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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 859 · 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 property matters most for a boat hull? (a) flexible (b) waterproof (c) heat insulator (d) electrical conductor
  2. 2.🧱 Which material is best for a cooking pot handle? (a) aluminium (b) iron (c) copper (d) wood or plastic
  3. 3.🧱 Which material is best for the core of an electric wire? (a) wood (b) copper (c) glass (d) rubber
  4. 4.🔍 Which is the odd one out? (a) clay pottery (b) plastic (c) cotton cloth (d) aluminium
  5. 5.True or false: a car windscreen needs a transparent material. (a) True (b) False
  6. 6.🧱 Which property matters most for a magnifier lens? (a) waterproof (b) flexible (c) transparent (d) electrical conductor
  7. 7.Which of these needs a heat insulator? (a) a tea flask lining (b) a switch contact (c) a roof sheet (d) an umbrella cover
  8. 8.Which of these needs an electrical conductor? (a) a car windscreen (b) a roof sheet (c) a boat hull (d) a switch contact
  9. 9.🔍 Which is the odd one out? (a) plastic (b) rubber (c) brass (d) cotton cloth
  10. 10.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
  11. 11.🧱 Which property matters most for a hair band? (a) flexible (b) waterproof (c) heat insulator (d) transparent
  12. 12.🧱 Which material is best for a raincoat? (a) paper (b) plastic-coated cloth (c) cardboard (d) cotton wool
  13. 13.🧱 Which property matters most for a spectacle lens? (a) electrical conductor (b) transparent (c) waterproof (d) flexible
  14. 14.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  15. 15.Which of these needs a flexible material? (a) a roof sheet (b) a skipping rope (c) the core of a wire (d) a car windscreen
  16. 16.🧱 Which material is best for the bars inside concrete? (a) plastic (b) glass (c) rubber (d) steel
  17. 17.Which of these needs a transparent material? (a) a raincoat (b) a yoga mat (c) a plug pin (d) a car windscreen
  18. 18.Which of these needs a flexible material? (a) a raincoat (b) an umbrella cover (c) a hair band (d) the core of a wire
  19. 19.Which of these needs a waterproof material? (a) a car seat belt (b) a window pane (c) a raincoat (d) a spectacle lens
  20. 20.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  21. 21.True or false: a window pane needs a waterproof material. (a) True (b) False
  22. 22.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  23. 23.Which of these needs an electrical conductor? (a) a hair band (b) a spectacle lens (c) a plug pin (d) a window pane
  24. 24.🧱 Which property matters most for a roof sheet? (a) transparent (b) flexible (c) waterproof (d) electrical conductor
  25. 25.🔍 Which is the odd one out? (a) brass (b) copper (c) graphite (d) rubber
  26. 26.True or false: a water tank needs a heat insulator. (a) True (b) False
  27. 27.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  28. 28.🧱 Which property matters most for a plug pin? (a) heat insulator (b) transparent (c) flexible (d) electrical conductor
  29. 29.🧱 Which property matters most for a yoga mat? (a) flexible (b) heat insulator (c) waterproof (d) transparent
  30. 30.🧱 Is steel an electrical conductor or an insulator? (a) an insulator (b) a conductor
  31. 31.🧱 Which property matters most for a car windscreen? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  32. 32.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  33. 33.🔍 Which is the odd one out? (a) dry wood (b) cotton cloth (c) glass (d) steel
  34. 34.🧱 Which property matters most for an umbrella cover? (a) electrical conductor (b) flexible (c) heat insulator (d) waterproof
  35. 35.🔍 Which is the odd one out? (a) glass (b) brass (c) copper (d) aluminium
  36. 36.Which of these needs a transparent material? (a) a water tank (b) a plug pin (c) the core of a wire (d) a window pane
  37. 37.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  38. 38.True or false: a yoga mat needs a heat insulator. (a) True (b) False
  39. 39.True or false: a window pane needs a transparent material. (a) False (b) True
  40. 40.🧱 Is rubber an electrical conductor or an insulator? (a) a conductor (b) an insulator

Answer key

  1. waterproof
  2. wood or plastic
  3. copper
  4. aluminium
  5. True
  6. transparent
  7. a tea flask lining
  8. a switch contact
  9. brass
  10. a conductor
  11. flexible
  12. plastic-coated cloth
  13. transparent
  14. a conductor
  15. a skipping rope
  16. steel
  17. a car windscreen
  18. a hair band
  19. a raincoat
  20. a conductor
  21. False
  22. waterproof
  23. a plug pin
  24. waterproof
  25. rubber
  26. False
  27. an insulator
  28. electrical conductor
  29. flexible
  30. a conductor
  31. transparent
  32. an insulator
  33. steel
  34. waterproof
  35. glass
  36. a window pane
  37. a conductor
  38. False
  39. True
  40. an insulator

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