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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 269 · 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 of these needs an electrical conductor? (a) a boat hull (b) a car seat belt (c) a hair band (d) the core of a wire
  2. 2.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
  3. 3.🧱 Which material is best for a raincoat? (a) plastic-coated cloth (b) cardboard (c) cotton wool (d) paper
  4. 4.🧱 Which property matters most for a window pane? (a) transparent (b) waterproof (c) heat insulator (d) flexible
  5. 5.True or false: a spectacle lens needs a transparent material. (a) True (b) False
  6. 6.True or false: a window pane needs an electrical conductor. (a) False (b) True
  7. 7.🔍 Which is the odd one out? (a) rubber (b) graphite (c) steel (d) aluminium
  8. 8.True or false: a tea flask lining needs a transparent material. (a) False (b) True
  9. 9.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) waterproof (d) transparent
  10. 10.🧱 Is glass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  11. 11.True or false: the core of a wire needs an electrical conductor. (a) True (b) False
  12. 12.🧱 Is cotton cloth an electrical conductor or an insulator? (a) a conductor (b) an insulator
  13. 13.🧱 Which material is best for the core of an electric wire? (a) rubber (b) wood (c) copper (d) glass
  14. 14.Which of these needs a transparent material? (a) a boat hull (b) a plug pin (c) a cooking pot handle (d) a window pane
  15. 15.Which of these needs a waterproof material? (a) a car windscreen (b) an umbrella cover (c) a skipping rope (d) a tea flask lining
  16. 16.🔍 Which is the odd one out? (a) plastic (b) brass (c) aluminium (d) iron
  17. 17.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  18. 18.True or false: a water tank needs an electrical conductor. (a) True (b) False
  19. 19.Which of these needs an electrical conductor? (a) a raincoat (b) a switch contact (c) a roof sheet (d) a car windscreen
  20. 20.🧱 Which material is best for a cooking pot handle? (a) copper (b) aluminium (c) iron (d) wood or plastic
  21. 21.Which of these needs a waterproof material? (a) a window pane (b) the core of a wire (c) a raincoat (d) a magnifier lens
  22. 22.Which of these needs a flexible material? (a) a car windscreen (b) the core of a wire (c) a skipping rope (d) a plug pin
  23. 23.True or false: a window pane needs a transparent material. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) rubber (b) glass (c) dry wood (d) copper
  25. 25.Which of these needs a flexible material? (a) a car seat belt (b) a raincoat (c) a window pane (d) a cooking pot handle
  26. 26.Which of these needs a transparent material? (a) an umbrella cover (b) a tea flask lining (c) a roof sheet (d) a spectacle lens
  27. 27.🧱 Which property matters most for a skipping rope? (a) transparent (b) electrical conductor (c) flexible (d) waterproof
  28. 28.Which of these needs a heat insulator? (a) an oven glove (b) a boat hull (c) a window pane (d) a spectacle lens
  29. 29.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
  30. 30.🧱 Which property matters most for a car seat belt? (a) electrical conductor (b) flexible (c) waterproof (d) heat insulator
  31. 31.True or false: a window pane needs a heat insulator. (a) True (b) False
  32. 32.🧱 Is plastic an electrical conductor or an insulator? (a) an insulator (b) a conductor
  33. 33.🧱 Which material is best for a window pane? (a) wood (b) glass (c) brick (d) steel
  34. 34.🔍 Which is the odd one out? (a) iron (b) brass (c) steel (d) cotton cloth
  35. 35.🧱 Is brass an electrical conductor or an insulator? (a) an insulator (b) a conductor
  36. 36.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
  37. 37.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
  38. 38.🧱 Which material is best for the bars inside concrete? (a) glass (b) steel (c) plastic (d) rubber
  39. 39.True or false: a car windscreen needs a transparent material. (a) False (b) True
  40. 40.Which of these needs a heat insulator? (a) a water tank (b) a roof sheet (c) a switch contact (d) a cooking pot handle

Answer key

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

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