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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 309 · 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) brass (b) copper (c) iron (d) clay pottery
  2. 2.Which of these needs an electrical conductor? (a) a magnifier lens (b) a hair band (c) the core of a wire (d) a car seat belt
  3. 3.Which of these needs a waterproof material? (a) a skipping rope (b) a raincoat (c) a yoga mat (d) a window pane
  4. 4.🔍 Which is the odd one out? (a) rubber (b) steel (c) graphite (d) iron
  5. 5.🔍 Which is the odd one out? (a) iron (b) aluminium (c) glass (d) copper
  6. 6.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  7. 7.True or false: a window pane needs a transparent material. (a) False (b) True
  8. 8.Which of these needs an electrical conductor? (a) an umbrella cover (b) a magnifier lens (c) a water tank (d) a plug pin
  9. 9.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  10. 10.🔍 Which is the odd one out? (a) clay pottery (b) iron (c) cotton cloth (d) glass
  11. 11.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) paper (c) cardboard (d) cotton wool
  12. 12.🧱 Which material is best for a cooking pot handle? (a) iron (b) aluminium (c) copper (d) wood or plastic
  13. 13.Which of these needs an electrical conductor? (a) a switch contact (b) a hair band (c) a tea flask lining (d) an oven glove
  14. 14.🧱 Which property matters most for a water tank? (a) waterproof (b) heat insulator (c) transparent (d) flexible
  15. 15.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  16. 16.🔍 Which is the odd one out? (a) brass (b) dry wood (c) glass (d) rubber
  17. 17.Which of these needs a waterproof material? (a) a spectacle lens (b) a roof sheet (c) a yoga mat (d) a car windscreen
  18. 18.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  19. 19.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) transparent (d) heat insulator
  20. 20.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) electrical conductor (d) heat insulator
  21. 21.True or false: a window pane needs an electrical conductor. (a) True (b) False
  22. 22.Which of these needs a heat insulator? (a) a cooking pot handle (b) a raincoat (c) a switch contact (d) a plug pin
  23. 23.True or false: a raincoat needs a waterproof material. (a) True (b) False
  24. 24.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) heat insulator (c) flexible (d) transparent
  25. 25.Which of these needs a flexible material? (a) a boat hull (b) a cooking pot handle (c) a skipping rope (d) a raincoat
  26. 26.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  27. 27.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  28. 28.Which of these needs a heat insulator? (a) a roof sheet (b) a switch contact (c) an oven glove (d) a water tank
  29. 29.🔍 Which is the odd one out? (a) cotton cloth (b) iron (c) brass (d) copper
  30. 30.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  31. 31.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  32. 32.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) flexible (c) electrical conductor (d) waterproof
  33. 33.🧱 Which material is best for a window pane? (a) steel (b) brick (c) wood (d) glass
  34. 34.🧱 Which material is best for the core of an electric wire? (a) copper (b) rubber (c) wood (d) glass
  35. 35.🧱 Which property matters most for a roof sheet? (a) heat insulator (b) electrical conductor (c) waterproof (d) flexible
  36. 36.True or false: a spectacle lens needs an electrical conductor. (a) True (b) False
  37. 37.True or false: a water tank needs a transparent material. (a) False (b) True
  38. 38.Which of these needs a transparent material? (a) a skipping rope (b) a boat hull (c) a magnifier lens (d) a water tank
  39. 39.True or false: a water tank needs a flexible material. (a) False (b) True
  40. 40.True or false: a hair band needs a flexible material. (a) True (b) False

Answer key

  1. clay pottery
  2. the core of a wire
  3. a raincoat
  4. rubber
  5. glass
  6. a conductor
  7. True
  8. a plug pin
  9. a conductor
  10. iron
  11. plastic-coated cloth
  12. wood or plastic
  13. a switch contact
  14. waterproof
  15. an insulator
  16. brass
  17. a roof sheet
  18. a conductor
  19. waterproof
  20. transparent
  21. False
  22. a cooking pot handle
  23. True
  24. transparent
  25. a skipping rope
  26. an insulator
  27. steel
  28. an oven glove
  29. cotton cloth
  30. flexible
  31. a conductor
  32. heat insulator
  33. glass
  34. copper
  35. waterproof
  36. False
  37. False
  38. a magnifier lens
  39. False
  40. True

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