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Engineering Worksheet: Materials

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

Answer key

  1. glass
  2. cotton cloth
  3. flexible
  4. an umbrella cover
  5. an oven glove
  6. brass
  7. copper
  8. clay pottery
  9. False
  10. a water tank
  11. heat insulator
  12. an insulator
  13. an insulator
  14. True
  15. a boat hull
  16. transparent
  17. a roof sheet
  18. steel
  19. a magnifier lens
  20. transparent
  21. graphite
  22. True
  23. flexible
  24. a cooking pot handle
  25. transparent
  26. a conductor
  27. transparent
  28. steel
  29. electrical conductor
  30. a switch contact
  31. True
  32. True
  33. waterproof
  34. False
  35. False
  36. an insulator
  37. waterproof
  38. wood or plastic
  39. a conductor
  40. an insulator

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