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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 337 · 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 the bars inside concrete? (a) glass (b) steel (c) rubber (d) plastic
  2. 2.True or false: a yoga mat needs an electrical conductor. (a) True (b) False
  3. 3.Which of these needs a heat insulator? (a) a spectacle lens (b) a tea flask lining (c) a water tank (d) a window pane
  4. 4.Which of these needs a flexible material? (a) a boat hull (b) a cooking pot handle (c) an umbrella cover (d) a yoga mat
  5. 5.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) waterproof (d) transparent
  6. 6.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
  7. 7.Which of these needs a transparent material? (a) a plug pin (b) a window pane (c) an umbrella cover (d) a switch contact
  8. 8.Which of these needs a heat insulator? (a) a roof sheet (b) a cooking pot handle (c) a boat hull (d) a magnifier lens
  9. 9.True or false: a hair band needs a flexible material. (a) False (b) True
  10. 10.True or false: a boat hull needs a flexible material. (a) False (b) True
  11. 11.Which of these needs a flexible material? (a) a switch contact (b) a hair band (c) a plug pin (d) a roof sheet
  12. 12.🧱 Which property matters most for a spectacle lens? (a) waterproof (b) transparent (c) heat insulator (d) flexible
  13. 13.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  14. 14.Which of these needs a flexible material? (a) a plug pin (b) a window pane (c) a roof sheet (d) a car seat belt
  15. 15.Which of these needs a waterproof material? (a) a yoga mat (b) a magnifier lens (c) an umbrella cover (d) a plug pin
  16. 16.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  17. 17.Which of these needs a transparent material? (a) a car seat belt (b) a plug pin (c) a roof sheet (d) a magnifier lens
  18. 18.🔍 Which is the odd one out? (a) plastic (b) dry wood (c) rubber (d) copper
  19. 19.True or false: a tea flask lining needs a heat insulator. (a) True (b) False
  20. 20.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) heat insulator (c) electrical conductor (d) transparent
  21. 21.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  22. 22.🔍 Which is the odd one out? (a) iron (b) plastic (c) brass (d) steel
  23. 23.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) clay pottery (d) rubber
  24. 24.🧱 Which property matters most for a hair band? (a) flexible (b) heat insulator (c) waterproof (d) electrical conductor
  25. 25.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.True or false: a skipping rope needs a transparent material. (a) True (b) False
  27. 27.🔍 Which is the odd one out? (a) dry wood (b) plastic (c) rubber (d) steel
  28. 28.🔍 Which is the odd one out? (a) graphite (b) copper (c) clay pottery (d) iron
  29. 29.🧱 Which property matters most for a window pane? (a) waterproof (b) heat insulator (c) flexible (d) transparent
  30. 30.Which of these needs a flexible material? (a) a skipping rope (b) a switch contact (c) an umbrella cover (d) a roof sheet
  31. 31.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) waterproof (d) heat insulator
  32. 32.Which of these needs a waterproof material? (a) the core of a wire (b) a yoga mat (c) a raincoat (d) a window pane
  33. 33.Which of these needs a waterproof material? (a) a water tank (b) a car windscreen (c) a skipping rope (d) a plug pin
  34. 34.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  35. 35.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) transparent (c) heat insulator (d) waterproof
  36. 36.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  37. 37.🧱 Which property matters most for a cooking pot handle? (a) heat insulator (b) flexible (c) electrical conductor (d) transparent
  38. 38.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  39. 39.🔍 Which is the odd one out? (a) copper (b) cotton cloth (c) steel (d) iron
  40. 40.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor

Answer key

  1. steel
  2. False
  3. a tea flask lining
  4. a yoga mat
  5. flexible
  6. plastic-coated cloth
  7. a window pane
  8. a cooking pot handle
  9. True
  10. False
  11. a hair band
  12. transparent
  13. an insulator
  14. a car seat belt
  15. an umbrella cover
  16. an insulator
  17. a magnifier lens
  18. copper
  19. True
  20. transparent
  21. a conductor
  22. plastic
  23. aluminium
  24. flexible
  25. a conductor
  26. False
  27. steel
  28. clay pottery
  29. transparent
  30. a skipping rope
  31. waterproof
  32. a raincoat
  33. a water tank
  34. a conductor
  35. waterproof
  36. copper
  37. heat insulator
  38. a conductor
  39. cotton cloth
  40. an insulator

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