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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 928 · 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 dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
  2. 2.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which property matters most for a car windscreen? (a) transparent (b) heat insulator (c) electrical conductor (d) flexible
  4. 4.🧱 Which property matters most for an umbrella cover? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  5. 5.Which of these needs an electrical conductor? (a) an umbrella cover (b) a switch contact (c) a water tank (d) a car seat belt
  6. 6.🧱 Which property matters most for the core of a wire? (a) transparent (b) electrical conductor (c) waterproof (d) heat insulator
  7. 7.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  8. 8.Which of these needs a transparent material? (a) a roof sheet (b) a plug pin (c) a magnifier lens (d) a switch contact
  9. 9.🧱 Which material is best for the bars inside concrete? (a) rubber (b) steel (c) plastic (d) glass
  10. 10.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  12. 12.True or false: a water tank needs a waterproof material. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) graphite (b) brass (c) copper (d) glass
  14. 14.🧱 Which property matters most for a magnifier lens? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  15. 15.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  16. 16.True or false: a hair band needs a heat insulator. (a) False (b) True
  17. 17.True or false: a switch contact needs a heat insulator. (a) False (b) True
  18. 18.🧱 Which property matters most for a roof sheet? (a) flexible (b) transparent (c) electrical conductor (d) waterproof
  19. 19.True or false: a tea flask lining needs a flexible material. (a) False (b) True
  20. 20.🧱 Is glass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  21. 21.Which of these needs an electrical conductor? (a) a plug pin (b) a car seat belt (c) a water tank (d) an oven glove
  22. 22.True or false: a magnifier lens needs a flexible material. (a) True (b) False
  23. 23.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
  24. 24.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.Which of these needs a flexible material? (a) a cooking pot handle (b) a plug pin (c) a water tank (d) a car seat belt
  26. 26.🔍 Which is the odd one out? (a) brass (b) steel (c) aluminium (d) clay pottery
  27. 27.🧱 Which property matters most for a tea flask lining? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  28. 28.True or false: a tea flask lining needs an electrical conductor. (a) True (b) False
  29. 29.Which of these needs a transparent material? (a) a hair band (b) a window pane (c) an umbrella cover (d) a roof sheet
  30. 30.Which of these needs a transparent material? (a) a plug pin (b) a yoga mat (c) a tea flask lining (d) a car windscreen
  31. 31.🧱 Which property matters most for an oven glove? (a) electrical conductor (b) waterproof (c) flexible (d) heat insulator
  32. 32.True or false: a car windscreen needs a flexible material. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) iron (b) graphite (c) rubber (d) brass
  34. 34.Which of these needs a waterproof material? (a) a skipping rope (b) a water tank (c) a magnifier lens (d) a car seat belt
  35. 35.🧱 Which property matters most for a window pane? (a) waterproof (b) flexible (c) electrical conductor (d) transparent
  36. 36.🔍 Which is the odd one out? (a) copper (b) brass (c) cotton cloth (d) aluminium
  37. 37.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  38. 38.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  39. 39.🔍 Which is the odd one out? (a) graphite (b) copper (c) dry wood (d) steel
  40. 40.Which of these needs a heat insulator? (a) an umbrella cover (b) a switch contact (c) a car windscreen (d) an oven glove

Answer key

  1. an insulator
  2. an insulator
  3. transparent
  4. waterproof
  5. a switch contact
  6. electrical conductor
  7. a conductor
  8. a magnifier lens
  9. steel
  10. an insulator
  11. a conductor
  12. True
  13. glass
  14. transparent
  15. a conductor
  16. False
  17. False
  18. waterproof
  19. False
  20. an insulator
  21. a plug pin
  22. False
  23. flexible
  24. a conductor
  25. a car seat belt
  26. clay pottery
  27. heat insulator
  28. False
  29. a window pane
  30. a car windscreen
  31. heat insulator
  32. False
  33. rubber
  34. a water tank
  35. transparent
  36. cotton cloth
  37. True
  38. a conductor
  39. dry wood
  40. an oven glove

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