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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 910 · 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 a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  2. 2.🔍 Which is the odd one out? (a) glass (b) clay pottery (c) steel (d) rubber
  3. 3.Which of these needs a waterproof material? (a) a cooking pot handle (b) a boat hull (c) a magnifier lens (d) a yoga mat
  4. 4.Which of these needs an electrical conductor? (a) the core of a wire (b) a window pane (c) a raincoat (d) a magnifier lens
  5. 5.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  6. 6.🧱 Which property matters most for a car windscreen? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  7. 7.Which of these needs a waterproof material? (a) a yoga mat (b) a water tank (c) a magnifier lens (d) the core of a wire
  8. 8.Which of these needs a transparent material? (a) a tea flask lining (b) a window pane (c) a car seat belt (d) a plug pin
  9. 9.🔍 Which is the odd one out? (a) dry wood (b) iron (c) aluminium (d) graphite
  10. 10.🔍 Which is the odd one out? (a) steel (b) graphite (c) rubber (d) copper
  11. 11.🧱 Is clay pottery an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.🧱 Which property matters most for a boat hull? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  13. 13.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.🧱 Which property matters most for a hair band? (a) transparent (b) waterproof (c) flexible (d) electrical conductor
  15. 15.Which of these needs an electrical conductor? (a) a switch contact (b) a window pane (c) a roof sheet (d) a boat hull
  16. 16.🧱 Which property matters most for a roof sheet? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  17. 17.Which of these needs a waterproof material? (a) a skipping rope (b) a raincoat (c) a yoga mat (d) a spectacle lens
  18. 18.True or false: a yoga mat needs a flexible material. (a) True (b) False
  19. 19.Which of these needs a transparent material? (a) a magnifier lens (b) an umbrella cover (c) a switch contact (d) the core of a wire
  20. 20.True or false: a magnifier lens needs a transparent material. (a) True (b) False
  21. 21.🧱 Which material is best for a window pane? (a) glass (b) wood (c) steel (d) brick
  22. 22.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) cardboard (d) plastic-coated cloth
  23. 23.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) flexible (d) heat insulator
  24. 24.Which of these needs a flexible material? (a) a raincoat (b) a roof sheet (c) a hair band (d) an oven glove
  25. 25.True or false: a hair band needs a heat insulator. (a) False (b) True
  26. 26.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  27. 27.🔍 Which is the odd one out? (a) plastic (b) copper (c) graphite (d) steel
  28. 28.🔍 Which is the odd one out? (a) rubber (b) brass (c) dry wood (d) clay pottery
  29. 29.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) iron (d) cotton cloth
  30. 30.🧱 Which material is best for the core of an electric wire? (a) copper (b) wood (c) glass (d) rubber
  31. 31.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  33. 33.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  34. 34.True or false: a spectacle lens needs a flexible material. (a) True (b) False
  35. 35.🧱 Which property matters most for a yoga mat? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible
  36. 36.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) rubber (d) glass
  37. 37.True or false: a window pane needs a transparent material. (a) False (b) True
  38. 38.True or false: a yoga mat needs a transparent material. (a) False (b) True
  39. 39.🧱 Which property matters most for a window pane? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  40. 40.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) flexible (d) transparent

Answer key

  1. wood or plastic
  2. steel
  3. a boat hull
  4. the core of a wire
  5. True
  6. transparent
  7. a water tank
  8. a window pane
  9. dry wood
  10. rubber
  11. an insulator
  12. waterproof
  13. an insulator
  14. flexible
  15. a switch contact
  16. waterproof
  17. a raincoat
  18. True
  19. a magnifier lens
  20. True
  21. glass
  22. plastic-coated cloth
  23. electrical conductor
  24. a hair band
  25. False
  26. a conductor
  27. plastic
  28. brass
  29. iron
  30. copper
  31. an insulator
  32. True
  33. True
  34. False
  35. flexible
  36. steel
  37. True
  38. False
  39. transparent
  40. transparent

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