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Engineering Worksheet: Materials

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

Answer key

  1. a conductor
  2. heat insulator
  3. False
  4. a skipping rope
  5. clay pottery
  6. copper
  7. copper
  8. an oven glove
  9. a hair band
  10. a conductor
  11. False
  12. wood or plastic
  13. an insulator
  14. electrical conductor
  15. heat insulator
  16. an insulator
  17. True
  18. a car seat belt
  19. True
  20. an insulator
  21. an umbrella cover
  22. waterproof
  23. waterproof
  24. False
  25. a boat hull
  26. False
  27. a cooking pot handle
  28. a car windscreen
  29. False
  30. steel
  31. electrical conductor
  32. flexible
  33. a water tank
  34. True
  35. the core of a wire
  36. cotton cloth
  37. a plug pin
  38. a conductor
  39. True
  40. a conductor

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