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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 401 · 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) wood or plastic (b) aluminium (c) copper (d) iron
  2. 2.🧱 Which material is best for the core of an electric wire? (a) glass (b) rubber (c) copper (d) wood
  3. 3.🔍 Which is the odd one out? (a) copper (b) aluminium (c) steel (d) rubber
  4. 4.Which of these needs a flexible material? (a) a hair band (b) a tea flask lining (c) a cooking pot handle (d) an umbrella cover
  5. 5.🔍 Which is the odd one out? (a) graphite (b) iron (c) steel (d) cotton cloth
  6. 6.Which of these needs a flexible material? (a) a cooking pot handle (b) an umbrella cover (c) the core of a wire (d) a car seat belt
  7. 7.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  8. 8.🧱 Which property matters most for a boat hull? (a) heat insulator (b) electrical conductor (c) transparent (d) waterproof
  9. 9.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  10. 10.True or false: a roof sheet needs a waterproof material. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) cotton cloth (d) glass
  12. 12.Which of these needs a flexible material? (a) a cooking pot handle (b) the core of a wire (c) a yoga mat (d) a boat hull
  13. 13.True or false: a cooking pot handle needs a transparent material. (a) False (b) True
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.True or false: a window pane needs a waterproof material. (a) False (b) True
  16. 16.🧱 Which material is best for a raincoat? (a) cardboard (b) cotton wool (c) plastic-coated cloth (d) paper
  17. 17.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  18. 18.🔍 Which is the odd one out? (a) glass (b) graphite (c) copper (d) brass
  19. 19.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🔍 Which is the odd one out? (a) glass (b) rubber (c) graphite (d) clay pottery
  21. 21.🔍 Which is the odd one out? (a) dry wood (b) clay pottery (c) plastic (d) steel
  22. 22.Which of these needs a transparent material? (a) a raincoat (b) a plug pin (c) a car windscreen (d) a water tank
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  24. 24.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  25. 25.True or false: a spectacle lens needs a waterproof material. (a) False (b) True
  26. 26.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  27. 27.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  28. 28.🧱 Which property matters most for a water tank? (a) electrical conductor (b) transparent (c) flexible (d) waterproof
  29. 29.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  30. 30.True or false: an umbrella cover needs a transparent material. (a) True (b) False
  31. 31.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) glass (d) plastic
  32. 32.True or false: a skipping rope needs a transparent material. (a) False (b) True
  33. 33.True or false: a water tank needs a waterproof material. (a) False (b) True
  34. 34.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a roof sheet? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  36. 36.Which of these needs an electrical conductor? (a) a roof sheet (b) the core of a wire (c) a hair band (d) an umbrella cover
  37. 37.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  38. 38.Which of these needs a waterproof material? (a) a boat hull (b) a tea flask lining (c) a yoga mat (d) a magnifier lens
  39. 39.True or false: an umbrella cover needs a heat insulator. (a) False (b) True
  40. 40.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. wood or plastic
  2. copper
  3. rubber
  4. a hair band
  5. cotton cloth
  6. a car seat belt
  7. a conductor
  8. waterproof
  9. an insulator
  10. True
  11. aluminium
  12. a yoga mat
  13. False
  14. a conductor
  15. False
  16. plastic-coated cloth
  17. True
  18. glass
  19. a conductor
  20. graphite
  21. steel
  22. a car windscreen
  23. a conductor
  24. an insulator
  25. False
  26. True
  27. a conductor
  28. waterproof
  29. False
  30. False
  31. steel
  32. False
  33. True
  34. an insulator
  35. waterproof
  36. the core of a wire
  37. heat insulator
  38. a boat hull
  39. False
  40. an insulator

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