True
  19. heat insulator
  20. an insulator
  21. waterproof
  22. the core of a wire
  23. False
  24. an oven glove
  25. waterproof
  26. a conductor
  27. graphite
  28. waterproof
  29. plastic
  30. a conductor
  31. False
  32. heat insulator
  33. clay pottery
  34. False
  35. a skipping rope
  36. glass
  37. transparent
  38. an insulator
  39. a switch contact
  40. False

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