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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 909 · 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 a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  2. 2.Which of these needs a waterproof material? (a) the core of a wire (b) a window pane (c) a raincoat (d) a magnifier lens
  3. 3.🧱 Which property matters most for a plug pin? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  4. 4.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) steel (d) rubber
  5. 5.True or false: a boat hull needs a waterproof material. (a) True (b) False
  6. 6.True or false: a car windscreen needs a transparent material. (a) False (b) True
  7. 7.Which of these needs a heat insulator? (a) an umbrella cover (b) a cooking pot handle (c) a raincoat (d) a car seat belt
  8. 8.True or false: a tea flask lining needs a heat insulator. (a) False (b) True
  9. 9.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) dry wood (d) graphite
  10. 10.🔍 Which is the odd one out? (a) copper (b) brass (c) graphite (d) plastic
  11. 11.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) copper (c) wood or plastic (d) iron
  12. 12.True or false: an umbrella cover needs a flexible material. (a) False (b) True
  13. 13.🧱 Which property matters most for a hair band? (a) transparent (b) heat insulator (c) flexible (d) electrical conductor
  14. 14.True or false: a raincoat needs an electrical conductor. (a) False (b) True
  15. 15.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) flexible (c) transparent (d) waterproof
  16. 16.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which property matters most for a magnifier lens? (a) transparent (b) heat insulator (c) electrical conductor (d) waterproof
  18. 18.🧱 Which property matters most for a window pane? (a) flexible (b) transparent (c) waterproof (d) electrical conductor
  19. 19.🧱 Which property matters most for a yoga mat? (a) heat insulator (b) waterproof (c) electrical conductor (d) flexible
  20. 20.True or false: an oven glove needs a heat insulator. (a) True (b) False
  21. 21.🔍 Which is the odd one out? (a) aluminium (b) cotton cloth (c) brass (d) iron
  22. 22.🔍 Which is the odd one out? (a) plastic (b) rubber (c) dry wood (d) steel
  23. 23.True or false: a magnifier lens needs a transparent material. (a) False (b) True
  24. 24.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  25. 25.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  26. 26.Which of these needs a transparent material? (a) a hair band (b) a tea flask lining (c) a magnifier lens (d) a plug pin
  27. 27.Which of these needs a flexible material? (a) a water tank (b) a switch contact (c) a roof sheet (d) a yoga mat
  28. 28.Which of these needs a waterproof material? (a) a car windscreen (b) a roof sheet (c) a magnifier lens (d) a skipping rope
  29. 29.True or false: a hair band needs an electrical conductor. (a) False (b) True
  30. 30.🧱 Which material is best for a window pane? (a) steel (b) wood (c) brick (d) glass
  31. 31.Which of these needs an electrical conductor? (a) a window pane (b) a yoga mat (c) a switch contact (d) a roof sheet
  32. 32.🧱 Which property matters most for the core of a wire? (a) flexible (b) waterproof (c) transparent (d) electrical conductor
  33. 33.True or false: a window pane needs an electrical conductor. (a) False (b) True
  34. 34.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  35. 35.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Which property matters most for a tea flask lining? (a) heat insulator (b) transparent (c) waterproof (d) flexible
  37. 37.🧱 Which property matters most for an oven glove? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
  38. 38.True or false: a cooking pot handle needs a waterproof material. (a) True (b) False
  39. 39.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  40. 40.🔍 Which is the odd one out? (a) copper (b) steel (c) rubber (d) aluminium

Answer key

  1. plastic-coated cloth
  2. a raincoat
  3. electrical conductor
  4. steel
  5. True
  6. True
  7. a cooking pot handle
  8. True
  9. graphite
  10. plastic
  11. wood or plastic
  12. False
  13. flexible
  14. False
  15. transparent
  16. an insulator
  17. transparent
  18. transparent
  19. flexible
  20. True
  21. cotton cloth
  22. steel
  23. True
  24. a conductor
  25. a conductor
  26. a magnifier lens
  27. a yoga mat
  28. a roof sheet
  29. False
  30. glass
  31. a switch contact
  32. electrical conductor
  33. False
  34. True
  35. a conductor
  36. heat insulator
  37. heat insulator
  38. False
  39. copper
  40. rubber

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