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Engineering Worksheet: Materials

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

Answer key

  1. an insulator
  2. graphite
  3. flexible
  4. dry wood
  5. a skipping rope
  6. a hair band
  7. an insulator
  8. heat insulator
  9. a conductor
  10. aluminium
  11. True
  12. a conductor
  13. plastic
  14. a plug pin
  15. a car seat belt
  16. copper
  17. transparent
  18. electrical conductor
  19. steel
  20. a conductor
  21. the core of a wire
  22. False
  23. a conductor
  24. a tea flask lining
  25. rubber
  26. brass
  27. a cooking pot handle
  28. transparent
  29. copper
  30. a conductor
  31. flexible
  32. plastic-coated cloth
  33. glass
  34. a yoga mat
  35. heat insulator
  36. a window pane
  37. False
  38. transparent
  39. electrical conductor
  40. a roof sheet

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