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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 512 · 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.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  2. 2.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  3. 3.🧱 Which property matters most for a window pane? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  4. 4.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) waterproof (d) electrical conductor
  5. 5.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) plastic (d) rubber
  6. 6.True or false: a skipping rope needs an electrical conductor. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) cotton cloth (b) plastic (c) glass (d) brass
  8. 8.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  9. 9.True or false: a car windscreen needs a waterproof material. (a) True (b) False
  10. 10.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  11. 11.🧱 Which material is best for a cooking pot handle? (a) wood or plastic (b) aluminium (c) copper (d) iron
  12. 12.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Is cotton cloth an electrical conductor or an insulator? (a) an insulator (b) a conductor
  14. 14.Which of these needs a heat insulator? (a) a plug pin (b) a skipping rope (c) a cooking pot handle (d) a raincoat
  15. 15.Which of these needs an electrical conductor? (a) a raincoat (b) a tea flask lining (c) a switch contact (d) an oven glove
  16. 16.🧱 Which property matters most for a cooking pot handle? (a) flexible (b) electrical conductor (c) transparent (d) heat insulator
  17. 17.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) transparent (c) waterproof (d) heat insulator
  18. 18.🧱 Which property matters most for an oven glove? (a) transparent (b) electrical conductor (c) heat insulator (d) flexible
  19. 19.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  20. 20.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.🧱 Which property matters most for a switch contact? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  22. 22.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  23. 23.Which of these needs a waterproof material? (a) a car seat belt (b) the core of a wire (c) a spectacle lens (d) a water tank
  24. 24.🧱 Which property matters most for a hair band? (a) flexible (b) electrical conductor (c) waterproof (d) heat insulator
  25. 25.Which of these needs an electrical conductor? (a) a skipping rope (b) a raincoat (c) a boat hull (d) the core of a wire
  26. 26.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🔍 Which is the odd one out? (a) aluminium (b) brass (c) iron (d) dry wood
  28. 28.True or false: a roof sheet needs an electrical conductor. (a) True (b) False
  29. 29.True or false: a cooking pot handle needs a heat insulator. (a) False (b) True
  30. 30.Which of these needs a flexible material? (a) a yoga mat (b) an umbrella cover (c) a cooking pot handle (d) a raincoat
  31. 31.🔍 Which is the odd one out? (a) clay pottery (b) rubber (c) plastic (d) graphite
  32. 32.🔍 Which is the odd one out? (a) iron (b) aluminium (c) brass (d) glass
  33. 33.🔍 Which is the odd one out? (a) brass (b) copper (c) iron (d) rubber
  34. 34.Which of these needs a flexible material? (a) an umbrella cover (b) a roof sheet (c) a skipping rope (d) a plug pin
  35. 35.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
  36. 36.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.🔍 Which is the odd one out? (a) iron (b) dry wood (c) plastic (d) clay pottery
  38. 38.Which of these needs a heat insulator? (a) a car windscreen (b) a raincoat (c) an oven glove (d) a magnifier lens
  39. 39.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  40. 40.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

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

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